Geochemical composition and radiocarbon ages of cores from Lago Fugnano, Tierra del Fuego
Recent advances in the chronology and the palaeoclimatic understanding of Antarctic ice core records point towards a larger heterogeneity of latitudinal climate fluctuations than previously thought. Thus, realistic palaeoclimate reconstructions rely in the development of a tight array of well-constr...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.840656 2024-09-15T17:41:49+00:00 Geochemical composition and radiocarbon ages of cores from Lago Fugnano, Tierra del Fuego Waldmann, Nicolas D Ariztegui, Daniel Anselmetti, Flavio S Austin, James A Jr Moy, Christopher M Stern, C Recasens, Cristina Dunbar, Robert B MEDIAN LATITUDE: -54.565503 * MEDIAN LONGITUDE: -67.620975 * SOUTH-BOUND LATITUDE: -54.568450 * WEST-BOUND LONGITUDE: -67.915200 * NORTH-BOUND LATITUDE: -54.564520 * EAST-BOUND LONGITUDE: -67.522900 * DATE/TIME START: 2006-01-01T00:00:00 * DATE/TIME END: 2006-01-01T00:00:00 2010 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.840656 https://doi.org/10.1594/PANGAEA.840656 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.840656 https://doi.org/10.1594/PANGAEA.840656 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Waldmann, Nicolas D; Ariztegui, Daniel; Anselmetti, Flavio S; Austin, James A Jr; Moy, Christopher M; Stern, C; Recasens, Cristina; Dunbar, Robert B (2010): Holocene climatic fluctuations and positioning of the Southern Hemisphere westerlies in Tierra del Fuego (54° S), Patagonia. Journal of Quaternary Science, 25(7), 1063-1075, https://doi.org/10.1002/jqs.1263 International Polar Year (2007-2008) IPY dataset publication series 2010 ftpangaea https://doi.org/10.1594/PANGAEA.84065610.1002/jqs.1263 2024-07-24T02:31:21Z Recent advances in the chronology and the palaeoclimatic understanding of Antarctic ice core records point towards a larger heterogeneity of latitudinal climate fluctuations than previously thought. Thus, realistic palaeoclimate reconstructions rely in the development of a tight array of well-constrained records with a dense latitudinal coverage. Climatic records from southernmost South America are critical cornerstones to link these Antarctic palaeoclimatic archives with their South American counterparts. At 54° S on the Island of Tierra del Fuego, Lago Fagnano is located in one of the most substantially and extensively glaciated regions of southernmost South America during the Late Pleistocene. This elongated lake is the largest (~110km long) and non-ice covered lake at high southern latitudes. A multi-proxy study of selected cores allows the characterisation of a Holocene sedimentary record. Detailed petrophysical, sedimentological and geochemical studies of a complete lacustrine laminated sequence reveal variations in major and trace elements, as well as organic content, suggesting high variability in environmental conditions. Comparison of these results with other regional records allows the identification of major known late Holocene climatic intervals and the proposal for a time for the onset of the Southern Westerlies in Tierra del Fuego. These results improve our understanding of the forcing mechanisms behind climate change in southernmost Patagonia. Other/Unknown Material Antarc* Antarctic ice core International Polar Year IPY Tierra del Fuego PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-67.915200,-67.522900,-54.564520,-54.568450) |
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Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
International Polar Year (2007-2008) IPY |
spellingShingle |
International Polar Year (2007-2008) IPY Waldmann, Nicolas D Ariztegui, Daniel Anselmetti, Flavio S Austin, James A Jr Moy, Christopher M Stern, C Recasens, Cristina Dunbar, Robert B Geochemical composition and radiocarbon ages of cores from Lago Fugnano, Tierra del Fuego |
topic_facet |
International Polar Year (2007-2008) IPY |
description |
Recent advances in the chronology and the palaeoclimatic understanding of Antarctic ice core records point towards a larger heterogeneity of latitudinal climate fluctuations than previously thought. Thus, realistic palaeoclimate reconstructions rely in the development of a tight array of well-constrained records with a dense latitudinal coverage. Climatic records from southernmost South America are critical cornerstones to link these Antarctic palaeoclimatic archives with their South American counterparts. At 54° S on the Island of Tierra del Fuego, Lago Fagnano is located in one of the most substantially and extensively glaciated regions of southernmost South America during the Late Pleistocene. This elongated lake is the largest (~110km long) and non-ice covered lake at high southern latitudes. A multi-proxy study of selected cores allows the characterisation of a Holocene sedimentary record. Detailed petrophysical, sedimentological and geochemical studies of a complete lacustrine laminated sequence reveal variations in major and trace elements, as well as organic content, suggesting high variability in environmental conditions. Comparison of these results with other regional records allows the identification of major known late Holocene climatic intervals and the proposal for a time for the onset of the Southern Westerlies in Tierra del Fuego. These results improve our understanding of the forcing mechanisms behind climate change in southernmost Patagonia. |
format |
Other/Unknown Material |
author |
Waldmann, Nicolas D Ariztegui, Daniel Anselmetti, Flavio S Austin, James A Jr Moy, Christopher M Stern, C Recasens, Cristina Dunbar, Robert B |
author_facet |
Waldmann, Nicolas D Ariztegui, Daniel Anselmetti, Flavio S Austin, James A Jr Moy, Christopher M Stern, C Recasens, Cristina Dunbar, Robert B |
author_sort |
Waldmann, Nicolas D |
title |
Geochemical composition and radiocarbon ages of cores from Lago Fugnano, Tierra del Fuego |
title_short |
Geochemical composition and radiocarbon ages of cores from Lago Fugnano, Tierra del Fuego |
title_full |
Geochemical composition and radiocarbon ages of cores from Lago Fugnano, Tierra del Fuego |
title_fullStr |
Geochemical composition and radiocarbon ages of cores from Lago Fugnano, Tierra del Fuego |
title_full_unstemmed |
Geochemical composition and radiocarbon ages of cores from Lago Fugnano, Tierra del Fuego |
title_sort |
geochemical composition and radiocarbon ages of cores from lago fugnano, tierra del fuego |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.840656 https://doi.org/10.1594/PANGAEA.840656 |
op_coverage |
MEDIAN LATITUDE: -54.565503 * MEDIAN LONGITUDE: -67.620975 * SOUTH-BOUND LATITUDE: -54.568450 * WEST-BOUND LONGITUDE: -67.915200 * NORTH-BOUND LATITUDE: -54.564520 * EAST-BOUND LONGITUDE: -67.522900 * DATE/TIME START: 2006-01-01T00:00:00 * DATE/TIME END: 2006-01-01T00:00:00 |
long_lat |
ENVELOPE(-67.915200,-67.522900,-54.564520,-54.568450) |
genre |
Antarc* Antarctic ice core International Polar Year IPY Tierra del Fuego |
genre_facet |
Antarc* Antarctic ice core International Polar Year IPY Tierra del Fuego |
op_source |
Supplement to: Waldmann, Nicolas D; Ariztegui, Daniel; Anselmetti, Flavio S; Austin, James A Jr; Moy, Christopher M; Stern, C; Recasens, Cristina; Dunbar, Robert B (2010): Holocene climatic fluctuations and positioning of the Southern Hemisphere westerlies in Tierra del Fuego (54° S), Patagonia. Journal of Quaternary Science, 25(7), 1063-1075, https://doi.org/10.1002/jqs.1263 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.840656 https://doi.org/10.1594/PANGAEA.840656 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.84065610.1002/jqs.1263 |
_version_ |
1810488079257960448 |