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Slow and very slow landslides can cause severe economic damage to structures. Due to their velocity of propagation, it is possible to take action such as programmed maintenance or evacuation of affected zones. Modeling is an important tool that allows scientists, engineers, and geologists to better understand their causes and predict their propagation. There are many available models of different complexities which can be used for this purpose, ranging from very simple infinite landslide models which can be implemented in spreadsheets to fully coupled 3D models. This approach is expensive because of the time span in which the problems are studied (sometimes years), simpler methods such as depth‐integrated models could provide a good compromise between accuracy and cost. However, there, the time step limitation due to CFL condition (which states that the time step has to be slower than the ratio between the node spacing Δx$\Delta x$ and the physical velocity of the waves results in time increments which are of the order of one‐10th of a second on many occasions. This paper extends a technique that has been used in the past to glacier evolution problems using finite differences or elements to SPH depth‐integrated models for landslide propagation. The approach is based on assuming that (i) the flow is shallow, (ii) the rheological behavior determining the velocity of propagation is viscoplastic, and (iii) accelerations can be neglected. In this case, the model changes from hyperbolic to parabolic, with a time increment much larger than that of classic hyperbolic formulations. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Engineering (17264073) is the property of Republic of Iraq Ministry of Higher Education & Scientific Research (MOHESR) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Flood geologists linve been using tile Coconino Sandstone in the Grand Canyon to argue that a global flood rezoorked much of the plmietary geologic record. Flood geologists' arguments may seem convincing at first, but after analyzing their articles and videos tls well as the conventional geology literature, it is found t/mt the Coconino does not support a global flood. Flood geologists hai)e been largely directing their efforts toward re®ting generalized statements from critics in the popular science literature. By placing so much emphasis on finding data that could be used to refute critics, opportunities were missed to increase scient@ understanding of the Coconino. Flood geologists' filidings zoere consistently framed to argue for aqueous deposition, which they implicitly equate to global flood deposition. It is slioum flint an astronomical difference exists between the two. [ABSTRACT FROM AUTHOR]

Hyperspectral imaging is gaining widespread use in the resource sector, with applications in mineral exploration, geometallurgy and mine mapping. However, the sheer size of many hyperspectral datasets (>1 Tb) and associated correction, visualisation and analysis challenges can limit the integration of this technique into time-critical exploration and mining workflows. In this contribution, we propose and demonstrate a novel open-source workflow for rapidly processing hyperspectral data acquired on exploration drillcores. The resulting products are adaptable to the varied needs of geologists, geophysicists and geological engineers, facilitating better integration of hyperspectral data during decision making. These tools are applied to process hyperspectral data of 6.4 km of exploration drill cores from Stonepark (Ireland), Collinstown (Ireland) and Spremberg (Germany). The results are presented via an open-source web-viewing platform that we have developed to facilitate easy on and off-site access to hyperspectral data and its derivatives. We suggest that maximum value can be extracted from hyperspectral data if it is acquired shortly after drilling and processed on-site in real time, so that results can be quickly validated and used to inform time-critical decisions on sample selection, geological interpretation (logging) and drillhole continuation or termination. This timeliness and accessibility is key to ensure rapid data availability for decision makers during mineral exploration and exploitation. Finally, we discuss several remaining challenges that limit the real-time integration of hyperspectral drill core scanning data, and explore some opportunities that may arise as these rich datasets become more widely collected. [ABSTRACT FROM AUTHOR]

3D seismic attributes analysis can help geologists and mine developers associate subsurface geological features, structures, faults, and ore bodies more precisely and accurately. The major influence of this application is to evaluate the usage of the 3D seismic attributes analysis in gold mine planning. For this, we evaluate the novel theory of complex T-spherical hesitant fuzzy (CTSHF) sets and their operational laws. Furthermore, we derive the CTSHF Aczel–Alsina weighted power averaging (CTSHFAAWPA) operator, CTSHF Aczel–Alsina ordered weighted power averaging (CTSHFAAOWPA) operator, CTSHF Aczel–Alsina weighted power geometric (CTSHFAAWPG) operator, and CTSHF Aczel–Alsina ordered.com weighted power geometric (CTSHFAAOWPG) operator. Some properties are also investigated for the above operators. Additionally, we evaluate the problems of 3D seismic attributes analysis to mine planning under the consideration of the proposed operators, for this, we illustrate the problem of the multi-attribute decision-making (MADM) technique for the above operators. Finally, we demonstrate some examples for making the comparison between prevailing and proposed information to improve the worth of the derived operators. [ABSTRACT FROM AUTHOR]

The biostratigraphic data accumulated to date on the subdivision of the Phanerozoic marine sequences make it possible to interpret the evolution features of not only low-ranking biotic taxa but also paleocommunities (assemblages), which can be considered as biotic groupings historically formed under certain conditions. Examples of their evolution stages in various Geomerida marine ecosystems are given. The opinion is stated about the need to intensify the research on this topic with the involvement of both geologists and biologists. [ABSTRACT FROM AUTHOR]

Numerical modelling of coaxial deep borehole heat exchangers (DBHEs) can be resource-intensive. Simpler, transparent analytical models and nomograms would be valuable to developers and geologists for evaluating thermal output. In this paper, Beier's published analytical computational model was used to produce nomograms of geothermal heat yield by systematically varying the DBHE depth and rock thermal conductivity, while assuming two generic simplified DBHE designs, a geothermal gradient of 25°C km−1 and a fluid circulation rate of 5 l s−1. Continuous 25 year heat yields from a 1000 m DBHE range from 27.3 to 54.8 kW for thermal conductivities of 1.6–3.6 W m−1 K−1. For a 3000 m DBHE, they range from 165 to 281 kW. Effective borehole thermal resistance (Rb,eff) increases strongly as DBHE depth increases due to internal heat transfer between the upflow and downflow elements. Simulations correspond well with results from industry-standard Earth Energy Designer software for a shallow 200 m coaxial BHE. They modestly underestimate the OpenGeoSys numerical modelled thermal yields by 2–4% for DBHE in the depth range 1000–3000 m. Modelled temperature evolution closely approximates an analytical 'line heat source' approach, implying that simpler analytical approaches are plausible for DBHE simulation. Future research should focus on methods for forward quantification of Rb,eff. [ABSTRACT FROM AUTHOR]

This paper reviews the current state of the art in relation to geotechnical design in unsorted till deposits, commonly called boulder clays by engineers or diamictons by geologists, generally taking the topics discussed by Professor Eamon Hanrahan in his seminal work of 1977 on Irish tills. These topics include the permeability, stiffness and consolidation characteristics of these deposits, together with their undrained and drained behaviour. The geological background to the deposition of these tills is discussed and the available information on the presence of interglacial soils around the country is presented. Where possible, practical experience from working with these deposits is compared with predictions made from field or laboratory test results: for example, in settlement assessment of foundations, slope stability and in earthworks. Whilst most of Ireland is covered with stony boulder clays, which is the main topic of this paper, the geotechnical parameters of a fine-grained till encountered on the east coast, known as Irish Sea Till or colloquially as Macamore Clay, are discussed and the implications of this on slope stability is investigated. [ABSTRACT FROM AUTHOR]

Along the east coast of the South Island New Zealand, large deposits of loess formed in the Quaternary Period. In the late 1880s and early 1890s, an amateur geologist, John Hardcastle, observed the deposits around his hometown of Timaru. He formulated a theory that their origins were glacial and that as these deposits formed, they left a register of climate. This was the first time that a connection between loess deposits and climate was made, and his discovery is still recognised across the world today. However, the deposits themselves are hardly acknowledged. [ABSTRACT FROM AUTHOR]

Copyright of China Mining Magazine is the property of China Mining Magazine Co., Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

We describe Phalacrocorax bakonyiensis n. sp. an extinct member of the cormorants (Phalacrocoracidae). The fossil was found in 2021 by geologist János Futó in the sediments of a small cave cavity on the side of Várhegy in Sümeg, a part of the Bakony Mountains of West Hungary, where Late Miocene (MN11–12) vertebrate fossils have been found in the past decades. The total number of bone fragments collected was 14, of which only three can be identified. Two of these belong to adults and one, due to its poor preservation and size, to a very young specimen. [ABSTRACT FROM AUTHOR]

The facies distribution of a reservoir is one of the biggest concerns for geologists, geophysicists, reservoir modelers, and reservoir engineers due to its high importance in the setting of any reliable decisionmaking/optimization of field development planning. The approach for parameterizing the facies distribution as a random variable comes naturally through using the probability fields. Since the prior probability fields of facies come either from a seismic inversion or from other sources of geologic information, they are not conditioned to the data observed from the cores extracted from the wells. This paper presents a regularized element-free Galerkin (R-EFG) method for conditioning facies probability fields to facies observation. The conditioned probability fields respect all the conditions of the probability theory (i.e. all the values are between 0 and 1, and the sum of all fields is a uniform field of 1). This property achieves by an optimization procedure under equality and inequality constraints with the gradient projection method. The conditioned probability fields are further used as the input in the adaptive pluri-Gaussian simulation (APS) methodology and coupled with the ensemble smoother with multiple data assimilation (ES-MDA) for estimation and uncertainty quantification of the facies distribution. The history-matching of the facies models shows a good estimation and uncertainty quantification of facies distribution, a good data match and prediction capabilities. [ABSTRACT FROM AUTHOR]

Landslides are widely understood to cause damage to the geological features and the surrounding environment. Our study focuses on the northern region of the Karangsambung-Karangbolong Geopark (KKNG), characterized by diverse lithology and multi-phase tectonics. This study aims to explore (i) landslide susceptibility assessment, (ii) geomorphological characteristics and distribution of landslide susceptibility, and (iii) identification of landslide impacts on geosites. We mapped morphogenesis, morphology, materials, and processes to understand the geomorphological context, identifying three primary landforms: structural, pediments, and fluvial. For landslide susceptibility mapping, we used the XGBoost algorithm with cross-validation and utilized the area under the receiver operating characteristic curve (AUROC) for model validation. The XGBoost model revealed a high susceptibility classification for 10 geosite points. Landslides have negative impacts, such as Olistoliths of coral limestones, Exotic-blocks of chert, and calcareous red claystone that change landforms and damage outcrops. Nevertheless, some landslides have positive impacts on the geosite, such as Exoticblocks of phyllites, and Exotic-blocks of pillow lava and radiolarian chert, because landslides can reveal fresher outcrops and rock structures, and the outcrop area becomes larger. Landslide mapping has successfully identified geosites that are highly vulnerable and have adverse impacts, especially those with certain lithological characteristics. This research on viewing disaster as a harmful process has evolved into a more holistic view of the disaster. This view includes various positive aspects that involve understanding the complex interactions between geology and geomorphology towards the geosite. By understanding the relationship between geomorphologic features (morphology, material, process, morpho-arrangement) and landslide occurrence, effective management strategies can be implemented to develop geological heritage further. [ABSTRACT FROM AUTHOR]

The coexistence of mining, geoparks, and conservation is an ongoing discussion for the implementation and development of UNESCO Global Geoparks (UGGps). The Seridó UGGp provides a classic example where mining plays a fundamental role in unveiling geological heritage, showcasing positive relationships between mining and the establishment of sustainable territories based on geoconservation. The aim of this paper is to investigate, within two geosites of the Seridó UGGp--Mina Brejuí and Açude Boqueirão--how geological heritage has been showcased in active mines, correlated with cultural mining heritage, and utilized in geotourism and geoeducation. The paper utilizes adapted geological heritage inventories and valuing techniques, integrating cultural aspects of the mining landscape to provide detailed insights into the complex areas of the geosites. Both geosites have been the sites of regionally significant Ediacaran-Cambrian magmatic-hydrothermal deposits since the early 20th century, yielding metallic and non-metallic raw materials during the World Wars up to the present days. The Mina Brejuí geosite boasts one of the best exposures of W-Mo skarn mineralization in South America within its underground galleries. Açude Boqueirão is a mining district with several types of quarries and mines, and its geoheritage is linked to the initial descriptions of the Borborema regional pegmatitic province with Cambrian Ta-Nb, Li-Be, gemstones, and ornamental deposits, and also for the rare deposit of blue tourmaline gemstone. Particularly, the Boqueirão site requires valorization interventions, as its rich mining heritage is threatened by the expansion of the energy sector and illegal artisanal mining. Active mining operations could present a plethora of opportunities that encompass the geopark's concepts of conservation, tourism, and education. Inventories of mining heritage in geoparks serve as alternative sources for geotouristic routes. [ABSTRACT FROM AUTHOR]

Geological heritage sites (geosites) have various properties such as accessibility, geometry, and vulnerability, as well as age. It is reasonable to distinguish the geological ages related to the content of geosites (e.g., Early Ordovician or Valanginian) from the technical ages related to the physical appearance (forms) of geosites (e.g., Late Pleistocene, Prehistoric, or 21st century). This study examines 17 geosites known from the Western Caucasus--a geologically-rich area of the Greater Caucasus orogen. The revision and the update of the stratigraphical information allow to establish their geological ages. The technical ages are defined as old (before the 19th century), historical (19th-20th centuries), or young (the beginning of the 21st century). The results show that the analyzed geosites shed light on the lengthy time span (from the late Proterozoic to the Quaternary), and the Cisuralian-Early Cretaceous sedimentary succession of the study area is represented with significant completeness. Technically, the geosites are chiefly old, although the historical and young features are also common. The outcomes of this study do not only systematize the knowledge of the ages of the geosites from the Western Caucasus, but also have several practical implications (for instance, the conservation of the technically young geosites is the priority, and the geological ages are important to arrange the geosites logically for educational and touristic excursions). [ABSTRACT FROM AUTHOR]

In this study, we thoroughly explore the complexities of land resource management in Western Kenya's Nyanza Province, focusing on the evolution of land use patterns in Kajulu location, which was formerly a native reserve. Spanning pre-colonial, colonial, and post-colonial eras, our investigation aims to decipher the deep-seated impact of historical events on territorial dynamics. Employing a holistic diachronic approach, we integrate historical data with contemporary landscape metrics analysis to provide a nuanced comprehension of land management transitions. Utilizing diverse research methods such as individual and collective surveys, along with transect walks, we meticulously unravel the intricate fabric of land acquisition patterns and resource management strategies employed by the Luo people of Kajulu. Our findings reveal a compelling narrative of adaptation and transformation. Constrained by land scarcity and intensified resource competition, the Luo community in Kajulu ingeniously reshaped their traditional land organization. Transitioning from the transmission of entire exploitations to a process of repeated subdivision, they devised a complex, non-linear progression of land use patterns. To ensure food security and resource preservation, they adopted a system of land intensification grounded in production diversification, echoing Boserup's theory of agricultural intensification in response to population pressure. This culminated in a landscape characterized by remarkable heterogeneity, reflecting the aggregation of cultivated spaces over time and resonating with Malthusian concerns about population growth and resource constraints. Through our research, we underscore the profound interplay between historical legacies, adaptive strategies, and landscape heterogeneity, providing invaluable insights into the dynamic relationship between human societies and their natural environments. [ABSTRACT FROM AUTHOR]

The regions of Acheron and Parga (Epirus, Greece) are characterized by a significant geodiversity (e.g., stratigraphy, palaeontology, tectonic, geomorphology, hydrology, etc.). In this work, we have tried to create a preliminary list of the most prominent geosites of these two areas, based on bibliographical review and, predominantly, our own field observations. More specifically, we have identified and mapped a total of 28 geosites. We assessed their geological value, as well as additional values (socioeconomic and cultural values, aesthetics, as well as potential for geo-education). Upon their assessment, the area was found to be of very high geoeducational significance, whereas the geotouristic potential also is very high. Our ultimate goal is to promote the geological heritage to both geoscientists and the lay public, so as to contribute to its geo-conservation and the geo-education of locals and students/pupils. Thus, after assessment, we created a virtual field trip, in form of a webmap, where all of these geosites could be "visited" by potential geotourists, as well as geoscientists. This webmap can be updated whenever new research on additional geosites in the area is published. [ABSTRACT FROM AUTHOR]

The present study examined the extent and pattern of households' dependency on forest for fuelwood and livestock grazing and identifies, analyzed the key factors that determined the level of households' dependency and access to forest resources, and explored the role of ecotourism development in reducing the same. The study used primary data collected randomly from 300 households residing in the Buxa Tiger Reserve (BTR). The study found that the majority of households (88%) engaged in fuelwood collection, and the annual average fuelwood collection was estimated to be 1,502.8 kg. About 56.67% of households were found to be engaged in grazing activities, and on average, 2.57 adult cattle units were brought inside the forest for grazing. The regression results suggested that the education of the household head, household income, liquefied petroleum gas availability, participation in ecotourism, livestock availability, social background (caste), and the number of household labour were the key determinants of household dependency on fuelwood, while the age of the household head, family size, land holding size, participation in ecotourism, and social background (caste) significantly influenced the level of household grazing dependency on the BTR. Most households were affected due to restrictions levied on access to forest resources. Income from forest, fuelwood collection, agricultural landholding size, household dependency ratio, and forest department awareness levels were the key determinants of households affected by protected area (PA) restrictions. Household participation in ecotourism was found to be effective in reducing household dependency on BTR, but it did not adequately alleviate the impact of PA restrictions on their livelihoods. Hence, sustainable ecotourism, along with the provision of smokeless stoves and renewable energy, such as solar, could go a long way in reducing pressure on the BTR and sustainable management of the reserve. [ABSTRACT FROM AUTHOR]

This study proposed a semi-quantitative methodology for assessing the quality of the UNESCO Global Geopark (UGGp) websites. The study was based on mixed indicators (binary and ordinal) which were grouped into five dimensions (presentation, content, interactivity, usability, and special UNESCO information) and combined with multivariate assessment using Principal Component Analysis and the application of the focus group technique using Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis to propose geocommunication strategies. The evaluation matrix, comprising 36 indicators, defined three levels of development ("high", "moderate", and "emergent") and was useful for monitoring website quality and enhancing its territorial value for geotourism, geoconservation, and geoeducation. The results from 156 websites showed a predominance of "moderate development" scores (52.56%) and highlighted positive indicators, such as contact information, geotourism details, mobile compatibility, news, and the UGGp logo. This study also presented the potential of immersive technologies, such as virtual reality and 3D tours, for disseminating geoeducational content. However, there was room for the improvement in interaction and information standardization on UGGp web platforms to ensure effective communication that enriches the user experience. [ABSTRACT FROM AUTHOR]

The Sidi Bouzid escarpment is one of the geosites that present high educational and tourism values in the Safi Province, extending for several kilometers along the Atlantic coast southwest of the city of Safi, Safi Province, Marrakech-Safi region, Morocco. It offers panoramic views over the town and the Atlantic Ocean, as well as a beautiful beach much frequented by holidaymakers. The sedimentary and paleontological information preserved in the rocks that form the escarpment makes a valuable contribution to paleobiogeographic and paleoclimatic interpretations and stratigraphic correlations on a regional and global scale. This paper focused on promoting and popularizing earth sciences among students at universities, research centers, colleges, schools, and the general public by developing an educational program adapted to the Sidi Bouzid geosite. Survey was employed to collect the data, the results of which was used to evaluate the effectiveness of the educational program. The results showed that the program had a significant impact on all visitor categories since it offered visitors a holistic view of how geological processes shaped the Earth, revealing the interconnections between many components of the Earth system (geosphere, hydrosphere, atmosphere, and biosphere). [ABSTRACT FROM AUTHOR]

This paper aims to identify the geological properties of Sentono Gentong and provide a quantitative assessment of its geodiversity site in Pacitan Regency, Indonesia. This area is an integral part of the vast Gunung Sewu UNESCO Global Geopark. Rock samples and site conditions are compiled on field study. The study area consists mainly of Neogene limestone and older igneous rock. Microscopic analysis has revealed that the limestone is composed of bioclastic wackestone, boundstone, and fossiliferous wackestone. The igneous rock in the area is a grey-black hornblende andesite. Bangunsari fault, which cuts through the study area, disturbs the coastal terraces to its south. The results of the quantitative assessment show that the site's potential educational use, potential touristic use, and degradation risk scores are 92.5, 80, and 56.25, respectively. The assessment scores describe the site as having potential for education and tourism uses, with a medium risk of degradation. Quite prominent cultural elements, which form the local community's identity, are included as a complement to the identification of the site. In order to preserve and maintain the sustainability of this potential geodiversity site, a high commitment related to geoconservation is required. [ABSTRACT FROM AUTHOR]

Dong Van Karst Plateau (DVKP) is a deep and remote area in the north of Vietnamwhich has numerous notable geoheritage characteristics. Karst coverage in the DVKP is among the largest compared to other regions in the country: up to 60% of the DVKP. However, to now, the relevant geoheritage information remains incomplete. The terrigenous rock cover of the remaining part is also underlaid by limestone. The aimof this paper is to identify territorial geoheritage with palaeontological, geomorphologic, structural-tectonic, stratigraphical, and lithology characteristics. Our research results have enabled the DVKP to be recognized as a UNESCO Global Geopark. Studying geology to identify unique natural features and transform impoverished and underdeveloped areas into a tourism destinations, like DVKP, is a common aspiration among people. Before 2000, DVKP was an underdeveloped economic region. With the efforts of geologists, the unique geoheritage of the DVKP have been discovered. Currently, DVKP has become a famous destination, known as the Dong Van Karst Plateau UNESCO Global Geopark, which was recognized in 2010. In this paper, the author introduces new geomorphosites of the DVKP. At the same time, it shows how Vietnam seeks to increase the quality of geotourismto drawmore tourists and encourage socioeconomic growth by adding geomorphosites and creating awareness in society. [ABSTRACT FROM AUTHOR]

Geochemical pattern recognition has long been of interest for geologists to reveal geochemical anomalies associated with mineralization. In regional-scale exploration, geochemical anomalies are derived conventionally from stream sediment samples and processed in the form of vectors, resulting in row-wise outliers. However, geochemical anomalies derived through various means of pattern recognition have shown their limits in depicting complex geochemical distributions. In this paper, we propose to utilize the Shapley value, linked to the Mahalanobis distance (MD), and cell-wise outlier detection to facilitate the recognition of anomalous geochemical indicator elements. First, by considering the compositional nature of geochemical data, multivariate outliers are detected based on the MD in isometric log-ratio coordinates. Secondly, to quantify the contributions of individual elements to the outlyingness of an outlier, Shapley values are used to express the MDs of data as outlyingness contributions of single elements. Finally, cell-wise outlier detection is introduced to examine and quantify the outlyingness of each cell in a geochemical data matrix. The outlying cells serve as criteria for further recognition of element associations. By analysing the Shapley values of individual elements and the outlying cells in a geochemical data matrix, more information contained in multivariate outliers can be recognized. Using this proposed methodology, the element associations that relate to regional mineralization in the study area were Au-only anomalies, Au–As–Sb anomalies, As–Sb–Hg anomalies and Ag-related anomalies. [ABSTRACT FROM AUTHOR]

Many rock and mineral collectors have roots in the movies and books of Jules Verne, such as Journey to the Centre of the Earth (1864). It seems only fitting that the mineral verneite was recently named after him, one of only three writers (Verne, Goethe and Theophrastus) to have a mineral named after them. Verne was an active amateur geologist, visiting sites throughout Europe. Of Verne's 80 novels, many have geological themes, subthemes or backgrounds second only to the sea. Like in his Journey to the Center of the Earth, Verne's lesser geological novels offer a remarkable literary guide to rocks, minerals and geology. Verne's geology‐based novels and writings are extensive and provide a means to re‐energize your childhood love of mineral collecting. [ABSTRACT FROM AUTHOR]

The history of archaeology, and of Egyptology, has traditionally been written as a linear narrative of progress, with narrow-minded amateurs—the antiquaries—giving way to professional archaeologists. For some, Joseph Hekekyan's excavations (co-directed by Leonard Horner) at Memphis and Heliopolis in the 1850s have been seen as a turning point, when the geological principle of stratigraphy was applied to archaeology, thus giving rise to methodical scientific excavation. This article challenges the existing narrative by showing how critiques of Hekekyan's excavation and Horner's interpretation, by the antiquary and historian Samuel Sharpe, inspired the eminent geologist Charles Lyell to seek the opinion of John Gardner Wilkinson, another leading antiquarian Egyptologist, as to the validity of the excavations. Wilkinson's specialist knowledge of Egypt enabled him to identity the problematic assumptions that underpinned the excavation programme, which other leading scholars had missed. Though Lyell was unsuccessful in obtaining the support he desired, he became aware of the more complex situation on the ground in Egypt. Instead of ushering in an age of scientific Egyptology, the Horner–Hekekyan programme highlights how new methodological techniques were contested by contemporaries, and did not immediately or necessarily translate into improved knowledge: a much-neglected dimension in fieldwork-centred disciplinary histories. [ABSTRACT FROM AUTHOR]

The article investigates how plastic builds a separate historical and temporal consciousness and affective interiorities and historicality among historians, geologists and artists. Topics include how a sense of history alters people's relationship with a material, plastic's evolution as industrial product in 1907 and its spread to global use in 1950 and the impact on plastic historical consciousness of plastiglomerate discovery by geologist Patricia Corcoran and others at Kamilo Beach, Hawaii.

Copyright of Cuaternario y Geomorfología is the property of Cuaternario y Geomorfologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

On the occasion of 29 October 2023, the 100th anniversary of the Republic of Türkiye, I would like to pay tribute to M. Ozan Sungurlu (1939–1990), one of the most important non-academic competent Turkish field and petroleum geologists, and a pioneer of geological field observations throughout Türkiye. His scientific studies were published in numerous articles, many of which were co-authored by Turkish geologists. This article was written in memory and appreciation of M. Ozan Sungurlu, who made a great contribution to the field of geology in Türkiye and whose importance to Türkiye is undisputed. M. Ozan Sungurlu will be remembered as a valuable geoscientist whose passion and legacy we should share with future generations. [ABSTRACT FROM AUTHOR]

Arturo Issel (1842–1922) introduced the regional Tyrrhenian stage of the late Pleistocene in 1914. This still stands within modern stratigraphic classification as an Italian Marine Stage for the Mediterranean Sea marking the base of the Late Pleistocene underlining the scientific importance of Issel's research within the geological sciences. This paper provides a short overview of the career and the wide-ranging interests of this Italian geologist and naturalistic traveller in order to provide a context to the knowledge and research experience behind his stratigraphic work. As university professor in Genovese society during the late nineteenth and early twentieth centuries, he played an important role in scientific instruction, exploration and research contributing to the popularization of science through museum collections and publications and in the application of such knowledge within public office both in Liguria and within Italy. He formed part of the Italian delegation at International Geological Congresses and held membership of the most outstanding geological societies and scientific academies of the time. [ABSTRACT FROM AUTHOR]

Scipione Breislak may be considered as one of the most renowned Italian 'Plutonists' at the end of the eighteenth and beginning of the nineteenth centuries. In the 1790s, he was a professor of Physics at the Military Academy of Nunziatella in Naples, where he also devoted himself to the study of Vesuvius and the Phlegraean Fields. Thus, he acquainted himself with volcanic phenomena. Breislak's works about the volcanic fields of Campania (Southern Italy) disclosed how Torbern Olof Bergman's theories and Antoine-Laurent de Lavoisier's chemistry had affected his belief in the idea that volcanic eruptions were triggered by ignition of petroleum deposits. After a voluntary exile in France, owing to the downfall of the Roman Republic, Breislak returned to Italy and settled in Milan, where he was appointed as an Inspector of Gunpowder in 1802. Due to his new administrative duties, he had the opportunity to continue studying mineralogy and geology, focusing primarily on the stratigraphy of Lombardy and of the Alps. During the 'Milanese period', he published the Introduzione alla geologia (Introduction to geology, 1811), which may be regarded as the first Italian handbook about the 'new' science of Geology. In the monograph, he also drew on Huttonian ideas in order to describe the lithostratigraphic features of crystalline rocks. Without neglecting Breislak's volcanological hypotheses, this paper aims to analyze the influence that nineteenth-century Plutonist (Huttonian) geological theories had on the Earth's history that he depicted in the Introduzione alla geologia. The influence of Plutonism—a term that Richard Kirwan introduced to define James Hutton's geological system—may also be recognized in Breislak's rejection of transition rocks. Indeed, according to him: "nature does not make passages or transitions, and each of its products has a specific and particular way to exist" (Breislak 1811, volume 1, pp. 308–309). [ABSTRACT FROM AUTHOR]

The relevance of the Société Géologique de France (SGF) in the geoscientific landscape is undoubtedly recognized, but the academic literature dedicated to its history is scarce. The present paper aims to portray some aspects of the SGF's ordinary functioning filtered through the eyes and experience of a first-time member during the years he was active in the Society's life—approximately from 1830 to 1860. The basic assumption is that the SGF, similar to the Geological Society of London and other (geo)scientific societies, was an "arena of geological debate in the early Nineteenth century" (Rudwick 1986). Within this arena, not only scientific cultures, ideas, and practices were confronted, but also savants, experts, and amateurs clashed with each other. The constant and often very intense participation of Nérée Boubée (1806-1862) reveals much about the SGF and himself. We will follow his footsteps as a guiding thread of the narrative. Not being a savant, nor part of the élite of geology at his time, neither was Boubée a typical amateur. As was the case of many other members of the SGF, he may be considered an "accomplished" member— i.e., a geologist specialist in a more restricted subject (Rudwick 1985, p. 120). Boubée's trajectory within the SGF is a good window to see the functioning of the SGF in more detail, as it may also exemplify the paths followed by other ordinary members like him, who constituted the majority of the membership. The article concludes that the SGF was indeed an "arena" both in terms of the construction of knowledge and practices, and at the personal level of intra-community interactions. [ABSTRACT FROM AUTHOR]

On the occasion of the 80th commemoration of Professor Ion Popescu-Voiteşti's demise, we can say with certainty that he still remains one of the pillars of the geological sciences in Romania. As one of the pioneers of this science in Romania, his numerous written contributions also include a significant number of illustrations. Among the latter there are more than a thousand published geological sections and logs, countless hand sketches that have likeley been irretrievably lost, in addition to a remarkable collection of geology-themed maps, the majority of which are still accurate today. Herein, 13 maps signed by him are discussed, maps that are based on the studies carried out by the geologist throughout his lifetime. This work was put together not only to commemorate the aforementioned eight- decade pole, but also as an homage to the excellence that this skillful cartographer bestowed towards the Romanian scientific research. [ABSTRACT FROM AUTHOR]

The tectonic affinity of the Korean Peninsula in reference to the Permo-Triassic collision of the Sino-Korean Craton (SKC) and the South China Craton (SCC) has been in the center of debates over the last three decades. Since the Imjingang Belt that runs through the middle part of the Korean Peninsula is thought to represent the major tectonic boundary, most part of North Korea, including the "Pyeongnam Basin" in the southern part, has been regarded as part of the SKC. However, differences in stratigraphy and the fossil occurrence have been recognized by local geologists between the southern part of "the Pyeongnam Basin" (SPB) and the northern part of the "Pyeongnam Basin" (NPB), and which have hardly been considered for the paleogeographical affinity of the regions so far. Here we provide a comprehensive review on 1,072 fossil taxa from the Neoproterozoic to middle Paleozoic sedimentary successions of North Korea, and utilize the data for determining tectonic affinity of the regions. Especailly, Cambrian trilobite genera from the SPB and NPB have been quantitatively compared with those of North China (the SKC) and the SCC, using similarity indices, the non-metric multidimensional scaling (NMDS), and PerMANOVA test. The results have revealed that the SPB is tied to the SCC, not to North China (the SKC), whereas the NPB is closely related to North China. The SCC affinity of the SPB is corroborated by stratigraphical features, such as the presence of the Precambrian–Cambrian boundary and the middle Paleozoic strata, which are largely absent in the SKC. Our results demonstrate that the SPB region likely originated from to the SCC, and thus further suggest that the collisional boundary of supracrustal rocks between the SKC and the SCC in the Korean Peninsula corresponds to the boundary of the NPB and the SPB. Accordingly, the extent of the newly-defined Pyeongnam Basin is restricted to the traditional NPB region. The SPB region is included in the extent of the newly-proposed Hwanghae District, which is bounded to the east with the Imjingang Belt by the Ryesonggang Fault. The South China Craton-originated rocks of the Hwanghae District and the Imjingang Belt are collectively termed the South China-affinity terrane (SAT). [ABSTRACT FROM AUTHOR]

Geological modeling is an essential step in mineral resource assessment. Geologists typically use deterministic methods to create interpreted models, which ignore the uncertainty in the geological domain layout. This study explores a hierarchical approach for simulating a categorical variable (lithological domain) and a continuous variable (iron grade) in a deposit located in Cameroon, enhancing confidence and accounting for geological uncertainty in resource evaluation. To achieve this, lithological domains are simulated using a non-stationary variant of the plurigaussian model, followed by the simulation of iron grade while accounting for its spatial correlation within and across domains. Cross-validation is used to validate the model, and the simulated block models are processed to assess in-situ and recoverable resources and their uncertainties. [ABSTRACT FROM AUTHOR]

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In this paper, the main leisure activities of the geologists, identified by the author on the basis of collected interviews with those involved at the initial stage of geological explorations in Tyumen Oblast during the 1950s–1960s, are presented. The organisation of the leisure activities, as well as the complex development of the social and domestic sphere amongst the geological prospectors, in one of the perspective regions in terms of the availability of hydrocarbons, was not amongst the priorities of the state at the dawn of the oil exploration and was a prerogative of the geological community. The trade unions of geologists, who were overseeing social matters, including leisure activities, due to low funding and a lack of adequate personnel and material-and-technical potential did not always successfully cope with the tasks set. The leveling of the shortcomings in this development was imposed on the initiative of the oil prospectors themselves, who were interested in improving conditions of their stay at the work sites. It is noted that the initiatives of the geologists expanded the possibilities of organized forms of leisure activities both at stationary places of residence and ’in the field’. The variability of leisure activities at the locations of geological parties, including residential places, was significantly higher than in the places of work ― ‘in the field’. However, even in conditions of remoteness from the centres of ‘culture’, oil prospectors carried out improvement of the quality and diversity of their leisure time on their own. The demand for and variability of the leisure practices were taking place in line with the ‘concept of culture’, depended on the degree of qualification and level of education of the specialists, personal development and attitude of the employees, and their environment. The implementation of leisure practices was necessitated by the need for compensating limited opportunities of the socio-cultural environment against the background of the dominance of the strenuous daily work, as well as the confrontation in the archaisation of the daily routine due to the prevalence of the deviant forms of behaviour. Many changes emanating from the oil prospectors and taking place in the socio-cultural sphere later took root and became an asset of the local population. The initiative of the geologists made it possible to expand and diversify leisure practices under the lack of opportunities and financial support of the social sphere, which facilitated positive changes in the daily life of the geologists themselves and population of the places where the oil prospectors were staying.