Tectonic and Sedimentary Processes of the West Antarctic Margin of the Amundsen Sea Embayment and Pine Island Bay
Accurate models of the geodynamic-tectonic evolution contain some of the most important parameters for understanding and reconstruction of the respective regional and global palaeo-environment. The region of the Amundsen Sea embayment and Pine Island Bay is of great importance for understanding both...
Main Authors: | , , , , , , , , , , , , |
---|---|
Other Authors: | |
Format: | Conference Object |
Language: | English |
Published: |
2006
|
Subjects: | |
Online Access: | https://hdl.handle.net/11585/968143 https://doi.org/10.6084/m9.figshare.7435484 https://epic.awi.de/id/eprint/14654/ https://www.lifescience.net/publications/16567/tectonic-and-sedimentary-processes-of-the-west-ant/ |
id |
ftunibolognairis:oai:cris.unibo.it:11585/968143 |
---|---|
record_format |
openpolar |
spelling |
ftunibolognairis:oai:cris.unibo.it:11585/968143 2024-05-19T07:28:19+00:00 Tectonic and Sedimentary Processes of the West Antarctic Margin of the Amundsen Sea Embayment and Pine Island Bay Karsten Gohl G. Eagles Gleb Udintsev R. D. Larter Gabriele Uenzelmann-Neben Hans-Werner Schenke Polina Lemenkova Jan Grobys Nicole Parsiegla Philip Schlüter T. Deen Gerhard Kuhn C. D. Hillenbrand Karsten Gohl, G. Eagles, Gleb Udintsev, R. D. Larter, Gabriele Uenzelmann-Neben, Hans-Werner Schenke, Polina Lemenkova, Jan Grobys, Nicole Parsiegla, Philip Schlüter, T. Deen, Gerhard Kuhn, C. D. Hillenbrand 2006 ELETTRONICO https://hdl.handle.net/11585/968143 https://doi.org/10.6084/m9.figshare.7435484 https://epic.awi.de/id/eprint/14654/ https://www.lifescience.net/publications/16567/tectonic-and-sedimentary-processes-of-the-west-ant/ eng eng ispartofbook:2 Open Science Conference and 29 SCAR on 'Antarctica in the Earth System 2nd Open Science Conference and 29th SCAR on 'Antarctica in the Earth System' firstpage:1 lastpage:1 numberofpages:1 https://hdl.handle.net/11585/968143 doi:10.6084/m9.figshare.7435484 https://epic.awi.de/id/eprint/14654/ https://www.lifescience.net/publications/16567/tectonic-and-sedimentary-processes-of-the-west-ant/ Antarctic marine geology geophysics cold regions ice sheet tectonics sediments New Zealand Pine Island Bay Amundsen Sea info:eu-repo/semantics/conferenceObject 2006 ftunibolognairis https://doi.org/10.6084/m9.figshare.7435484 2024-04-26T00:18:23Z Accurate models of the geodynamic-tectonic evolution contain some of the most important parameters for understanding and reconstruction of the respective regional and global palaeo-environment. The region of the Amundsen Sea embayment and Pine Island Bay is of great importance for understanding both tectonic and sedimentary processes of West Antarctica. Tectonically, the Amundsen Sea embayment lies between the Palaeozoic crustal blocks of Marie Byrd Land, Ellsworth Land and Thurston Island. Its continental margin is conjugate to the passive margin of the eastern New Zealand submarine continental plateaux and Bounty Trough which underwent major extension during Cretaceous rifting between New Zealand and West Antarctica. Later, the embayment seemed to have played a role as a plate boundary when the Bellingshausen Plate acted independently as a microplate until the early Tertiary. It can be assumed that the tectonic architecture with the formation of deep basins and erosional troughs laid the foundation for major glacier outflow of the West Antarctic Ice-Sheet (WAIS) into Pine Island Bay and the South Pacific since early West Antarctic glaciation.During RV Polarstern expedition ANT-XXIII/4 (Feb-Apr 2006), and in cooperation with the RMS James Clark Ross cruise JR141 (Jan-Feb 2006), we intend to collect seismic, bathymetric, sub-bottom profiles as well as helicopter-magnetic data from the inner shelf, outer shelf, slope and deep sea of the Amundsen Sea embayment and Pine Island Bay to address tectonic as well as sedimentary objectives. We will present first results of both expeditions. Conference Object Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet Marie Byrd Land Pine Island Pine Island Bay Thurston Island West Antarctica IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
Antarctic marine geology geophysics cold regions ice sheet tectonics sediments New Zealand Pine Island Bay Amundsen Sea |
spellingShingle |
Antarctic marine geology geophysics cold regions ice sheet tectonics sediments New Zealand Pine Island Bay Amundsen Sea Karsten Gohl G. Eagles Gleb Udintsev R. D. Larter Gabriele Uenzelmann-Neben Hans-Werner Schenke Polina Lemenkova Jan Grobys Nicole Parsiegla Philip Schlüter T. Deen Gerhard Kuhn C. D. Hillenbrand Tectonic and Sedimentary Processes of the West Antarctic Margin of the Amundsen Sea Embayment and Pine Island Bay |
topic_facet |
Antarctic marine geology geophysics cold regions ice sheet tectonics sediments New Zealand Pine Island Bay Amundsen Sea |
description |
Accurate models of the geodynamic-tectonic evolution contain some of the most important parameters for understanding and reconstruction of the respective regional and global palaeo-environment. The region of the Amundsen Sea embayment and Pine Island Bay is of great importance for understanding both tectonic and sedimentary processes of West Antarctica. Tectonically, the Amundsen Sea embayment lies between the Palaeozoic crustal blocks of Marie Byrd Land, Ellsworth Land and Thurston Island. Its continental margin is conjugate to the passive margin of the eastern New Zealand submarine continental plateaux and Bounty Trough which underwent major extension during Cretaceous rifting between New Zealand and West Antarctica. Later, the embayment seemed to have played a role as a plate boundary when the Bellingshausen Plate acted independently as a microplate until the early Tertiary. It can be assumed that the tectonic architecture with the formation of deep basins and erosional troughs laid the foundation for major glacier outflow of the West Antarctic Ice-Sheet (WAIS) into Pine Island Bay and the South Pacific since early West Antarctic glaciation.During RV Polarstern expedition ANT-XXIII/4 (Feb-Apr 2006), and in cooperation with the RMS James Clark Ross cruise JR141 (Jan-Feb 2006), we intend to collect seismic, bathymetric, sub-bottom profiles as well as helicopter-magnetic data from the inner shelf, outer shelf, slope and deep sea of the Amundsen Sea embayment and Pine Island Bay to address tectonic as well as sedimentary objectives. We will present first results of both expeditions. |
author2 |
Karsten Gohl, G. Eagles, Gleb Udintsev, R. D. Larter, Gabriele Uenzelmann-Neben, Hans-Werner Schenke, Polina Lemenkova, Jan Grobys, Nicole Parsiegla, Philip Schlüter, T. Deen, Gerhard Kuhn, C. D. Hillenbrand |
format |
Conference Object |
author |
Karsten Gohl G. Eagles Gleb Udintsev R. D. Larter Gabriele Uenzelmann-Neben Hans-Werner Schenke Polina Lemenkova Jan Grobys Nicole Parsiegla Philip Schlüter T. Deen Gerhard Kuhn C. D. Hillenbrand |
author_facet |
Karsten Gohl G. Eagles Gleb Udintsev R. D. Larter Gabriele Uenzelmann-Neben Hans-Werner Schenke Polina Lemenkova Jan Grobys Nicole Parsiegla Philip Schlüter T. Deen Gerhard Kuhn C. D. Hillenbrand |
author_sort |
Karsten Gohl |
title |
Tectonic and Sedimentary Processes of the West Antarctic Margin of the Amundsen Sea Embayment and Pine Island Bay |
title_short |
Tectonic and Sedimentary Processes of the West Antarctic Margin of the Amundsen Sea Embayment and Pine Island Bay |
title_full |
Tectonic and Sedimentary Processes of the West Antarctic Margin of the Amundsen Sea Embayment and Pine Island Bay |
title_fullStr |
Tectonic and Sedimentary Processes of the West Antarctic Margin of the Amundsen Sea Embayment and Pine Island Bay |
title_full_unstemmed |
Tectonic and Sedimentary Processes of the West Antarctic Margin of the Amundsen Sea Embayment and Pine Island Bay |
title_sort |
tectonic and sedimentary processes of the west antarctic margin of the amundsen sea embayment and pine island bay |
publishDate |
2006 |
url |
https://hdl.handle.net/11585/968143 https://doi.org/10.6084/m9.figshare.7435484 https://epic.awi.de/id/eprint/14654/ https://www.lifescience.net/publications/16567/tectonic-and-sedimentary-processes-of-the-west-ant/ |
genre |
Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet Marie Byrd Land Pine Island Pine Island Bay Thurston Island West Antarctica |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet Marie Byrd Land Pine Island Pine Island Bay Thurston Island West Antarctica |
op_relation |
ispartofbook:2 Open Science Conference and 29 SCAR on 'Antarctica in the Earth System 2nd Open Science Conference and 29th SCAR on 'Antarctica in the Earth System' firstpage:1 lastpage:1 numberofpages:1 https://hdl.handle.net/11585/968143 doi:10.6084/m9.figshare.7435484 https://epic.awi.de/id/eprint/14654/ https://www.lifescience.net/publications/16567/tectonic-and-sedimentary-processes-of-the-west-ant/ |
op_doi |
https://doi.org/10.6084/m9.figshare.7435484 |
_version_ |
1799472332231671808 |