Middle Miocene marine and continental climate and environments at the Wilkes Land margin, Antarctica (IODP 318)
Integrated Ocean Drilling Program (IODP) Expedition 318 accomplished successful drilling of the Wilkes Land margin (East Antarctica) in early 2010. Understanding the development and the dynamics of the cryosphere during the Cenozoic and obtaining high-resolution records of climate variability during...
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ftunivnorthumb:oai:nrl.northumbria.ac.uk:17922 2023-05-15T13:35:33+02:00 Middle Miocene marine and continental climate and environments at the Wilkes Land margin, Antarctica (IODP 318) Sangiorgi, Francesca Schouten, Stefan Bendle, James Salzmann, Ulrich Brinkhuis, Henk Escutia, Carlotta 2011-12 https://nrl.northumbria.ac.uk/id/eprint/17922/ unknown Sangiorgi, Francesca, Schouten, Stefan, Bendle, James, Salzmann, Ulrich, Brinkhuis, Henk and Escutia, Carlotta (2011) Middle Miocene marine and continental climate and environments at the Wilkes Land margin, Antarctica (IODP 318). In: American Geophysical Union, Fall Meeting 2011, 5-9 December 2011, San Francisco, CA. F700 Ocean Sciences F800 Physical and Terrestrial Geographical and Environmental Sciences Conference or Workshop Item PeerReviewed 2011 ftunivnorthumb 2022-09-25T06:00:10Z Integrated Ocean Drilling Program (IODP) Expedition 318 accomplished successful drilling of the Wilkes Land margin (East Antarctica) in early 2010. Understanding the development and the dynamics of the cryosphere during the Cenozoic and obtaining high-resolution records of climate variability during the Neogene and the Quaternary were among the main targets. Samples from Site U1356 Hole A, between ~400 (across unconformity U5) and ~100 mbsf are analysed for dinoflagellate assemblages, pollen and spores, TEX86 and MBT in order to unravel marine and terrestrial climate variability during the early to middle Miocene. Results show that dinoflagellate assemblages, dominated by autotrophic species, are indicative of warm ice-free surface waters during the Middle Miocene Climatic Optimum (MMCO). TEX86-derived Sea Surface Temperatures (SSTs) confirm this interpretation. Continental temperatures based on pollen and Mean Annual Temperatures (MATs) as derived from MBT organic proxy indicate a vegetated Antarctic margin with temperate conditions. A clear climate deterioration occurs during the Mid Miocene Climate Transition (MMCT), when dinocyst and pollen assemblages indicate (year-round) sea-ice development and ice-sheets advance, respectively. Notably, SSTs and MATs markedly decrease. Conference Object Antarc* Antarctic Antarctica East Antarctica Sea ice Wilkes Land Northumbria University, Newcastle: Northumbria Research Link (NRL) Antarctic East Antarctica Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) |
institution |
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Northumbria University, Newcastle: Northumbria Research Link (NRL) |
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ftunivnorthumb |
language |
unknown |
topic |
F700 Ocean Sciences F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F700 Ocean Sciences F800 Physical and Terrestrial Geographical and Environmental Sciences Sangiorgi, Francesca Schouten, Stefan Bendle, James Salzmann, Ulrich Brinkhuis, Henk Escutia, Carlotta Middle Miocene marine and continental climate and environments at the Wilkes Land margin, Antarctica (IODP 318) |
topic_facet |
F700 Ocean Sciences F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
Integrated Ocean Drilling Program (IODP) Expedition 318 accomplished successful drilling of the Wilkes Land margin (East Antarctica) in early 2010. Understanding the development and the dynamics of the cryosphere during the Cenozoic and obtaining high-resolution records of climate variability during the Neogene and the Quaternary were among the main targets. Samples from Site U1356 Hole A, between ~400 (across unconformity U5) and ~100 mbsf are analysed for dinoflagellate assemblages, pollen and spores, TEX86 and MBT in order to unravel marine and terrestrial climate variability during the early to middle Miocene. Results show that dinoflagellate assemblages, dominated by autotrophic species, are indicative of warm ice-free surface waters during the Middle Miocene Climatic Optimum (MMCO). TEX86-derived Sea Surface Temperatures (SSTs) confirm this interpretation. Continental temperatures based on pollen and Mean Annual Temperatures (MATs) as derived from MBT organic proxy indicate a vegetated Antarctic margin with temperate conditions. A clear climate deterioration occurs during the Mid Miocene Climate Transition (MMCT), when dinocyst and pollen assemblages indicate (year-round) sea-ice development and ice-sheets advance, respectively. Notably, SSTs and MATs markedly decrease. |
format |
Conference Object |
author |
Sangiorgi, Francesca Schouten, Stefan Bendle, James Salzmann, Ulrich Brinkhuis, Henk Escutia, Carlotta |
author_facet |
Sangiorgi, Francesca Schouten, Stefan Bendle, James Salzmann, Ulrich Brinkhuis, Henk Escutia, Carlotta |
author_sort |
Sangiorgi, Francesca |
title |
Middle Miocene marine and continental climate and environments at the Wilkes Land margin, Antarctica (IODP 318) |
title_short |
Middle Miocene marine and continental climate and environments at the Wilkes Land margin, Antarctica (IODP 318) |
title_full |
Middle Miocene marine and continental climate and environments at the Wilkes Land margin, Antarctica (IODP 318) |
title_fullStr |
Middle Miocene marine and continental climate and environments at the Wilkes Land margin, Antarctica (IODP 318) |
title_full_unstemmed |
Middle Miocene marine and continental climate and environments at the Wilkes Land margin, Antarctica (IODP 318) |
title_sort |
middle miocene marine and continental climate and environments at the wilkes land margin, antarctica (iodp 318) |
publishDate |
2011 |
url |
https://nrl.northumbria.ac.uk/id/eprint/17922/ |
long_lat |
ENVELOPE(120.000,120.000,-69.000,-69.000) |
geographic |
Antarctic East Antarctica Wilkes Land |
geographic_facet |
Antarctic East Antarctica Wilkes Land |
genre |
Antarc* Antarctic Antarctica East Antarctica Sea ice Wilkes Land |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Sea ice Wilkes Land |
op_relation |
Sangiorgi, Francesca, Schouten, Stefan, Bendle, James, Salzmann, Ulrich, Brinkhuis, Henk and Escutia, Carlotta (2011) Middle Miocene marine and continental climate and environments at the Wilkes Land margin, Antarctica (IODP 318). In: American Geophysical Union, Fall Meeting 2011, 5-9 December 2011, San Francisco, CA. |
_version_ |
1766067074052915200 |