Pliocene Diatom Biomarkers in Sabrina Coast. EAIS Continental Marginal Dynamics
PNRA Tytan project, supported by the National Institute of Oceanography and Applied Geophysics (OGS), focused on the advances and retreats dynamics of the ice sheet and on variations in the glacial regime. Unit 2 focused on Diatom biomarkers and assemblages analysis on sediments of core PC03, collec...
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WSL Institute for Snow and Avalanche Research SLF
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ftunivgenova:oai:iris.unige.it:11567/980151 2024-01-28T10:01:40+01:00 Pliocene Diatom Biomarkers in Sabrina Coast. EAIS Continental Marginal Dynamics Raffaella Tolotti Federica Donda Roberto Romeo Leanne Armand Meghan Duffy Andrea Caburlotto Amy Leventer Phil O'Brien Maria Cristina Bonci Nicola Corradi Laura De Santis Tolotti, Raffaella Donda, Federica Romeo, Roberto Armand, Leanne Duffy, Meghan Caburlotto, Andrea Leventer, Amy O'Brien, Phil Bonci, MARIA CRISTINA Corradi, Nicola De Santis, Laura 2018 ELETTRONICO http://hdl.handle.net/11567/980151 eng eng WSL Institute for Snow and Avalanche Research SLF info:eu-repo/semantics/altIdentifier/isbn/978-0-948277-54-2 ispartofbook:Polar 2018 "Where the Poles come together" : Abstract Proceedings POLAR 2018 "Where the Poles come together" firstpage:480 lastpage:480 numberofpages:1 http://hdl.handle.net/11567/980151 info:eu-repo/semantics/openAccess Diatom biomarkers Biostratigraphy Sedimentology Ice-sheet dynamics Paleoclimate change Sabrina Coast Antarctica info:eu-repo/semantics/conferenceObject 2018 ftunivgenova 2024-01-03T17:59:17Z PNRA Tytan project, supported by the National Institute of Oceanography and Applied Geophysics (OGS), focused on the advances and retreats dynamics of the ice sheet and on variations in the glacial regime. Unit 2 focused on Diatom biomarkers and assemblages analysis on sediments of core PC03, collected during the IN2017-V01 cruise on the eastern flank of the Minang-a (or Whale) submarine Canyon. The project aims at reconstructing the depositional environment of the continental margin off the Totten Glacier and diatom data remained a key tools to constrain past ice-sheet dynamics and to forecasting future behaviour in a warming world. Preliminary dataset from diatom biostratigraphic tools allows to refer the base of the core to Pliocene while the upper part of the core records more modern EAIS dynamics, indicative of minor sedimentary evolution steps of the continental margin. Diatom assemblage analyses highlight Eocene-Oligocene reworked material and freshwater diatom inputs in Pliocene sequence, strengthening the debate about ice-sheet and paleoceanographic models, WAIS cyclic collapse and suspected Pliocene EAIS retreat into major subglacial Antarctic basins. Conference Object Antarc* Antarctic Antarctica Ice Sheet Totten Glacier Università degli Studi di Genova: CINECA IRIS Antarctic Totten Glacier ENVELOPE(116.333,116.333,-66.833,-66.833) Sabrina Coast ENVELOPE(118.550,118.550,-67.000,-67.000) |
institution |
Open Polar |
collection |
Università degli Studi di Genova: CINECA IRIS |
op_collection_id |
ftunivgenova |
language |
English |
topic |
Diatom biomarkers Biostratigraphy Sedimentology Ice-sheet dynamics Paleoclimate change Sabrina Coast Antarctica |
spellingShingle |
Diatom biomarkers Biostratigraphy Sedimentology Ice-sheet dynamics Paleoclimate change Sabrina Coast Antarctica Raffaella Tolotti Federica Donda Roberto Romeo Leanne Armand Meghan Duffy Andrea Caburlotto Amy Leventer Phil O'Brien Maria Cristina Bonci Nicola Corradi Laura De Santis Pliocene Diatom Biomarkers in Sabrina Coast. EAIS Continental Marginal Dynamics |
topic_facet |
Diatom biomarkers Biostratigraphy Sedimentology Ice-sheet dynamics Paleoclimate change Sabrina Coast Antarctica |
description |
PNRA Tytan project, supported by the National Institute of Oceanography and Applied Geophysics (OGS), focused on the advances and retreats dynamics of the ice sheet and on variations in the glacial regime. Unit 2 focused on Diatom biomarkers and assemblages analysis on sediments of core PC03, collected during the IN2017-V01 cruise on the eastern flank of the Minang-a (or Whale) submarine Canyon. The project aims at reconstructing the depositional environment of the continental margin off the Totten Glacier and diatom data remained a key tools to constrain past ice-sheet dynamics and to forecasting future behaviour in a warming world. Preliminary dataset from diatom biostratigraphic tools allows to refer the base of the core to Pliocene while the upper part of the core records more modern EAIS dynamics, indicative of minor sedimentary evolution steps of the continental margin. Diatom assemblage analyses highlight Eocene-Oligocene reworked material and freshwater diatom inputs in Pliocene sequence, strengthening the debate about ice-sheet and paleoceanographic models, WAIS cyclic collapse and suspected Pliocene EAIS retreat into major subglacial Antarctic basins. |
author2 |
Tolotti, Raffaella Donda, Federica Romeo, Roberto Armand, Leanne Duffy, Meghan Caburlotto, Andrea Leventer, Amy O'Brien, Phil Bonci, MARIA CRISTINA Corradi, Nicola De Santis, Laura |
format |
Conference Object |
author |
Raffaella Tolotti Federica Donda Roberto Romeo Leanne Armand Meghan Duffy Andrea Caburlotto Amy Leventer Phil O'Brien Maria Cristina Bonci Nicola Corradi Laura De Santis |
author_facet |
Raffaella Tolotti Federica Donda Roberto Romeo Leanne Armand Meghan Duffy Andrea Caburlotto Amy Leventer Phil O'Brien Maria Cristina Bonci Nicola Corradi Laura De Santis |
author_sort |
Raffaella Tolotti |
title |
Pliocene Diatom Biomarkers in Sabrina Coast. EAIS Continental Marginal Dynamics |
title_short |
Pliocene Diatom Biomarkers in Sabrina Coast. EAIS Continental Marginal Dynamics |
title_full |
Pliocene Diatom Biomarkers in Sabrina Coast. EAIS Continental Marginal Dynamics |
title_fullStr |
Pliocene Diatom Biomarkers in Sabrina Coast. EAIS Continental Marginal Dynamics |
title_full_unstemmed |
Pliocene Diatom Biomarkers in Sabrina Coast. EAIS Continental Marginal Dynamics |
title_sort |
pliocene diatom biomarkers in sabrina coast. eais continental marginal dynamics |
publisher |
WSL Institute for Snow and Avalanche Research SLF |
publishDate |
2018 |
url |
http://hdl.handle.net/11567/980151 |
long_lat |
ENVELOPE(116.333,116.333,-66.833,-66.833) ENVELOPE(118.550,118.550,-67.000,-67.000) |
geographic |
Antarctic Totten Glacier Sabrina Coast |
geographic_facet |
Antarctic Totten Glacier Sabrina Coast |
genre |
Antarc* Antarctic Antarctica Ice Sheet Totten Glacier |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Totten Glacier |
op_relation |
info:eu-repo/semantics/altIdentifier/isbn/978-0-948277-54-2 ispartofbook:Polar 2018 "Where the Poles come together" : Abstract Proceedings POLAR 2018 "Where the Poles come together" firstpage:480 lastpage:480 numberofpages:1 http://hdl.handle.net/11567/980151 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1789326903382900736 |