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15 results on '"Mateo, Zenon"'

1. Hazardous explosive eruptions of a recharging multi-cyclic island arc caldera

Author

Preine, Jonas, Karstens, Jens, Hübscher, Christian, Druitt, Tim, Kutterolf, Steffen, Nomikou, Paraskevi, Manga, Michael, Gertisser, Ralf, Pank, Katharina, Beethe, Sarah, Berthod, Carole, Crutchley, Gareth, McIntosh, Iona, Ronge, Thomas, Tominaga, Masako, Clark, Acacia, DeBari, Susan, Johnston, Raymond, Mateo, Zenon, Peccia, Ally, Jones, Christopher, Kletetschka, Günther, Metcalfe, Abigail, Bernard, Alexis, Chen, Hehe, Chiyonobu, Shun, Fernandez-Perez, Tatiana, Joshi, Kumar Batuk, Koukousioura, Olga, McCanta, Molly, Morris, Antony, Polymenakou, Paraskevi, Woodhouse, Adam, Yamamoto, Yuzuru, Wang, Kuo-Lung, Lee, Hao-Yang, Li, Xiaohui, and Papanikolaou, Dimitrios

Published
2024
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6. Early and middle Miocene ice sheet dynamics in the Ross Sea: Results from integrated core-log-seismic interpretation

Author

Marine palynology and palaeoceanography, Marine Palynology, Pérez, Lara F., De Santis, Laura, McKay, R., Larter, Robert D., Ash, Jeanine, Bart, Phil J., Böhm, Gualtiero, Brancatelli, Giuseppe, Browne, Imogen B., Colleoni, Florence, Dodd, J.P., Geletti, Riccardo, Harwood, D.M., Kuhn, G., Laberg, Jan Sverre, Leckie, R. Mark, Levy, R.H., Marschalek, James, Mateo, Zenon, Naish, Timothy, Sangiorgi, Francesca, Shevenell, Amelia, Sorlien, Christopher C., Van De Flierdt, Tina, IODP Expedition 374 Scientists, Marine palynology and palaeoceanography, Marine Palynology, Pérez, Lara F., De Santis, Laura, McKay, R., Larter, Robert D., Ash, Jeanine, Bart, Phil J., Böhm, Gualtiero, Brancatelli, Giuseppe, Browne, Imogen B., Colleoni, Florence, Dodd, J.P., Geletti, Riccardo, Harwood, D.M., Kuhn, G., Laberg, Jan Sverre, Leckie, R. Mark, Levy, R.H., Marschalek, James, Mateo, Zenon, Naish, Timothy, Sangiorgi, Francesca, Shevenell, Amelia, Sorlien, Christopher C., Van De Flierdt, Tina, and IODP Expedition 374 Scientists

Published
2022

7. Early and middle Miocene ice sheet dynamics in the Ross Sea: Results from integrated core-log-seismic interpretation

Author

Pérez, Lara, De Santis, Laura, McKay, Robert M., Larter, Robert D., Ash, Jeanine, Bart, Phil J., Böhm, Gualtiero, Brancatelli, Giuseppe, Browne, Imogen, Colleoni, Florence, Dodd, Justin P., Geletti, Riccardo, Harwood, David M., Kuhn, Gerhard, Laberg, Jan Sverre, Leckie, R. Mark, Levy, Richard H., Marschalek, James, Mateo, Zenon, Naish, Timothy R., Sangiorgi, Francesca, Shevenell, Amelia E., Sorlien, Christopher C., van de Flierdt, Tina, International Ocean Discovery Program Expedition, 374 Scientists, Pérez, Lara, De Santis, Laura, McKay, Robert M., Larter, Robert D., Ash, Jeanine, Bart, Phil J., Böhm, Gualtiero, Brancatelli, Giuseppe, Browne, Imogen, Colleoni, Florence, Dodd, Justin P., Geletti, Riccardo, Harwood, David M., Kuhn, Gerhard, Laberg, Jan Sverre, Leckie, R. Mark, Levy, Richard H., Marschalek, James, Mateo, Zenon, Naish, Timothy R., Sangiorgi, Francesca, Shevenell, Amelia E., Sorlien, Christopher C., van de Flierdt, Tina, and International Ocean Discovery Program Expedition, 374 Scientists

Abstract

Oscillations in ice sheet extent during early and middle Miocene are intermittently preserved in the sedimentary record from the Antarctic continental shelf, with widespread erosion occurring during major ice sheet advances, and open marine deposition during times of ice sheet retreat. Data from seismic reflection surveys and drill sites from Deep Sea Drilling Project Leg 28 and International Ocean Discovery Program Expedition 374, located across the present-day middle continental shelf of the central Ross Sea (Antarctica), indicate the presence of expanded early to middle Miocene sedimentary sections. These include the Miocene climate optimum (MCO ca. 17−14.6 Ma) and the middle Miocene climate transition (MMCT ca. 14.6−13.9 Ma). Here, we correlate drill core records, wireline logs and reflection seismic data to elucidate the depositional architecture of the continental shelf and reconstruct the evolution and variability of dynamic ice sheets in the Ross Sea during the Miocene. Drill-site data are used to constrain seismic isopach maps that document the evolution of different ice sheets and ice caps which influenced sedimentary processes in the Ross Sea through the early to middle Miocene. In the early Miocene, periods of localized advance of the ice margin are revealed by the formation of thick sediment wedges prograding into the basins. At this time, morainal bank complexes are distinguished along the basin margins suggesting sediment supply derived from marine-terminating glaciers. During the MCO, biosiliceous-bearing sediments are regionally mapped within the depocenters of the major sedimentary basin across the Ross Sea, indicative of widespread open marine deposition with reduced glacimarine influence. At the MMCT, a distinct erosive surface is interpreted as representing large-scale marine-based ice sheet advance over most of the Ross Sea paleo-continental shelf. The regional mapping of the seismic stratigraphic architecture and its correlation to drilling da

Published
2022

8. Early and middle Miocene ice sheet dynamics in the Ross Sea: Results from integrated core-log-seismic interpretation

Author

Pérez, Lara F., De Santis, Laura, McKay, Robert M., Larter, Robert D., Ash, Jeanine, Bart, Phil J., Böhm, Gualtiero, Brancatelli, Giuseppe, Browne, Imogen, Colleoni, Florence, Dodd, Justin P., Geletti, Riccardo, Harwood, David M., Kuhn, Gerhard, Sverre Laberg, Jan, Leckie, R. Mark, Levy, Richard H., Marschalek, James, Mateo, Zenon, Naish, Timothy R., Sangiorgi, Francesca, Shevenell, Amelia E., Sorlien, Christopher C., van de Flierdt, Tina, 374 Scientists, International Ocean Discovery Program Expedition, Pérez, Lara F., De Santis, Laura, McKay, Robert M., Larter, Robert D., Ash, Jeanine, Bart, Phil J., Böhm, Gualtiero, Brancatelli, Giuseppe, Browne, Imogen, Colleoni, Florence, Dodd, Justin P., Geletti, Riccardo, Harwood, David M., Kuhn, Gerhard, Sverre Laberg, Jan, Leckie, R. Mark, Levy, Richard H., Marschalek, James, Mateo, Zenon, Naish, Timothy R., Sangiorgi, Francesca, Shevenell, Amelia E., Sorlien, Christopher C., van de Flierdt, Tina, and 374 Scientists, International Ocean Discovery Program Expedition

Abstract

Oscillations in ice sheet extent during early and middle Miocene are intermittently preserved in the sedimentary record from the Antarctic continental shelf, with widespread erosion occurring during major ice sheet advances, and open marine deposition during times of ice sheet retreat. Data from seismic reflection surveys and drill sites from Deep Sea Drilling Project Leg 28 and International Ocean Discovery Program Expedition 374, located across the present-day middle continental shelf of the central Ross Sea (Antarctica), indicate the presence of expanded early to middle Miocene sedimentary sections. These include the Miocene climate optimum (MCO ca. 17−14.6 Ma) and the middle Miocene climate transition (MMCT ca. 14.6−13.9 Ma). Here, we correlate drill core records, wireline logs and reflection seismic data to elucidate the depositional architecture of the continental shelf and reconstruct the evolution and variability of dynamic ice sheets in the Ross Sea during the Miocene. Drill-site data are used to constrain seismic isopach maps that document the evolution of different ice sheets and ice caps which influenced sedimentary processes in the Ross Sea through the early to middle Miocene. In the early Miocene, periods of localized advance of the ice margin are revealed by the formation of thick sediment wedges prograding into the basins. At this time, morainal bank complexes are distinguished along the basin margins suggesting sediment supply derived from marine-terminating glaciers. During the MCO, biosiliceous-bearing sediments are regionally mapped within the depocenters of the major sedimentary basin across the Ross Sea, indicative of widespread open marine deposition with reduced glacimarine influence. At the MMCT, a distinct erosive surface is interpreted as representing large-scale marine-based ice sheet advance over most of the Ross Sea paleo-continental shelf. The regional mapping of the seismic stratigraphic architecture and its correlation to drilling da

Published
2021

14. Early and middle Miocene ice sheet dynamics in the Ross Sea: Results from integrated core-log-seismic interpretation.

Author

Pérez, Lara F., De Santis, Laura, McKay, Robert M., Larter, Robert D., Ash, Jeanine, Bart, Phil J., Böhm, Gualtiero, Brancatelli, Giuseppe, Browne, Imogen, Colleoni, Florence, Dodd, Justin P., Geletti, Riccardo, Harwood, David M., Kuhn, Gerhard, Laberg, Jan Sverre, Leckie, R. Mark, Levy, Richard H., Marschalek, James, Mateo, Zenon, and Naish, Timothy R.

Subjects
*ICE sheets, *UNDERWATER drilling, *MIOCENE Epoch, *ICE caps, *DRILL cores, *MELTWATER, *ICE shelves
Abstract

Oscillations in ice sheet extent during early and middle Miocene are intermittently preserved in the sedimentary record from the Antarctic continental shelf, with widespread erosion occurring during major ice sheet advances, and open marine deposition during times of ice sheet retreat. Data from seismic reflection surveys and drill sites from Deep Sea Drilling Project Leg 28 and International Ocean Discovery Program Expedition 374, located across the present-day middle continental shelf of the central Ross Sea (Antarctica), indicate the presence of expanded early to middle Miocene sedimentary sections. These include the Miocene climate optimum (MCO ca. 17-14.6 Ma) and the middle Miocene climate transition (MMCT ca. 14.6-13.9 Ma). Here, we correlate drill core records, wireline logs and reflection seismic data to elucidate the depositional architecture of the continental shelf and reconstruct the evolution and variability of dynamic ice sheets in the Ross Sea during the Miocene. Drill-site data are used to constrain seismic isopach maps that document the evolution of different ice sheets and ice caps which influenced sedimentary processes in the Ross Sea through the early to middle Miocene. In the early Miocene, periods of localized advance of the ice margin are revealed by the formation of thick sediment wedges prograding into the basins. At this time, morainal bank complexes are distinguished along the basin margins suggesting sediment supply derived from marine-terminating glaciers. During the MCO, biosiliceous-bearing sediments are regionally mapped within the depocenters of the major sedimentary basin across the Ross Sea, indicative of widespread open marine deposition with reduced glacimarine influence. At the MMCT, a distinct erosive surface is interpreted as representing large-scale marine-based ice sheet advance over most of the Ross Sea paleo-continental shelf. The regional mapping of the seismic stratigraphic architecture and its correlation to drilling data indicate a regional transition through the Miocene from growth of ice caps and inland ice sheets with marine-terminating margins, to widespread marine-based ice sheets extending across the outer continental shelf in the Ross Sea. [ABSTRACT FROM AUTHOR]

Published
2022
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15. Rapid and widespread response of the Lower Mississippi River to eustatic forcing during the last glacial-interglacial cycle.

Author

Zhixiong Shen, Törnqvist, Torbjörn E., Autin, Whitney J., Mateo, Zenon Richard P., Straub, Kyle M., and Mauz, Barbara

Subjects
*GLACIOLOGY, *ALLUVIUM, *QUATERNARY Period, *STRATIGRAPHIC geology, *SHORELINES
Abstract

The Lower Mississippi Valley provides an exceptional fi eld example for studying the response of a continental-scale alluvial system to upstream and downstream forcing associated with the large, orbitally controlled glacialinter glacial cycles of the late Quaternary. However, the lack of a numerical chronology for the widespread Pleistocene strata assemblage known as the Prairie Complex, which borders the Holocene fl oodplain of the Lower Mississippi River, has so far precluded such an analysis. Here, we apply optically stimulated luminescence (OSL) dating, mainly on silt-sized quartz from Prairie Complex strata. In total, 27 OSL ages indicate that the Prairie Complex consists of multiple allostratigraphic units that formed mainly during marine isotope stages 7, 5e, and 5a. Thus, the aggradation of the Prairie Complex is strongly correlated with the sea-level highstands of the last two glacialinterglacial cycles. Fluvial incision during the sea-level fall associated with the MIS 5a-MIS 4 transition extended as far inland as ∼600 km from the present-day shoreline, testifying to the dominant downstream control of fl uvial stratigraphic architecture in the Lower Mississippi Valley. In addition, the short reaction time of the Lower Mississippi River suggests that large fl uvial systems can respond much more rapidly to allogenic forcing than is commonly believed. [ABSTRACT FROM AUTHOR]

Published
2012
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