36 results on '"Oaie, Gheorghe"'
Search Results
2. Maps of the topography of water surface levels in the Danube Delta, between the main branches
- Author
-
BONDAR Constantin, OAIE Gheorghe, IORDACHE Gabriel, and ANGHEL Sorin
- Subjects
InSAR techniques ,water surface level ,hydrometric gauge ,empirical function ,Ethnology. Social and cultural anthropology ,GN301-674 ,Science ,Science (General) ,Q1-390 - Abstract
Within the project “Hydrological Monitoring of Wetland Areas Using SAR Techniques (Hydro-SAR)”, concluded by the TERRASIGNA (Romania) with the European Space Agency (ESA), the task of GeoEcoMar was to track and check the correlation of data provided by InSAR techniques with ground observations and measurements in the Danube Delta. Activities in the field and laboratory enabled elaboration of maps of vector fields for the water flow directions on the Danube Delta territory, based on the relief of the water surface levels at 450, 400, 350, 300, 250, 200, 150, 100, 50 and 0 cm, measured at Tulcea hydrologic station. In order to elaborate the maps of water surface levels, the altimetric stability of hydrometric gauges from the Danube Delta territorry was checked by establishing the Earth crust subsidence in each gauge location. Interpretation of recorded data shows a relative low subsidence rate for the location of the hydrometric gauge in Tulcea (observations recorded for the period 1858-2013) selected as hydrometric reference point, with the origin of the zero of the gauge situated at 0.57 m altitude relative to the Black Sea – Sulina reference system. The paper presents isoline maps of the water surface levels on the surface of the Danube Delta between the main distributaries (Chilia – Sulina – Sf. Gheorghe), for the above mentioned water surface levels.
- Published
- 2016
- Full Text
- View/download PDF
3. EMSO : A Distributed Infrastructure for Addressing Geohazards and Global Ocean Change
- Author
-
BEST, MAIRI, FAVALIgg, PAOLO, BERANZOLI, LAURA, CANNAT, MATHILDE, CAGATAY, NAMIK, DAÑOBEITIA, JUAN JOSE, DELORY, ERIC, DE STIGTER, HENKO, FERRÉ, BÉNÉDICTE, GILLOOLY, MICK, GRANT, FIONA, HALL, PER O.J., LYKOUSIS, VASILIOS, MIENERT, JUERGEN, DE MIRANDA, JORGE MIGUEL ALBERTO, OAIE, GHEORGHE, RADULESCU, VLAD, ROLIN, JEAN-FRANÇOIS, RUHL, HENRY, and WALDMANN, CHRISTOPH
- Published
- 2014
4. Trace element contamination in the arms of the Danube Delta (Romania/Ukraine): Current state of knowledge and future needs
- Author
-
Vignati, Davide A.L., Secrieru, Dan, Bogatova, Yuliya I., Dominik, Janusz, Céréghino, Régis, Berlinsky, Nikolai A., Oaie, Gheorghe, Szobotka, Stefan, and Stanica, Adrian
- Published
- 2013
- Full Text
- View/download PDF
5. Holocene litho- and biostratigraphy of the NW Black Sea (Romanian shelf)
- Author
-
Oaie, Gheorghe and Melinte-Dobrinescu, Mihaela C.
- Published
- 2012
- Full Text
- View/download PDF
6. ENAA Studies of pollution in anoxic Black Sea sediments
- Author
-
Duliu, Octavian G., Cristache, Carmen, Oaie, Gheorghe, Culicov, Otilia A., Frontasyeva, Marina V., and Toma, Magdalena
- Published
- 2009
- Full Text
- View/download PDF
7. A Dedicated On-Board Dual-Energy Computer Tomograph
- Author
-
Iovea, Mihai, Neagu, Marian, Duliu, Octavian G., Oaie, Gheorghe, Szobotka, Stefan, and Mateiasi, Gabriela
- Published
- 2011
- Full Text
- View/download PDF
8. Geosciences / The geochemistry of 1 ky old euxinic sediments of the Western Black Sea
- Author
-
Duliu, Octavian G., Cristache, Carmen I., Bojar, Ana-Voica, Oaie, Gheorghe, Culicov, Otilia-Ana, Frontasyeva, Marina V., and Constantinescu, Emil
- Subjects
Black Sea ,unconsolidated sediments ,euxinic zone ,redox-sensitive elements ,geochemistry - Abstract
To get more data on the geochemistry of Black Sea euxinic sediments, a 50-cm core was collected at a depth of 600 m on a Western Black Sea Continental Platform slope. The core contained unconsolidated sediments rich in cocoolithic ooze and mud. Epithermal Neutron and Prompt Gamma Activation Analysis were used to determine the content of nine major (Na, Mg, Al, Si, K, Ca, Ti, Mn, and Fe as oxides) and 32 trace elements (Cl, Sc, V, Cr, Co, Ni, Zn, As, Se, Br, Rb, Sr, Zr, Mo, Sn, Sb, Cs, Ba, La, Ce, Nd, Sm, Eu, Gd, Tb, Dy, Yb, Hf, Ta, W, Th, and U) with a precision varying between 3 and 9%. The core contained unconsolidated sediment rich in coccolithic ooze and mud. Previous 210 Pb geochronology suggests an age of 1 ky of considered sediments. Major components distribution showed that, except for Cl and Ca, the contents of all other elements are similar to Upper Continental Crust (UCC) and North American Shale Composite (NASC). The distribution of the 32 trace elements showed similarities to the UCC, except for redox-sensitive metals Fe, Se, Mo, and U, of which the significantly higher content reflects the presence of euxinic conditions during deposition. A chondrite normalized plot of nine rare earth elements indicated a similarity to UCC and NASC, suggesting a continental origin of sedimentary material. (VLID)4590286
- Published
- 2019
9. The Geochemistry of 1 ky Old Euxinic Sediments of the Western Black Sea
- Author
-
Duliu, Octavian G., primary, Cristache, Carmen I., additional, Bojar, Ana-Voica, additional, Oaie, Gheorghe, additional, Culicov, Otilia-Ana, additional, Frontasyeva, Marina V., additional, and Constantinescu, Emil, additional
- Published
- 2019
- Full Text
- View/download PDF
10. Natural Marine Hazards In The Black Sea And The System Of Their Monitoring And Real-Time Warning
- Author
-
OAIE, Gheorghe, SEGHEDI, Antoneta, and RĂDULESCU, Vlad
- Subjects
landslide ,active fault ,eismic source ,gauge ,tsunami ,2D marine seismics ,early warning system - Abstract
This paper presents results obtained in two projects of GeoEcoMar, which led from the study of extreme marine events and the inventory of marine geohazards to the creation of a real-time warning system for marine hazards in the Black Sea. Project Profet resulted in establishment of the main marine hazards that could trigger a tsunami-type event in the Black Sea, like earthquakes, active faults, landslides, gas hydrates, gas seeps and mud-volcanoes. Also, major tsunami-type events in the Black Sea were listed and described from various sources. Through project MARINEGEOHAZARD, the EUXINUS and GeoPontica networks have been established, which produce data for the National Data Centres in Constanţa and Varna. The EUXINUS network is a complex automatic marine measurement system, consisting of 5 measuring instruments installed in key points of the Western Black Sea shelf. The main task of one of its main components, the Black Sea Security System, is to elaborate risk assessments and to send early-warning notifications to authorities., {"references":["Airinei, St., 1973. L'appartenance de quatre dislocations crustales dobrogeenes a un probable systeme prejurassique de failles de transformations. Rapp. Comm. Int. Mer Medit., 22/2a, 158-159.","Alexandrescu, P., Baltres, A., 2007. Cutremure in Dobrogea. Pontica, XL, 74 – 83.","Altinok, Y., Ersoy, S., 1998. Tsunami observed at Turkish coasts and near surroundings. In: Book of 7th Conf. on Natural and Manmade Hazards HAZARD 98, Crete Island (Greece), 31 – 32.","Altinok, Y., Ersoy, S., 2000. Tsunamis Observed on and Near the Turkish Coast. Nat. Hazards, 21, 185–205.","Ambraseys , N. N., Finkel, C. F. , 1995. The Seismicity of Turkey and Adjacent Areas, A Historical Review, 1500–1800, EREN Ltd, Istanbul, 240 p.","Atanasiu, I., 1961. Cutremurele de pamânt din Romania. Ed. Acad. RPR., Bucuresti.","Avram, E., Ioane, D., Drăgoi, D., 1998. Capidava-Ovidiu fault system revisited. Rev. Roum. Geol., 42, 113-124.","Baltres, A., 1993. Formatiunea de Somova (Dobrogea de Nord) Studiu sedimentologic. Unpublished PhD, Universitaty of Bucharest, 194 p.","Banks, C.J., Robinson, A.G, 1997. Mesozoic strike-slip back-arc basins of the western Black Sea region. In: A.G. Robinson, editor, Regional and Petroleum Geology of the Black Sea and Surrounding Regions. AAPG Memoir no 68, 53-62.","Barka, A., Reilinger, R., 1997. Active tectonics of Eastern Mediterranean region: deduced from GPS, neotectonic and seismicity data. Annali di Geofisica, X2 93, 587-610.","Bălă, A., Răileanu, V., Dinu, C., Diaconescu, M., 2015. Crustal seismicity and active fault systems in Romania. Romanian Reports in Physics, 67, 3, 1176–1191.","Beşuţiu L., 2009. Geodynamic and seismotectonic setting of the SE Carpathians and their foreland. In: Beşuţiu L. (Ed.) Integrated research on the intermediate depth earthquakes genesis within Vrancea zone. Vergiliu Publishing House, 233— 248.","Beşuţiu L., Zugrăvescu D., 2004. Considerations on the Black Sea opening and related geodynamic echoes in its NW inland as inferred from geophysical data interpretation. Ukrainian Geologist 3, 51—60.","Beşuţiu, L., Orlyuk, M., Zlăgnean, L., Romenets, A., Atanasiu, L., Makarenko, I., 2014. Peceneaga-Camena Fault: Geomagnetic insights into active tectonic contact. Geofiziceskiy Jurnal 1, 36, 133-144.","Biter, M., Malita, Z., Diaconescu, M., Radulescu, F., Nacu, V., 1998. Crustal movements and earthquakes distribution in Dobrudja and Black Sea. GEO-ECO-MARINA 3, 109-117.","Bohrmann, G., Ivanov, M., Foucher, J. P. et al., 2003. Mud vulcanoes and gas hydrates in the Black Sea: new data from Dvurechenskii and Odessa mud vulcanoes. Geo-Marine Letters, 23, 3-4, 239-249.","Bohrmann, G., Sahling, H., Pape, T., Klapp, S., 2008. Gas seeps and gas hydrates in the Black Sea and other marine environments. In: Oaie G. (Coord.), Natural Hazards in the Marine Area – International Symposium, Bucharest, Romania, 33-35.","Burchfiel, B.C., 1980. Eastern European alpine system and the Carpathian orocline as an example of collision tectonics. Tectonophysics, 63: 31-61.","Constantinescu, L., Mârza, V., 1989. Long-term strong seismicity of Vrancea (Romania) region, in: Proceedings of the 21st ESC General Assembly, 23–27 August 1988, Sofia, Bulgaria, 58–66.","Constantinescu, L., Constantinescu, P., Cornea, I., Lăzărescu, V., 1976. Recent seismic information on the lithosphere in Romania. Revue Roumaine de Géologie, Géophysique, Géographie, 20, 30-34.","Cornea, I., Polonic, G., 1979. Data regarding seismicity and seismotectonics of the Eastern part of Moesian Platform (in Romanian). St. Cerc. Geol. Geof. Geogr., Geofizică, 17, 2, 167–176.","Cristea, P., Stanchievici, B., Spânoche, S., Pompilian, A., Rădulescu, F., 1994. Seismic information related to the crust in Dobrogea. – XVII-th Symposium on Earth Physics & Applied Geophysics, Abstracts volume, A 13, Bucuresti (in Romanian).","Dewey, J. F., Pitman, W., Rya n, W., Bonin, J., 1973. Plate Tectonics and the Evolution of the Alpine System. Geological Society of America Bulletin 84, 3137-3180.","Diaconescu, M., Maliţa, Z., 2008. Characterization of the tsunamigenic potential of the seismic sources located around the Black Sea area. In: Oaie G. (Coord.), Natural Hazards in the Marine Area – International Symposium, Bucharest, Romania, 13-14.","Dinu, C., Wong, H.K., Ţambrea, D., Maţenco, L., 2005. Stratigraphic and structural characteristics of the Romanian Black Sea shelf. Tectonophysics 410, 1-4, 417-435.","Dotsenko, S. F., 1995. Black Sea tsunamis. Izv. Ros. Acad. Nauk, Fiz. Atm. Okean., 30, 4, 483 – 489.","Dumitrescu, I., Săndulescu, M., 1968. Problèmes structuraux fondamentaux des Carpathes roumaines et de leur Avant-pays. Anuarul Comitetului Geologic, v. 36, p. 195–218.","Enescu, D., Enescu, B. D., 1992. On the subduction process in the zone presently occupied by the Carpathians. Revue Romaine de Physique, 37, 525–533.","Enescu, D., Popescu, E., Radulian, M., 1996. Source characteristics of the Sinaia (Romania) sequence of May-June 1993. Tectonophysics 261, 39-49.","Egorov, V.N., Polikarpov, G.G., Gulin, M.B., Artemov, Yu.G., Gulin, S.B., Evtushenko, D.B., Stokozov, N.A., 2001. Distribution of gas seeps in the research area. In: \"Biogenic Gases exchange in the Black Sea: BIGBLACK\". Sevastopol, Ukraine.","Egorov, V. N., Polikarpov, G.G., Gulin, S.B., Artemov, Y.G., Stokozov, N.A., Kostova, S.K., 2003. Present-day views on the environment-forming and ecological role of the Black Sea methane gas seeps. Jour. of Mar. Ecol., 2, 3, 5 – 26 (in Russian).","Finetti, I., Bricchi, G., Del Ben, A., Pipa n, M., Xuan, Z., 1988. Geophysical study of the Black Sea. Bolletino di Geofisica Teorica ed Applicata, 30: 197-324.","Gavăt, I., Cornea, I., Gheorghe, A., Gaspa r, R. & Tomescu, L. 1967. La structure de soubassement moesien entre le Danube et les riviers du Ialomiţa, Buzău et Siret. Revue Roumaine de Géologie, Géophysique et Géographie, serie Géophysique 11, 23–32.","Görür, N., 1988, Timing of opening of the Black Sea basin: Tectonophysics, v. 147, p. 247-262.","Görür, N., 1997. Cretaceous syn- to postrift sedimentation on the southern continental margin of the western Black Sea Basin. In: A.G. Robinson, editor, Regional and Petroleum Geology of the Black Sea and Surrounding Regions. AAPG Memoir no 68, 227- 240.","Grădinaru, E., 1988. Jurassic sedimentary rocks and bimodal volcanics of the Cirjelari-Camena outcrop belt: evidence for a transtensile regime of the Peceneaga-Camena Fault. St. Cerc. Geol. geof., geogr., Geologie, 33, 97-121.","Grigorash, Z.K., Korneva, L.A., 1969. Tsunamis in the Black Sea, in: \"International Tsunami Information Center, Newsletter\" Honolulu, Hawaii, 2, 2.","Grigorash, Z.K., Korneva, L.A., 1972. Mareograph data about the Black Sea tsunami caused by the Turkish earthquake in December 1939, Oceanology, 12, 417–422.","Grigorova, E., Grigorov, B., 1964. Epicenters and seismic lineaments in Bulgaria, BAS, Sofia (in Bulgarian with French abstract), 83 pp.","Guidoboni, E., Comastri, A., Traina., G., 1994. Catalogue of Ancient Earthquakes in the Mediterranean Area up to the 10th Century. Pub. Ist. Naz. Geofis. Vulcanol., Rome, 504 p.","Hippolyte, J.-C., 2002. Geodynamics of Dobrogea (Romania): new constraints on the evolution of the Tornquist-Teisseyre Line, the Black Sea and the Carpathians. Tectonophysics 357, 33-53.","Hippolyte J.-C., Săndulescu M., Badescu D., Badescu N., 1996. L'activité d'un segment de la ligne Tornquist — Teisseyre depuis le Jurassique supérieur: la faille de Peceneaga-Camena (Roumanie). C. R. Acad. Sci. Paris 323 (Série IIa), 1043—1050 (in Romanian).","Iliev, I., Brouchev, I., 1994. Map of the geological hazards in Bulgaria (in Bulgarian with an English summary), explanatory text to the map at scale 1:500,000, Military Topogr. Serv., Publ. House of Bulg. Acad. of Sci., Sofia, 143 p.","Ioane, D., Seghedi, A., Stanchievici, B., Roşca, V., Neaga, V., Moroz, V., Romanov, L., Balea, A., Andrei, C., Ivanov, A., Scurtu, S., Asimopolos, L., Rogobete, M., Udrescu, C. & Stoian, M. 1996. Integrated Geological and Geophysical Investigations in the Area of Predobrogea Depression (Scythian Platform) and of North Dobrogea Orogen, in Order to Decipher the Deep Structure. Archives of the Geological Institute of Romania, Unpublished Report, Bucharest (in Romanian).","Kuran, U., Yalciner, A.C., 1993. Crack propagations earthquakes and tsunamis in the vicinity of Anatolia. 5-th International Tsunami Symposium, 1991, Tsunamis in the world, Edited by Tinti, S., Kluwer Academic Publishers, 159-175.","Kutas, R.I, Rusakov, O., Kobolev, V. P., 2002. Gas seeps in the Northwestern Black Sea: Geological and geophysical studies. Geologiya i Geofizika 43, 7, 698-705.","Kutas, R.I, Paliy, S.I., Rusakov, O., 2004. Deep faults, heat flow and gas leakage in the northern Black Sea. Geo-Marine Letters 24, 3, 163- 168. DOI: 10.1007/s00367-004-0172-3","Lander, J.F., 1969. Seismological notes – September and October 1968, B. Seismol. Soc. Am., 59, 1023–1030","Lein, A. Yu., Ivanov, M. V., Pimenov, N. V., Gulin, M. B., 2002. Geochemical peculiarities of the carbonate constructions formed during microbial oxidation of methane under anaerobic conditions. Microbiology 70, 78-90.","Matova, M., 2000. Recent geological activity along the northeastern Bulgarian Black Sea coast. Geological Quarterly, 44, 4, 355-361","Matova, M., Spiridonov, H., Rangelov, B., Petrov, P., 1996. Major Active Faults in Bulgaria. Journal of Earthquakes Prediction Research 5, 3, 436-439.","Moldovan, I.A., Popescu, E., Bazacliu, O., Enescu, B.D., Radulian, M., 2005. Time, space and size distribution of earthquakes for Făgăraş seismogenic region (Romania). Seismology, 479-494.","Monserrat, S., I., Vilibrić I., Rabinovich, A.B., 2006. Meteotsunamis: Atmospherically induced destructive ocean waves in the tsunami frequency band. Nat. Hazards Earth Syst. Sci., 6, 1035–1051.","Murgoci, G.M., 1915. Études géologiques dans la Dobrogea du Nord. La tectonique de l'aire cimmérienne. Anuarul Institutului Geologic al României, 6 (1912), 443-568.","Naudts, L., Greinert, J., Artemov, Y., Staelens, P., Poort, P., Van Rensbergen, P., De Batist, M., 2006. Geological and morphological setting of 2778 methane seeps in the Dnepr paleo-delta, northwestern Black Sea. Marine Geology 227, 3-4, 177-199.","Neaga, V.I., Moroz, V.F., 1987. Die jungpalaozoischen Rotsedimente im Sudteil des Gebietes zwischen Dnestr und Prut. Zeitschrift fur angewandte Geologie 33, 238–242.","Nikishin, A., Korotaev, M., Ershov, A. & Brunet, M. 2003. The Black Sea basin: tectonic history and Neogene–Quaternary rapid subsidence modelling. Sedimentary Geology 156, 149– 168.","Nikishin, A.M. Okay , A., Tüys üz, O., Demirer, Al., Wannier, M., Amelin, N., Petrov, E., 2015. The Black Sea basin sructure and history: New model based on deep penetration regional seismic data. Part 2: Tectonic history and paleogeography. Marine and Petroleum Geology, 59, 656-670. References and further reading may be available for this article. To view references and further reading you must purchase this article.","Nikonov, A.A., 1997 a. Tsunamis occurrence on the coast of the Black Sea and Sea of Azov. Izvestia, Physics of the Solid Earth, 33, 77-87.","Nikonov, A. A, 1997 b. Tsunami – a Threat from the South, Science in Russia, 6, 13–18.","Oaie, G., Opreanu, P., Seghedi, A., 2013. Extreme marine events in the NW part of the Black Sea, revealed by sedimentological, paleontological and radiocarbon data. Abstracts of IGCP 610 First Plenary Conference and Field trip, Georgia, 12-16 October 2013.","Oaie, Gh., Ioane, D., Diaconescu, M., Seghedi, A., Lăzăroiu, Gh., Ruzsa, Gy., 2006a. Cercetari multidisciplinare privind hazardele naturale. Studiu de caz: Producerea fenomenului tsunami in Marea Neagra, Acronim-PROFET, Hazard Natural: evenimente in Marea Neagra, 27–32, 2006.","Oaie, Gh., Secrieru, D., Seghedi, A., Ioane, D., and Diaconescu, M., 2006b. Preliminary assessment of the tsunami hazard for the Romanian Black Sea area: historical and paleotsunami data, Geosciences, 300–302.","Oaie, Gh., Ioane, D., Seghedi, A., Diaconescu, M., Opreanu, P., Ruzsa, G., 2008. Marine natural hazard: new data about tsunami phenomenon along the Romanian Black Sea coast. In: Natural Hazards in the Marine Area – International Symposium Bucharest, Romania, 25- 29.","Oczlon, M., Seghedi, A., Carrigan, C., 2007. Avalonian and Baltican origins terranes in the Moesian Platform (southern Europe, Romania and Bulgaria) in the context of Caledonian terranes along the southwestern margin of the East European craton. In: Linnemann, U., Nance, R.D., Kraft, P. and Zulauf, G., eds., The evolution of the Rheic Ocean: From Avalonian-Cadomian active margin to Alleghenian-Variscan collision. Geological Society of America, Special Paper 423, 375-400.","Okay , A.I., Şengör, A.M.C., Görür, N.,1994. The Black Sea: Kinematic history of opening and its effect on the surrounding regions. Geology, 22, 267 - 270.","Oxburgh, E.R., 1974. The plain man's guide to plate tectonics. Proc. Geol. Assoc. London. 85. 299-357.","Panin, N., Ion, G., Ion, E. 2005. The Danube Delta – Chronology of lobes and rates of sediment deposition. Geo-Eco-Marina 9-10, 36-40.","Papa dopoulos, G. A., Imamura, F., 2001. A proposal for a new tsunami intensity scale, in: Proceedings International Tsunami Symposium 2001, Seattle, Session 5(5–1), 569–577.","Papa dopoulos, G. A., Diakogianni, G., Fokaefs, A., Ranguelov, B., 2011. Tsunami hazard in the Black Sea and the Azov Sea: a new tsunami catalogue. Nat. Hazards Earth Syst. Sci., 11, 945–963.","Partheniu, R., Ioane, D., 2015. Tsunami hazard assessment for the Crimea seismic area. GEO 2015, Abstracts, 5 pp.","Pelinovsky, E., 1999. Preliminary estimates of tsunami danger for the northern part of the Black Sea. Phys. Chem. Earth (A), 24, 2, 175 – 178.","Popescu, I. G., 1938. Cutremurele de Pamânt din Dobrogea. Analele Dobrogei, vol. 1, 22-40.","Popescu, I., Lericolais, G., Panin, N., Normand, A., Dinu, C., Le Drezen, E., 2004. The Danube submarine canyon (Black Sea): morphology and sedimentary processes. Marine Geology 206, 249-265.","Popescu Voiteşti, I., 1933. Mangalia, situația geologică şi originea izvoarelor sale minerale. An. Dob., 12‐14, 1‐19.","Popescu Voiteşti, I., 1938. Evoluția geologică a Cadrilaterului, An Dob., 19, 1, 1‐21.","Radulian, M., Mândrescu, N., Popescu, E., Utale, A., Panza, G. F., 2000. Characterization of the Romanian Seismogenic Zones, Pure appl. geophys. 157, 57–77.","Ranguelov, B., 1996. Seismicity and tsunamis in the Black Sea, in: Proc. of the 25th ESC General Assembly, September 9–14, Reykjavik, Iceland, 667–673,","Ranguelov, B., 1998. Earthquakes, tsunamis and landslides on the north coast of the Black Sea. In: Marinski, J. G. (Ed.), Protection and Long-Term Stabilization of the Slopes of the Black Sea Coast, Bulg. Acad. of Sci., Sofia, 51–63 (in Bulgarian with English summary).","Ranguelov, B., 2003. Possible tsunami deposits discovered on the Bulgarian Black Sea coast and some implications. In: Yalçiner, A. C., Pelinovski, E., Synolakis, C. E., and Okal, E., (Eds.), Submarine Landslides and Tsunamis, NATO Sci. Ser., Ser. 4, 21, 237– 242, Kluwer Acad., Dordrecht, Netherlands.","Ranguelov, B., 2008. Tsunamis in the Black Sea and some recent investigations. In: Natural Hazards in the Marine Area – International Symopsium, Bucharest, Romania, 21-23.","Ranguelov, B., 2010. Atlas of the tsunami risk susceptible areas along the Northern Bulgarian Black Sea coast – Balchik site. 25 p., ISBN 978-954-9531-15-2.","Ranguelov, K. B., Gospodinov, D., 1994. The Seismic Activity after the 31 03 1901 Earthquake in the Region of Shabla-Kaliakra. Bulg. Geophys. Journal. 20, 2, 49-55.","Ranguelov, K. B., Gospodinov, D., 1995. Tsunami vulnerability modelling for the Bulgarian Black Sea coast. Wat. Sci. Tech., vol. 32, no. 7, p. 43-53","Ranguelov, B., Tinti, S., Pagnoni, G., Tonini, R., Zaniboni, F., Armigliato, A., 2008. The nonseismic tsunami observed in the Bulgarian Black Sea on May, 7th 2007. Was it due to a submarine landslide?, Geophys. Res. Lett., 35, L18613doi:10.1029/2008GL034905.","Rădulescu, D., Cornea, I., Săndulescu, M., Constantinescu P., Rădulescu F., Pompilian A., 1976. Structure de la croute terestre en Roumanie. Essai d'interpretation des etudes seismique profondes. Anuarul Institutului de Geologie şi Geofizică, Geologie, L, 5-36.","Reilinger, R. E., McClusky, S. C., Oral, M. B., 1997. GPS measurements of present day crustal movements in the Arabia-Africa-Eurasia plate collision zone, J. Geophys. Res., 102, 9983–9999.","Robinson, A.G., Kerusov E., 1997. Stratigraphic and structural development of the Gulf of Odessa, Ukrainian Black Sea: implications for Petroleum Explorations. In: Robinson, A.G. (ed) Regional and Petroleum Geology of the Black Sea and Surrounding Areas. American Association of Petroleum Geologists, Memoir 68, 369-380.","Robinson, A.G., Rudat, J.H., Banks, K.J., Wiles, R.L.F., 1996. Petroleum geology of the Black Sea. Mar. Pet. Geology 13, 2, 195-223.","Roşca, V., Seghedi, A., Baltres, A., Neaga, V., Moroz, V., Romanov, L., Vaida, M., Visarion, C., Ioane, D., Ioane, Z., Cristea, P., Stanchievici, B., Andrei, C., 1994. Integrated Geological and Geophysical Studies in the Pre- Dobrogea Depression and North Dobrogea Orogen. Archives of the Geological Institute of Romania, Unpublished report, Bucharest (in Romanian).","Săndulescu, M., 1984. Geotectonics of Romania. Bucharest: Editura Tehnică, 336 p. (in Romanian).","Săndulescu, M., 1995. Dobrogea within the Carpathian Foreland. In: Field Guidebook. Central and North Dobrogea. IGCP Project No.369, Comparative Evolution of PeriTethyan Rift Basins, Romania, Oct.1-4, 1995, 1-4.","Săndulescu, M., 2009. The geotectonic framework of a peculiar seismogenetic area – the Vrancea seismic zone (Romanian Carpathians). Proc. Rom. Acad., Series B, 2–3, 151–157.","Săndulescu, M., Visarion, M., 1988. Les structures des plates-formes situees dans l'avant-pays et au-dessous des nappes de flysch des Carpates Orientales. St. Tehn. Econ. Seria D, Prosp. Geofiz. 15, p. 61-68.","Săndulescu, M., Visarion, M., 2000. Crustal structure and evolution of the CarpathianWestern Black Sea areas, First Break,13, p. 103- 108.","Săndulescu, M., Kräutner, H., Borcoş, M., Năstăseanu, S., Patrulius, D., Ştefănescu, M., Ghenea, C., Lupu, M., Savu, H., Bercia, I. & Marinescu, F., 1978. Geological map of Romania, scale 1:1,000,000. Institute of Geology and Geophysics, Bucharest.","Seghedi, A., 2001. The North Dobrogea orogenic belt (Romania): a review. In: Ziegler, P.A., Cavazza, W., A.H.F. Robertson & Crasquin-Soleau, S. (Eds.) Peri-Tethys Memoir 6: Peri-Tethyan Rift/Wrench Basins and Passive Margins. Memoires du Museum National d'Histoire Naturelle, Paris, 186, 237-257.","Seghedi, A., 2008. Cadrul geologic si structural al terenurilor din jurul Marii Negre, cu privire speciala asupra marginii nord-vestice. Abstracte workshop PROFET, 23-24, Bucureşti 2008.","Seghedi A., Oaie Gh., 1993. Structural style along the Peceneaga-Camena strike-slip fault zone. Terra abstr., abstr. suppl. no 2 to Terra Nova, 5, 32, Symp. \"Structure and Tectonics at Different Crustal Levels\", Graz, 1993.","Seghedi, A., Stephenson, R., Neaga, V., Dimitriu, R., Ioane, D., Stovba, S., 2003. The Scythian Platform North of Dobrogea (România, Moldova and Ukraine). Abstracts volume, AGU-EGU International Conference, Nice 2003.","Seghedi, A., Vaida, M., Iordan, M., Verniers, J., 2005. Paleozoic evolution of the Romanian part of the Moesian Platform: an overview. Geologica Belgica, 8, 4: 99-120.","Sepic, J., Rabinovich, A.B., Sytov, V.N., 2016. Origin of the \"Odessa tsunami\" of 27 June 2014: Data assessment and numerical modeling. Geophysical Research Abstracts Vol. 18, EGU2016-7311.","Shebalin, N.V., Karnik, V., Hadzievski, D., 1974. Catalogue of Earthquakes. UNESCO, Skopje.","Spadini, G., Robinson, A.G., A.G., Cloething, S.A.P.L., 1997. Thermomechanical modelling of Black Sea formation, subsidence and sedimentation. In: Robinson A.G. (Ed.), Regional and petroleum geology of Black Sea and surounding regions. A.A.P.G. Memoir 68, 19-38","Stanciu, I., Ioane, D., 2016. Active fault systems in the Moesian Platform, Romania, as interpreted on seismicity and gravity data. In: Errami, E, Seghedi, A. (Eds.), Building bridges between Earth Scientists worldwide - a way for promoting peace and strengthening integration. CAAWG - 8th Conference of the Association of African Women in Geosciences, Sibiu, 1-7 October 2016, Abstracts, 125-129. Editura GeoEcoMar Bucuresti, ISBN 978-606-94282-0-7","Stănică, D., Stănică, M.,1988. The investigation of the deep structure of the Moesian Platform (Romania) by means of electromagnetic induction methods. Gerlands Beitrage Geophysik Leipzig, 98, 2, 155-163.","Stephenson, R., Schellart, W.P., 2010. The Black Sea back-arc basin: insights on its origin from geodynamic models of modern analogues, In: Sosson, M., Kaymakci, N., Stephenson, R., Bergerat, F., Starostenko, V. (Eds.), Sedimentary Basin Tectonics from the Black Sea and Caucasus to the Arabian Platform, Geological Society, London, Special Publications, 340, 11–21.","Şengör, A. M. C., Yılmaz, Y., Sungurlu, O., 1984. Tectonics of Mediterranean Cimmerides: Nature and Evolution of the Western Termination of Palaeo-Tethys. In; Dixon, J.E. & Robertson, A.H.F., (Eds.), The geological evolution of the eastern mediterranean, special publication of the Geological Society no. 17, 77-112, Blackwell Scientific Publications, Oxford.","Tari, E., Sahin, M., Barka, A., Reilinger, R., King, R.W., McKlusky, S., Prilepin, M., 2000. Active tectonics of the Black Sea with GPS. Earth Planets Space, 52, 747-751.","Tugolesov, D.A., Gorshkov, A.S., Meisner, L.B., Soloviev, V. and Khakhalev, E.M., 1985. Tectonics of the Mesozoic-Cenozoic deposits of the Black Sea (in Russian). Nedra, Moscow.","Ţambrea, D., 2007. Analiza de subsidenţă şi evoluţia tectonică-termică a Depresiunii Istria (Marea Neagră). Implicaţii în generarea hidrocarburilor. Abstract of PhD thesis, University of Bucharest, 116 p.","Ustaömer, T., Robertson, A.H.F., 1994. Late Palaeozoic marginal basin and subductionaccretion: the Palaoetethyan Kure Complex, Central Pontides, northern Turkey. Journal of the Geological Society, London, 151, 291-305.","Vilibrić I., Šepić, J., Ranguelov, B., Mahović, N. S., Tinti, S., 2010. Possible atmospheric origin of the 7 May 2007 western Black Sea shelf tsunami event, J. Geophys. Res., 115, C07006, 12 pp, doi:10.1029/ 2009JC005904.","Visarion, M., Săndulescu, M., Stănică, D., Veliciu, S., 1988. Contributions a la conaissance de la structure profonde de la plateforme Moesienne en Roumanie. St. Tehn.Econ., Ser. geofiz., D, 15, 211-222.","Yalciner, A., Pelinovsky, E., Talipova, T., Kurlin, A, Kozelkov, A., Zaitsev, A., 2004. Tsunamis in the Black Sea: Comparison of the historical, instrumental, and numerical data. Journal of Geophysical Research- Oceans 109 (C12), 1-13. C12023.","Yegorova,T., Gobarenko,V., 2010. Structure of the Earth's crust and upper mantle of West- and East-Black Sea Basins revealed from geophysical data and its tectonic implications. In: Sosson, M., Kaymakci, N., Stephenson, R., Bergerat, F., Starostenko, V., Sedimentary Basin Tectonics from the Black Sea and Caucasus to the Arabian Platform, Geological Society, London, Special Publications, 340, 23–42.","Yegorova, T., Gobarenko, V., Yanovskaya , T., 2013. Lithosphere structure of the Black Sea from 3-D gravity analysis and seismic tomography. Geophysical Journal International, 1-17, doi: 10.1093/gji/ggs098"]}
- Published
- 2016
- Full Text
- View/download PDF
11. MAPS OF THE GRAVITY AND MAGNETIC ANOMALIES FOR THE WESTERN BLACK SEA CONTINENTAL MARGIN (ROMANIAN-BULGARIAN SECTOR)
- Author
-
Dimitriu, Radu G, Oaie, Gheorghe, Ranguelov, Boyko, and Radichev, Radi
- Published
- 2016
- Full Text
- View/download PDF
12. A MSFD complementary approach for the assessment of pressures, knowledge and data gaps in Southern European Seas : the PERSEUS experience
- Author
-
Crise, Alessandro, Kaberi, Helen, Ruiz, Javier, Zatsepin, Andrey G., Arashkevich, Elena, Giani, Michele, Karageorgis, Aristomenis P., Prieto, Laura, Pantazi, Maria, Gonzalez-Fernandez, Daniel, Ribera d'Alcala, Maurizio, Galgani, Francois G., Gasparini, Stephane, Giannakourou, Antpnia, Gomoiu, M. T., Gubanova, Alexandra, Gucu, A. C., Gurses, O., Hanke, Georg, Hatzianestis, Ioannis, Herut, Barak, Keskin, Cetin, Hone, R., Huertas, Emma, Irisson, Jean-Olivier, Isinibilir, Melek, Jimenez, Jose A., Kalogirou, Stefanos, Kapiris, Kostas, Karamfilov, Ventzi, Kavadas, Stefanos, Kideys, Ahmet E., Kocak, Mustafa, Kondylatos, Gerasimos, Kontogiannis, C., Kosyan, R., Koubbi, P., Kuspilic, G., La Ferla, Rosabruna, Langone, Leonardo, Miserocchi, Stefano, Laroche, S., Lazar, Luminita, Lefkaditou, Evgenia George, Lemeshko, Evgeny, Machias, A., Malej, Alenka, Mazzocchi, M. G., Medinets, Volodymyr, Mihalopoulos, N., Moncheva, Snejana, Mukhanov, Vladimir, Oaie, Gheorghe, Oros, Andra, Ozturk, Ayaka Amaha, Panayotova, Marina, Prospathopoulos, Aristides M., Radu, Gheorghe, Raykov, Violin Stoyanov, Simboura, Nomiki, Reglero, Patricia, Reygondeau, Gabriel, Rougeron, N., Salihoglu, Baris, Sanchez-Vidal, Anna, Sannino, Gianmaria, Santinelli, Chiara, Secrieru, Dan, Shapiro, G., Shiganova, Tamara A., Sprovieri, M., Stefanova, Kremena, Streftaris, Nikos, Tirelli, Valentina, Tom, Moshe, Topaloglu, Bulent, Topcu, Nur Eda, Tsagarakis, Konstantinos, Tornero, Victoria, Tsangaris, Catherine, Tserpes, George, Tugrul, Suleyman, Uysal, Z., Vasile, D., Violaki, K., Xu, J., Yuksek, Ahsen, Papathanassiou, Evangelos, Vassilopoulou, Vassiliki, Durrieu de Madron, Xavier, Guieu, Cecile, Puig, Pere, Zenetos, Argyro, Andral, B., Angel, Dror, Altukhov, Denis, Ayata, Sakina-Dorothee, Aktan, Yelda, Balcioglu, Esra Billur, Benedetti, Fabio, Bouchoucha, Marc, Buia, Maria Cristina, Cadiou, J.-F., Canals, Miquel, Chakroun, M., Christou, Epaminondas, Christidis, M. G., Civitarese, G., Coatu, Valentina, Corsini-Foka, Maria, Cozzi, Stefano, Deidun, Alan, Dell'Aquila A., Dogrammatzi, A., Dumitrache, C., Edelist, Dor, Ettahiri, Omar, Fonda-Umani, Serena, and Gana, Slim
- Subjects
Nature conservation -- Law and legislation -- European Union countries ,Coastal ecology -- European Union countries ,Marine resources conservation -- Law and legislation -- European Union countries ,Coastal zone management -- Law and legislation -- European Union countries - Abstract
PERSEUS project aims to identify the most relevant pressures exerted on the ecosystems of the Southern European Seas (SES), highlighting knowledge and data gaps that endanger the achievement of SES Good Environmental Status (GES) as mandated by the Marine Strategy Framework Directive (MSFD). A complementary approach has been adopted, by a meta-analysis of existing literature on pressure/impact/knowledge gaps summarized in tables related to the MSFD descriptors, discriminating open waters from coastal areas. A comparative assessment of the Initial Assessments (IAs) for five SES countries has been also independently performed. The comparison between meta-analysis results and IAs shows similarities for coastal areas only. Major knowledge gaps have been detected for the biodiversity, marine food web, marine litter and underwater noise descriptors. The meta-analysis also allowed the identification of additional research themes targeting research topics that are requested to the achievement of GES. 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license., peer-reviewed
- Published
- 2015
13. The interplay between tectonics, sediment dynamics and gateways evolution in the Danube system from the Pannonian Basin to the western Black Sea
- Author
-
Matenco, Liviu, Munteanu, Ioan, Ter Borgh, Marten, Stanica, Adrian, Tilita, Marius, Lericolais, Gilles, Dinu, Corneliu, Oaie, Gheorghe, Matenco, Liviu, Munteanu, Ioan, Ter Borgh, Marten, Stanica, Adrian, Tilita, Marius, Lericolais, Gilles, Dinu, Corneliu, and Oaie, Gheorghe
- Abstract
Understanding the natural evolution of a river–delta–sea system is important to develop a strong scientific basis for efficient integrated management plans. The distribution of sediment fluxes is linked with the natural connection between sediment source areas situated in uplifting mountain chains and deposition in plains, deltas and, ultimately, in the capturing oceans and seas. The Danube River–western Black Sea is one of the most active European systems in terms of sediment re-distribution that poses significant societal challenges. We aim to derive the tectonic and sedimentological background of human-induced changes in this system and discuss their interplay. This is obtained by analysing the tectonic and associated vertical movements, the evolution of relevant basins and the key events affecting sediment routing and deposition. The analysis of the main source and sink areas is focused in particular on the Miocene evolution of the Carpatho-Balkanides, Dinarides and their sedimentary basins including the western Black Sea. The vertical movements of mountains chains created the main moments of basin connectivity observed in the Danube system. Their timing and effects are observed in sediments deposited in the vicinity of gateways, such as the transition between the Pannonian/Transylvanian and Dacian basins and between the Dacian Basin and western Black Sea. The results demonstrate the importance of understanding threshold conditions driving rapid basins connectivity changes superposed over the longer time scale of tectonic-induced vertical movements associated with background erosion and sedimentation. The spatial and temporal scale of such processes is contrastingly different and challenging. The long-term patterns interact with recent or anthropogenic induced modifications in the natural system and may result in rapid changes at threshold conditions that can be quantified and predicted. Their understanding is critical because of frequent occurrence during oroge
- Published
- 2016
- Full Text
- View/download PDF
14. The interplay between tectonics, sediment dynamics and gateways evolution in the Danube system from the Pannonian Basin to the western Black Sea
- Author
-
Matenco, Liviu, primary, Munteanu, Ioan, additional, ter Borgh, Marten, additional, Stanica, Adrian, additional, Tilita, Marius, additional, Lericolais, Gilles, additional, Dinu, Corneliu, additional, and Oaie, Gheorghe, additional
- Published
- 2016
- Full Text
- View/download PDF
15. A MSFD complementary approach for the assessment of pressures, knowledge and data gaps in Southern European Seas: The PERSEUS experience
- Author
-
Crise, A., Kaberi, H., Ruiz, J., Zatsepin, A., Arashkevich, E., Giani, M., Karageorgis, Aristomenis, Prieto, L., Pantazi, M., Gonzalez-fernandez, D., D'Alcala, M. Ribera, Tornero, V., Vassilopoulou, V., Durrieu De Madron, Xavier, Guieu, C., Puig, P., Zenetos, A., Andral, Bruno, Angel, D., Altukhov, D., Ayata, S. D., Aktan, Y., Balcioglu, E., Benedetti, F., Bouchoucha, Marc, Buia, M. -c., Cadiou, Jean-francois, Canals, M., Chakroun, M., Christou, E., Christidis, M. G., Civitarese, Giuseppe, Coatu, V., Corsini-foka, M., Cozzi, S., Deidun, A., Dell'Aquila, A., Dogrammatzi, A., Dumitrache, C., Edelist, D., Ettahiri, Omar, Fonda-umani, S., Gana, S., Galgani, Francois, Gasparini, S., Giannakourou, A., Gomoiu, M. -t., Gubanova, A., Gucu, Ali-cemal, Gurses, Ozgur, Hanke, G., Hatzianestis, I., Herutx, B., Hone, R., Huertas, E., Irisson, J. -o., Isinibilir, M., Jimenez, J. A., Kalogirou, S., Kapiris, K., Karamfilov, Ventzi, Kavadas, S., Keskin, G., Kideys, Ahmet, Kocak, M., Kondylatos, G., Kontogiannis, C., Kosyan, R., Koubbi, Philippe, Kuspilic, G., La Ferla, R., Langone, L., Laroche, Sophie, Lazar, Luminita, Lefkaditou, E., Lemeshko, I. E., Machias, A., Malej, A., Mazzocchi, M. -g., Medinets, Volodymyr, Mihalopoulos, N., Miserocchi, S., Moncheva, Snejana, Mukhanov, V., Oaie, Gheorghe, Oros, A., Ozturk, A. A., Ozturk, B., Panayotova, M., Prospathopoulos, A., Radu, G., Raykov, V., Regiero, P., Reygondeau, G., Rougeron, Natacha, Salihoglu, B., Sanchez-vidal, A., Sannino, G., Santinelli, C., Secrieru, D., Shapiro, G., Simboura, N., Shiganova, Tamara, Sprovieri, M., Stefanova, Kremena, Streftaris, N., Tirelli, V., Tom, Moshe, Topaloglu, B., Topcu, N. E., Tsagarakis, K., Tsangaris, C., Tserpes, G., Tugrul, S., Uysal, Z., Vasile, Daniela, Violaki, K., Xu, J., Yuksek, Ahsen, Papathanassiouh, E., Crise, A., Kaberi, H., Ruiz, J., Zatsepin, A., Arashkevich, E., Giani, M., Karageorgis, Aristomenis, Prieto, L., Pantazi, M., Gonzalez-fernandez, D., D'Alcala, M. Ribera, Tornero, V., Vassilopoulou, V., Durrieu De Madron, Xavier, Guieu, C., Puig, P., Zenetos, A., Andral, Bruno, Angel, D., Altukhov, D., Ayata, S. D., Aktan, Y., Balcioglu, E., Benedetti, F., Bouchoucha, Marc, Buia, M. -c., Cadiou, Jean-francois, Canals, M., Chakroun, M., Christou, E., Christidis, M. G., Civitarese, Giuseppe, Coatu, V., Corsini-foka, M., Cozzi, S., Deidun, A., Dell'Aquila, A., Dogrammatzi, A., Dumitrache, C., Edelist, D., Ettahiri, Omar, Fonda-umani, S., Gana, S., Galgani, Francois, Gasparini, S., Giannakourou, A., Gomoiu, M. -t., Gubanova, A., Gucu, Ali-cemal, Gurses, Ozgur, Hanke, G., Hatzianestis, I., Herutx, B., Hone, R., Huertas, E., Irisson, J. -o., Isinibilir, M., Jimenez, J. A., Kalogirou, S., Kapiris, K., Karamfilov, Ventzi, Kavadas, S., Keskin, G., Kideys, Ahmet, Kocak, M., Kondylatos, G., Kontogiannis, C., Kosyan, R., Koubbi, Philippe, Kuspilic, G., La Ferla, R., Langone, L., Laroche, Sophie, Lazar, Luminita, Lefkaditou, E., Lemeshko, I. E., Machias, A., Malej, A., Mazzocchi, M. -g., Medinets, Volodymyr, Mihalopoulos, N., Miserocchi, S., Moncheva, Snejana, Mukhanov, V., Oaie, Gheorghe, Oros, A., Ozturk, A. A., Ozturk, B., Panayotova, M., Prospathopoulos, A., Radu, G., Raykov, V., Regiero, P., Reygondeau, G., Rougeron, Natacha, Salihoglu, B., Sanchez-vidal, A., Sannino, G., Santinelli, C., Secrieru, D., Shapiro, G., Simboura, N., Shiganova, Tamara, Sprovieri, M., Stefanova, Kremena, Streftaris, N., Tirelli, V., Tom, Moshe, Topaloglu, B., Topcu, N. E., Tsagarakis, K., Tsangaris, C., Tserpes, G., Tugrul, S., Uysal, Z., Vasile, Daniela, Violaki, K., Xu, J., Yuksek, Ahsen, and Papathanassiouh, E.
- Abstract
PERSEUS project aims to identify the most relevant pressures exerted on the ecosystems of the Southern European Seas (SES), highlighting knowledge and data gaps that endanger the achievement of SES Good Environmental Status (GES) as mandated by the Marine Strategy Framework Directive (MSFD). A complementary approach has been adopted, by a meta-analysis of existing literature on pressure/impact/knowledge gaps summarized in tables related to the MSFD descriptors, discriminating open waters from coastal areas. A comparative assessment of the Initial Assessments (IAs) for five SES countries has been also independently performed. The comparison between meta-analysis results and IAs shows similarities for coastal areas only. Major knowledge gaps have been detected for the biodiversity, marine food web, marine litter and underwater noise descriptors. The meta-analysis also allowed the identification of additional research themes targeting research topics that are requested to the achievement of GES.
- Published
- 2015
- Full Text
- View/download PDF
16. Identified gaps on MSFD assessment elements
- Author
-
Laroche Sophie (IFREMER, Andral Bruno (IFREMER, Cadiou Jean-François (IFREMER, Pantazi Maria (HCMR, Gonzalez Fernandez Daniel (JRC IES, Vasile Daniela (GEOECOMAR, Vasilopoulou Vassiliki Celia (HCMR, Hanke Georg (JRC IES, Secrieru Dan (GEOECOMAR, Traian Gomoiu Marian (GEOECOMAR, Oaie Gheorghe (GEOECOMAR, Begun Tatiana (GEOECOMAR, Galgani François (IFREMER, Rougeron Natacha (IFREMER, Lorance Pascal (IFREMER, Tsangaris Catherine (HCMR, Aristides Prospathopoulos (HCMR, Symboura Nomiki (HCMR, Kontogiannis Charilaos (HCMR, Tsagarakis Konstantinos (HCMR, Giannakourou Antonia (HCMR, Christou Epaminondas (HCMR, Boicenco Laura (NIMRD, Dumitrache Camelia (NIMRD, Luminita, Lazar, Oros Andra (NIMRD, Coatu Valentina (NIMRD, Radu Gheorghe (NIMRD, and Moncheva Snejana (IOBAS
- Published
- 2013
- Full Text
- View/download PDF
17. GEOECOMAR ACTIVITIES DEDICATED TO EDUCATION AND PROMOTION OF EARTH SCIENCES.
- Author
-
SEGHEDI, ANTONETA, OAIE, GHEORGHE, RĂDAN, SILVIU, BEGUN, TATIANA, and RĂDULESCU, VLAD
- Subjects
MARINE ecology ,EARTH sciences ,GEOPARKS ,MARINE biology ,SCHOOL field trips - Abstract
Education was an objective of NRDI GeoEcoMar since its foundation, in order to attract young students to research through organizing various scientific meetings, summer schools, coordinating Master and PhD theses, etc. As European Centre of Excellence for Environmental and Geoecological Studies on River - Delta - Sea Systems in Europe - EuroGeoEcoCentre, during 2003-2006 the institute organized summer schools in the Danube Delta in order to train students from Romania and European countries in the sedimentology of terrestrial and marine systems. Since 2013, annual programs of education and internship for undergraduate students are run by the National Center for Monitoring and Warning on Marine Natural Hazards - Black Sea Security System - in Constanţa. Activities for schools and the general public started in 2010, with public conferences, temporary and travelling exhibitions, as well as various events. Such activities increased between 2016-2017, when a project dedicated to education and promotion of earth sciences was run by the institute. The educational program included educational activities for various types of target audience, activities of popularization and promotion of geological and paleontological sites in two Romanian geoparks, promotion of results accomplished by GeoEcoMar in earth sciences, ecology, marine biology, etc. The educational program developed was structured as education in schools, internship for students and geological literacy of the general public. For education in primary and secondary schools, ten lesson plans on earth sciences were elaborated, with associated hands-on activities. A 5 days field trip in Dobrogea was organized for undergraduate students, while various activities and events were proposed for the general public: public conferences, geological field trips, the Day of Open Doors at GeoEcoMar, Earth Science Week, the School Differently and workshops for children. Geological education is a necessity in Romania, especially as earth sciences do not have an adequate public presence and geological literacy of people is rather low. As geology is no longer part of the school curricula for almost 20 years, except some basic concepts included in the geography programs, education and promotion of earth sciences has to continue, which implies the existence of adequate financial and human resources. [ABSTRACT FROM AUTHOR]
- Published
- 2018
18. The National Institute of Research and Development for Marine Geology and Geoecology – GeoEcoMar: Twenty years of scientific activity
- Author
-
PANIN, Nicolae, OAIE, Gheorghe, and STĂNICĂ, Adrian
- Abstract
The National Institute of Research and Developmentfor Marine Geology and Geoecology – GeoEcoMar was created in 1996 according to the Governmental Decision 1315/25.11.1996, by reorganizing the Romanian Centre for Marine Geology and Geo-ecology CRGGM (founded in 1993). Presently the National Institute of Marine Geology and Geoecology - GeoEcoMar is the Romanian pole of excellence for research in marine, coastal and fluvial geology, geophysics and geo-ecology, as well as an international reference centre for Marine and Earth Sciences in the Black Sea region. In the last twenty years, GeoEcoMar has experienced a continuous scientific and financial growth, both at national and international levels. Since 1996 an “institute of national interest” due to its technical potential and scientific performances, GeoEcoMar`s main objective is to perform complex and multidisciplinary researches of sea – delta – river macro-systems, having as key focus the Black Sea – Danube Delta – Danube River system.
- Published
- 2012
- Full Text
- View/download PDF
19. Volcaniclastic turbidites of the Coşuştea Nappe: a record of Late Cretaceous arc volcanism in the South Carpathians (Romania)
- Author
-
Seghedi, Antoneta, primary and Oaie, Gheorghe, additional
- Published
- 2014
- Full Text
- View/download PDF
20. Upper Holocene Calcareous Nannoplankton of the NW Black Sea
- Author
-
MELINTE, Mihaela-Carmen and OAIE, Gheorghe
- Subjects
NW Black Sea ,calcareous nannoplankton ,paleoecology ,Upper Holocene - Abstract
The investigations focused on two profiles from the Black Sea, placed in front of the Portiţa Mouth and in the south-eastern part of the Sahalin Island. Up to 40 m water depth, the samples from the Portiţa profile contain only reworked Mesozoic and Cenozoic calcareous nannoplankton taxa. In the same profile, the bloom of the calcareous nannoplankton species Emiliania huxleyi, together with abundant benthic foraminiferal taxa, were recorded in the first 11 cm of sediments, at below 40 m water depth. All the samples collected in the SE of Sahalin Island contain only Mesozoic and Cenozoic reworked calcareous nannoplankton taxa; no marine assemblages in situ were remarked.
- Published
- 2009
- Full Text
- View/download PDF
21. The Relation between the Grain Size Composition of the Sediments from the NW Black Sea and their Total Organic Carbon (TOC) Content
- Author
-
SECRIERU, Dan and OAIE, Gheorghe
- Subjects
NW Black Sea, sediments, grain size, TOC - Abstract
The relation between the grain size composition TOC (total organic carbon) concentration was examined by linear and non-linear regression analysis of analytical data for more than 500 sediment samples from the NW Black Sea. A significant dependency of the TOC concentration on the percentages of clay and especially the
- Published
- 2009
- Full Text
- View/download PDF
22. MAPS OF THE GRAVITY AND MAGNETIC ANOMALIES FOR THE WESTERN BLACK SEA CONTINENTAL MARGIN (ROMANIAN-BULGARIAN SECTOR).
- Author
-
Dimitriu, Radu G., Oaie, Gheorghe, Ranguelov, Boyko, and Radichev, Radi
- Subjects
- *
GEOMAGNETISM , *GRAVITY , *GEODYNAMICS , *OFFSHORE structures , *CONTINENTAL margins - Abstract
Unified maps reflecting the regional morphology of gravity and geomagnetic fields across a wide sector of the western Black Sea continental margin, summing over 65,000 sq.km of which about 47,000 sq.km are offshore, were obtained by integrating gravity and magnetic data recently measured off the Romanian and Bulgarian coast with similar historic data, independently measured onshore during the previous decades. Thus, the resulted composite map of gravity anomaly compiles the Bouguer and Free Air gravity anomalies obtained from measurements carried on onshore and respectively offshore. Unlike this, the composite map of magnetic anomaly integrates magnetic total field data acquired recently offshore and by airborne measurements over Romanian onshore several decades ago, with magnetic vertical component data measured on Bulgarian dryland. The geophysical composite maps resulted are advanced tools for the future researches and modellings aiming to decipher the deep geological structure of the western Black Sea continental margin, of the processes that govern its past and actual geodynamics. [ABSTRACT FROM AUTHOR]
- Published
- 2016
23. LATE PLEISTOCENE - HOLOCENE PALEOENVIRONMENTAL CHANGES FROM THE ROMANIAN BLACK SEA SHELF INFERRED BY MICROFAUNAL AND ISOTOPE FLUCTUATIONS.
- Author
-
Briceag, Andrei, Yanchilina, Anastasia, Ryan, William B. F., Oaie, Gheorghe, and Melinte-Dobrinescu, Mihaela C.
- Subjects
PLEISTOCENE Epoch ,PALEOENVIRONMENTAL studies ,HOLOCENE Epoch ,GEOLOGICAL basins ,CALCIUM carbonate - Abstract
The transition of the Black Sea from an inland lake to a marine basin during the last glacial/deglacial episode is still generating discussion in the scientific community. Qualitative and quantitative study of the ostracod and foraminiferal assemblages coupled with isotopic (oxygen) and calcium carbonate (CaCO
3 ), were performed on an AMS14 C dated core, 09 SG 13, collected from the Romanian Black Sea outer shelf (200 m water depth). The present study documents the changes that occur in the Black Sea from the Last Glacial Maximum towards the Present. In the 09 SG 13 core, two lithological units, respectively the youngest Unit 1 (The Coccolith mud) and the oldest Unit 3 (The Lacustrine lutite), were identified. The Unit 2 (The Sapropel Mud) is missing. In the two lithological units identified, four ecobiozones are distinguished based on changes in microfossil assemblages, which reveal climate shifts and oscillations of salinity. The Last Glacial Maximum period is characterized by stable conditions recorded by homogenous ostracod assemblages. However, the onset of the Fennoscandian Meltwater Pulses changed drastically the hydrological conditions of the basin, by lowering the salinity and allowing the fresh water ostracods to thrive. These fresh water pulses are mirrored in the sedimentary record by the reddish-brown clay deposition. This study documents also a core from the shallow area of the Black Sea inner shelf, MN 103_04 (78 m water depth). Based on macro and microfauna assemblages, this core reveals sea level changes that took place during the last approximately 6,000 yr BP. [ABSTRACT FROM AUTHOR]- Published
- 2016
24. The dynamic significance of the grain size of sediments transported and deposited by the Danube
- Author
-
OPREANU, Gicu, OAIE, Gheorghe, and PĂUN, Florian
- Subjects
bimodal character, cumulative curve, mean size, standard deviation, skewness, Passega Diagram - Abstract
The paper is based on grain size analyses as well as on the macroscopic lithologic description of a large number of samples collected from the bottom of the Danube. Unlike previous papers on sedimentology, which were limited to the textural characterisation of sediments from the various sectors of the Danube, this paper attempts a new approach of the sediment dynamics. The interpretation of histograms, of cumulative curves or of the Passega diagram is used in the attempt to explain the dynamic and genetic reasons for the presence of a particular type of sediment in locations characterised by different environmental energy conditions.
- Published
- 2007
- Full Text
- View/download PDF
25. The Geoenvironmental status of the Razelm – Sinoie lacustrine complex at the beginning of the 21st century (Invited Paper)
- Author
-
Dimitriu, Radu George, Oaie, Gheorghe, Gomoiu, Marian Traian, Begun, Tatiana, Szobotka, Stefan, Radan, Sorin, and Fulga, Costina
- Published
- 2007
- Full Text
- View/download PDF
26. Black Sea Basin: Sediment Types and Distribution, Sedimentation Processes
- Author
-
OAIE, Gheorghe, SECRIERU, Dan, and SHIMKUS, Kazimiras
- Subjects
sediment types ,Black Sea ,sedimentology ,sedimentation processes - Abstract
The paper presents a part of the scientific activity of GEOECOMAR team during the IAEA project RER 2/003 Marine Environmental Assessment of the Black Sea Region, on board of R/V “Prof. Vodyanitskyi” and in laboratories. The Black Sea presents different sedimentological and geochemical characteristics in the eastern and western sub-basins. Whole sections of the Upper and Middle Holocene sediments were revealed in most cores recovered from the whole Black Sea basin. Scientific methods (grain size, X ray investigations, rate of sedimentation and radiogenic measurements, geochemistry characteristics of water and sediments) showed the general distribution of the bottom sediments, at the surface and downward, syn- and postdepositional sedimentary structures, lithological and geochemical compositions. As a result of detailed sedimentological studies in the whole Black Sea basin, for the first time a complete picture of the current grain size composition in the Upper Holocene sediment sections, was obtained. The data show that the deposits were accumulated in rather variable lithodynamic conditions (e.g. shelf, continental rise, abyssal plain). Processes of redeposition (e.g. turbiditic currents) have played an important role. At some stages "zero sedimentation" dominated, and during other periods scanty terrigenous material was accumulated.
- Published
- 2004
- Full Text
- View/download PDF
27. Mare Nigrum - The First Romanian Multidisciplinary Research Vessel in Romania
- Author
-
OAIE, Gheorghe and FLORESCU, Stefan
- Subjects
endurance ,Mare Nigrum ,prow ,bridge ,multibeam system ,stern - Abstract
In 1998, GEOECOMAR started the transformation of the SOMES trawler into the first Romanian multidisciplinary research vessel in Romania. In 2002, the vessel, renamed MARE NIGRUM, was inaugurated by the Romanian Prime minister and by the Secretary of State for Scientific Research. Between 2002 and 2004, Mare Nigrum performed many cruises through national research programmes such as MENER and CERES, and for private companies. In 2005, Mare Nigrum will start to participate in other national and international projects (e.g. ASSEMBLAGE)
- Published
- 2004
- Full Text
- View/download PDF
28. A COMPLEX AUTOMATIC MARINE MEASUREMENT SYSTEM IN THE BLACK SEA.
- Author
-
Rӑdulescu, Vlad, Oaie, Gheorghe, and Vasile, Raluca
- Abstract
In this paper we are presented the first early-warning system from the Black Sea-EUXINUS network. This represents a complex automatic marine measurement system, Consisting of measuring instruments installed in key points of the western Black Sea, to monitoring coastal wave along Romanian-Bulgarian border. [ABSTRACT FROM AUTHOR]
- Published
- 2019
29. European multidisciplinary seafloor and water-column observatory (EMSO): Power and Internet to European waters
- Author
-
Best, Mairi M. R., primary, Favali, Paolo, additional, Beranzoli, Laura, additional, Cannat, Mathilde, additional, Cagatay, M. Namik, additional, Danobeitia, Juan Jose, additional, Delory, Eric, additional, de Stigter, Henko, additional, Ferre, Benedicte, additional, Gillooly, Mick, additional, Grant, Fiona, additional, Hall, Per O. J., additional, Lykousis, Vasilios, additional, Mienert, Juergen, additional, de Miranda, Jorge Miguel Alberto, additional, Oaie, Gheorghe, additional, Radulescu, Vlad, additional, Rolin, Jean-Francois, additional, Ruhl, Henry, additional, and Waldmann, Christoph, additional
- Published
- 2014
- Full Text
- View/download PDF
30. Deep structure of the foreland in the East Carpathian bend zone and the geological evolution of the Danube Delta basement
- Author
-
Dimitriu, Radu George, Seghedi, Antoneta, Ioane, Dumitru, and Oaie, Gheorghe
- Published
- 2003
- Full Text
- View/download PDF
31. AN INTERDISCIPLINARY GEO-ENVIRONMENTAL APPROACH OF GOLOVIŢA- ZMEICA AREA (SOUTHERN DANUBE DELTA, ROMANIA)
- Author
-
Dimitriu, Radu G, Oaie, Gheorghe, Ştefan Szobotka, and Paraschiv, Gabriela M
- Published
- 2003
- Full Text
- View/download PDF
32. Time Series Analysis of Recent (1 kyr) euxinic sediments of the Black Sea: A case study
- Author
-
Duliu, Octavian G., primary, Oaie, Gheorghe, additional, and Preoteasa, Florentin, additional
- Published
- 2013
- Full Text
- View/download PDF
33. A new insight on the water level dynamics of the Danube Delta using a high spatial density of SAR measurements
- Author
-
Poncos, Valentin, primary, Teleaga, Delia, additional, Bondar, Constantin, additional, and Oaie, Gheorghe, additional
- Published
- 2013
- Full Text
- View/download PDF
34. LOWER DANUBE RIVER: CHARACTERIZATION OF SEDIMENTS AND POLLUTANTS.
- Author
-
OAIE, GHEORGHE, SECRIERU, DAN, BONDAR, CONSTANTIN, SZOBOTKA, ŞTEFAN, DUŢU, LAURA, STĂNESCU, ION, OPREANU, GICU, DUŢU, FLORIN, POJAR, IULIAN, and MANTA, TANISLAV
- Subjects
RIVER sediments ,POLLUTANTS - Abstract
Sediment-associated pollutants are transported by rivers as suspended load and bed load under specific flow conditions. In particular conditions part of pollutants (e.g. metals) could be incorporated into the alluvial deposits, and over time, became a major source of the river contamination. The hydrology, the riverbed morphology and the characteristics and quality of river sediments of the Lower Danube have been studied yearly in the 2009 - 2013 period using different methodologies (single and multi-beam bathymetry, ADCP measurements of current velocity and suspended load, sediment sampling using grabs and corers, laboratory analyses). Yearly measurements and sampling have been carried out on more than 70 cross-sections on the Lower Danube course, between km 1072, where the river enters the Romanian territory, and the Black Sea. From each cross-section, one to three sediments samples were analysed for determining the sediment grain size, mineralogy and chemical composition using different laboratory methodologies, as X-ray fluorescence and AAS techniques for Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Ti, V and Zn. The obtained multiannual data allowed identifying the main anthropogenic pollution by heavy metals zones along the river. The Romanian tributaries of the Danube have been sampled and analysed separately for evaluating their role in the general environmental state of the region. The influence of the Danube River water, sediment and pollutants supply to the NW Black Sea has been also studied. [ABSTRACT FROM AUTHOR]
- Published
- 2015
35. LATE HOLOCENE MICROFAUNAL AND NANNOFLORAL ASSEMBLAGES OF THE NW BLACK SEA.
- Author
-
BRICEAG, Andrei, STOICA, Marius, OAIE, Gheorghe, and MELINTE-DOBRINESCU, Mihaela C.
- Subjects
HOLOCENE Epoch ,OSTRACODA - Abstract
This study describes the fluctuation pattern in Late Holocene microfaunal (i.e. foraminifera and ostracods) and nannofloral assemblages of two cores collected from the Romanian Black Sea shelf, at a water depth of 28 and 66 m, respectively. The lithology of the cores is mainly characterised by blackish muds, alternating with thin, centimetres-thick sand and coquina layers. The microfaunas are dominated by brackish foraminiferal and ostracod assemblages that are still common in the actual Black Sea communities, living nowadays at water salinity lower than 18 ‰. In the shallower water Site EF 08-01, the abundance ratio between Caspian and Mediterranean ostracods is 0.7, while in the deeper water Site BS 08-055, the abundance ratio between Caspian and Mediterranean ostracods is 0.01. These data argue for the dominance of Mediterranean ostracod fauna with lower abundance in shallower environments of the Black Sea and with a very high abundance in the deeper parts of the internal shelf, i.e., at a water depth of 66 m. Based on the calcareous nannoplankton fluctuation, four Nannofloral Intervals were identified, which indicate a gradual salinity increase of the surface waters during the deposition of the Late Holocene Shallow Unit. In the same interval, the benthic microfaunas (ostracods and foraminifers) argue for a more stable salinity environment in the two studied cores from the Black Sea inner shelf [ABSTRACT FROM AUTHOR]
- Published
- 2012
36. EMSO.
- Author
-
BEST, MAIRI, FAVALI, PAOLO, BERANZOLI, LAURA, CANNAT, MATHILDE, CAGATAY, NAMIK, DAÑOBEITIA, JUAN JOSE, DELORY, ERIC, DE STIGTER, HENKO, FERRÉ, BÉNÉDICTE, LLOOLY, MICK GI, GRANT, FIONA, HALL, PER O. J., LYKOUSIS, VASILIOS, MIENERT, JUERGEN, DE MIRANDA, JORGE MIGUEL ALBERTO, OAIE, GHEORGHE, RADULESCU, VLAD, ROLIN, JEAN-FRANÇOIS, RUHL, HENRY, and WALDMANN, CHRISTOPH
- Subjects
OBSERVATORIES ,OCEANOGRAPHIC research ,ENVIRONMENTAL research ,ENVIRONMENTAL monitoring ,OCEAN bottom - Abstract
The article offers information on the European Multidisciplinary Seafloor and water-column Observatory (EMSO), a large-scale European Research Distributed Infrastructure of the European Strategy Forum on Research Infrastructures roadmap with the objective of real-time, long-term monitoring of environmental processes. Topics include the implementation of the project, the participating countries, the EMSO design, and how the research data will be collected and used.
- Published
- 2014
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.