The geochemical and mineralogical fingerprint of West Antarctica's weak underbelly: Pine Island and Thwaites glaciers
The marine-based West Antarctic Ice Sheet (WAIS) is considered the most unstable part of the Antarctic Ice Sheet, with particular vulnerability in the Amundsen Sea sector where glaciers are melting at an alarming rate. Far-field sea-level data and ice-sheet models have pointed towards at least one m...
Published in: | Chemical Geology |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Elsevier
2020
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/527660/ https://www.sciencedirect.com/science/article/pii/S0009254120301881 |
id |
ftnerc:oai:nora.nerc.ac.uk:527660 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:527660 2023-05-15T13:23:39+02:00 The geochemical and mineralogical fingerprint of West Antarctica's weak underbelly: Pine Island and Thwaites glaciers Pereira, Patric Simões van de Flierdt, Tina Hemming, Sidney R. Frederichs, Thomas Hammond, Samantha J. Brachfeld, Stefanie Doherty, Cathleen Kuhn, Gerhard Smith, James A. Klages, Johann P. Hillenbrand, Claus-Dieter 2020-09-20 http://nora.nerc.ac.uk/id/eprint/527660/ https://www.sciencedirect.com/science/article/pii/S0009254120301881 unknown Elsevier Pereira, Patric Simões; van de Flierdt, Tina; Hemming, Sidney R.; Frederichs, Thomas; Hammond, Samantha J.; Brachfeld, Stefanie; Doherty, Cathleen; Kuhn, Gerhard; Smith, James A.; Klages, Johann P.; Hillenbrand, Claus-Dieter orcid:0000-0003-0240-7317 . 2020 The geochemical and mineralogical fingerprint of West Antarctica's weak underbelly: Pine Island and Thwaites glaciers. Chemical Geology, 550, 119649. 15, pp. https://doi.org/10.1016/j.chemgeo.2020.119649 <https://doi.org/10.1016/j.chemgeo.2020.119649> Publication - Article PeerReviewed 2020 ftnerc https://doi.org/10.1016/j.chemgeo.2020.119649 2023-02-04T19:50:39Z The marine-based West Antarctic Ice Sheet (WAIS) is considered the most unstable part of the Antarctic Ice Sheet, with particular vulnerability in the Amundsen Sea sector where glaciers are melting at an alarming rate. Far-field sea-level data and ice-sheet models have pointed towards at least one major WAIS disintegration during the Late Quaternary, but direct evidence for past collapse(s) from ice-proximal geological archives remains elusive. In order to facilitate geochemical and mineralogical tracing of the two most important glaciers draining into the Amundsen Sea, i.e. Pine Island Glacier (PIG) and Thwaites Glacier (TG), we here provide the first multi-proxy provenance analysis of 26 seafloor surface sediment samples from Pine Island Bay. Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Ice Sheet Pine Island Bay Pine Island Glacier Thwaites Glacier Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Amundsen Sea West Antarctic Ice Sheet Pine Island Glacier ENVELOPE(-101.000,-101.000,-75.000,-75.000) Island Bay ENVELOPE(-109.085,-109.085,59.534,59.534) Pine Island Bay ENVELOPE(-102.000,-102.000,-74.750,-74.750) Thwaites Glacier ENVELOPE(-106.750,-106.750,-75.500,-75.500) Chemical Geology 550 119649 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
The marine-based West Antarctic Ice Sheet (WAIS) is considered the most unstable part of the Antarctic Ice Sheet, with particular vulnerability in the Amundsen Sea sector where glaciers are melting at an alarming rate. Far-field sea-level data and ice-sheet models have pointed towards at least one major WAIS disintegration during the Late Quaternary, but direct evidence for past collapse(s) from ice-proximal geological archives remains elusive. In order to facilitate geochemical and mineralogical tracing of the two most important glaciers draining into the Amundsen Sea, i.e. Pine Island Glacier (PIG) and Thwaites Glacier (TG), we here provide the first multi-proxy provenance analysis of 26 seafloor surface sediment samples from Pine Island Bay. |
format |
Article in Journal/Newspaper |
author |
Pereira, Patric Simões van de Flierdt, Tina Hemming, Sidney R. Frederichs, Thomas Hammond, Samantha J. Brachfeld, Stefanie Doherty, Cathleen Kuhn, Gerhard Smith, James A. Klages, Johann P. Hillenbrand, Claus-Dieter |
spellingShingle |
Pereira, Patric Simões van de Flierdt, Tina Hemming, Sidney R. Frederichs, Thomas Hammond, Samantha J. Brachfeld, Stefanie Doherty, Cathleen Kuhn, Gerhard Smith, James A. Klages, Johann P. Hillenbrand, Claus-Dieter The geochemical and mineralogical fingerprint of West Antarctica's weak underbelly: Pine Island and Thwaites glaciers |
author_facet |
Pereira, Patric Simões van de Flierdt, Tina Hemming, Sidney R. Frederichs, Thomas Hammond, Samantha J. Brachfeld, Stefanie Doherty, Cathleen Kuhn, Gerhard Smith, James A. Klages, Johann P. Hillenbrand, Claus-Dieter |
author_sort |
Pereira, Patric Simões |
title |
The geochemical and mineralogical fingerprint of West Antarctica's weak underbelly: Pine Island and Thwaites glaciers |
title_short |
The geochemical and mineralogical fingerprint of West Antarctica's weak underbelly: Pine Island and Thwaites glaciers |
title_full |
The geochemical and mineralogical fingerprint of West Antarctica's weak underbelly: Pine Island and Thwaites glaciers |
title_fullStr |
The geochemical and mineralogical fingerprint of West Antarctica's weak underbelly: Pine Island and Thwaites glaciers |
title_full_unstemmed |
The geochemical and mineralogical fingerprint of West Antarctica's weak underbelly: Pine Island and Thwaites glaciers |
title_sort |
geochemical and mineralogical fingerprint of west antarctica's weak underbelly: pine island and thwaites glaciers |
publisher |
Elsevier |
publishDate |
2020 |
url |
http://nora.nerc.ac.uk/id/eprint/527660/ https://www.sciencedirect.com/science/article/pii/S0009254120301881 |
long_lat |
ENVELOPE(-101.000,-101.000,-75.000,-75.000) ENVELOPE(-109.085,-109.085,59.534,59.534) ENVELOPE(-102.000,-102.000,-74.750,-74.750) ENVELOPE(-106.750,-106.750,-75.500,-75.500) |
geographic |
Antarctic The Antarctic Amundsen Sea West Antarctic Ice Sheet Pine Island Glacier Island Bay Pine Island Bay Thwaites Glacier |
geographic_facet |
Antarctic The Antarctic Amundsen Sea West Antarctic Ice Sheet Pine Island Glacier Island Bay Pine Island Bay Thwaites Glacier |
genre |
Amundsen Sea Antarc* Antarctic Ice Sheet Pine Island Bay Pine Island Glacier Thwaites Glacier |
genre_facet |
Amundsen Sea Antarc* Antarctic Ice Sheet Pine Island Bay Pine Island Glacier Thwaites Glacier |
op_relation |
Pereira, Patric Simões; van de Flierdt, Tina; Hemming, Sidney R.; Frederichs, Thomas; Hammond, Samantha J.; Brachfeld, Stefanie; Doherty, Cathleen; Kuhn, Gerhard; Smith, James A.; Klages, Johann P.; Hillenbrand, Claus-Dieter orcid:0000-0003-0240-7317 . 2020 The geochemical and mineralogical fingerprint of West Antarctica's weak underbelly: Pine Island and Thwaites glaciers. Chemical Geology, 550, 119649. 15, pp. https://doi.org/10.1016/j.chemgeo.2020.119649 <https://doi.org/10.1016/j.chemgeo.2020.119649> |
op_doi |
https://doi.org/10.1016/j.chemgeo.2020.119649 |
container_title |
Chemical Geology |
container_volume |
550 |
container_start_page |
119649 |
_version_ |
1766373826147385344 |