Late Holocene Glacier fluctuations in southernmost Patagonia.
Documenting past climate dynamics aids in our understanding of the climate system. In order to assess future climate change it is valuable to examine the connectivity of climatic phenomena between hemispheres. Although studies that estimate past climate fluctuations are common in the Northern Hemisp...
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University of Northern British Columbia
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ftarcabc:oai:arcabc.ca:unbc_16949 2024-06-02T08:07:08+00:00 Late Holocene Glacier fluctuations in southernmost Patagonia. Maurer, Malyssa Kay (Author) Menounos, Brian (Thesis advisor) University of Northern British Columbia (Degree granting institution) 2015 electronic Number of pages in document: 111 https://arcabc.ca/islandora/object/unbc%3A16949 https://doi.org/10.24124/2015/bpgub1055 English eng University of Northern British Columbia https://arcabc.ca/islandora/object/unbc%3A16949 uuid: da2ed14e-f345-4d26-8859-786c83e964e4 bib-number: 1526506 isbn: 978-1-321-85555-5 https://doi.org/10.24124/2015/bpgub1055 lac: TC-BPGUB-1055 Copyright retained by the author. http://rightsstatements.org/vocab/InC/1.0/ Glaciers -- Climatic factors -- Chile -- Stoppani Glacier Climatic change -- Environmental aspects -- Chile -- Stoppani Glacier Glaciers -- Research Glaciers -- Climatic factors -- Canada Western Climatic change -- Environmental aspects -- Canada GB2466.S76 M38 2015 Text thesis 2015 ftarcabc https://doi.org/10.24124/2015/bpgub1055 2024-05-06T00:30:44Z Documenting past climate dynamics aids in our understanding of the climate system. In order to assess future climate change it is valuable to examine the connectivity of climatic phenomena between hemispheres. Although studies that estimate past climate fluctuations are common in the Northern Hemisphere, fewer well-constrained glacier chronologies exist in the Southern Hemisphere. The assessment of past glacier activity remains the most direct method of creating a climatic record for a region, and the comparison of these glacial chronologies tests the synchronicity of climatic change between regions. This study investigates inter-hemispheric synchronicity by developing a detailed glacier history in southern Patagonia for comparison to robust glacier chronologies from the northwestern North America. Five Neoglacial advances of Stoppani Glacier in the Cordillera Darwin of southern Patagonia broadly correspond to the Neoglacial activity documented in northwestern North America. This Stoppani Glacier chronology is based on radiocarbon-dated detrital and in situ plant material contained within the northeastern lateral moraine stratigraphy. The age range from dated plant material records the first Neoglacial expansion of Stoppani Glacier which, overlaps with the end of the 4.2 ka Advance' reported throughout northwestern North America. Stoppani Glacier advanced multiple times between 3500-1900 cal yr BP which overlaps with the 'Peyto-Tiedemann Advance' documented in northwestern North America. The lacustrine record from nearby Lago Roca also suggests that local sea level lowered during the 3500-1900 cal yr BP period, resulting in the isolation of the lake from the Beagle Channel ca. 2300 cal yr BP. Plant material from within till at Stoppani Glacier and lacustrine sediments from Lago Roca yield an age range for the last advance of glaciers in the Cordillera Darwin the range coincides with the end of the wide-spread Little Ice Age Advance' documented throughout northwestern North The original print copy of this ... Thesis glacier* Arca (BC's Digital Treasures) Patagonia Canada Roca ENVELOPE(-44.817,-44.817,-60.733,-60.733) |
institution |
Open Polar |
collection |
Arca (BC's Digital Treasures) |
op_collection_id |
ftarcabc |
language |
English |
topic |
Glaciers -- Climatic factors -- Chile -- Stoppani Glacier Climatic change -- Environmental aspects -- Chile -- Stoppani Glacier Glaciers -- Research Glaciers -- Climatic factors -- Canada Western Climatic change -- Environmental aspects -- Canada GB2466.S76 M38 2015 |
spellingShingle |
Glaciers -- Climatic factors -- Chile -- Stoppani Glacier Climatic change -- Environmental aspects -- Chile -- Stoppani Glacier Glaciers -- Research Glaciers -- Climatic factors -- Canada Western Climatic change -- Environmental aspects -- Canada GB2466.S76 M38 2015 Late Holocene Glacier fluctuations in southernmost Patagonia. |
topic_facet |
Glaciers -- Climatic factors -- Chile -- Stoppani Glacier Climatic change -- Environmental aspects -- Chile -- Stoppani Glacier Glaciers -- Research Glaciers -- Climatic factors -- Canada Western Climatic change -- Environmental aspects -- Canada GB2466.S76 M38 2015 |
description |
Documenting past climate dynamics aids in our understanding of the climate system. In order to assess future climate change it is valuable to examine the connectivity of climatic phenomena between hemispheres. Although studies that estimate past climate fluctuations are common in the Northern Hemisphere, fewer well-constrained glacier chronologies exist in the Southern Hemisphere. The assessment of past glacier activity remains the most direct method of creating a climatic record for a region, and the comparison of these glacial chronologies tests the synchronicity of climatic change between regions. This study investigates inter-hemispheric synchronicity by developing a detailed glacier history in southern Patagonia for comparison to robust glacier chronologies from the northwestern North America. Five Neoglacial advances of Stoppani Glacier in the Cordillera Darwin of southern Patagonia broadly correspond to the Neoglacial activity documented in northwestern North America. This Stoppani Glacier chronology is based on radiocarbon-dated detrital and in situ plant material contained within the northeastern lateral moraine stratigraphy. The age range from dated plant material records the first Neoglacial expansion of Stoppani Glacier which, overlaps with the end of the 4.2 ka Advance' reported throughout northwestern North America. Stoppani Glacier advanced multiple times between 3500-1900 cal yr BP which overlaps with the 'Peyto-Tiedemann Advance' documented in northwestern North America. The lacustrine record from nearby Lago Roca also suggests that local sea level lowered during the 3500-1900 cal yr BP period, resulting in the isolation of the lake from the Beagle Channel ca. 2300 cal yr BP. Plant material from within till at Stoppani Glacier and lacustrine sediments from Lago Roca yield an age range for the last advance of glaciers in the Cordillera Darwin the range coincides with the end of the wide-spread Little Ice Age Advance' documented throughout northwestern North The original print copy of this ... |
author2 |
Maurer, Malyssa Kay (Author) Menounos, Brian (Thesis advisor) University of Northern British Columbia (Degree granting institution) |
format |
Thesis |
title |
Late Holocene Glacier fluctuations in southernmost Patagonia. |
title_short |
Late Holocene Glacier fluctuations in southernmost Patagonia. |
title_full |
Late Holocene Glacier fluctuations in southernmost Patagonia. |
title_fullStr |
Late Holocene Glacier fluctuations in southernmost Patagonia. |
title_full_unstemmed |
Late Holocene Glacier fluctuations in southernmost Patagonia. |
title_sort |
late holocene glacier fluctuations in southernmost patagonia. |
publisher |
University of Northern British Columbia |
publishDate |
2015 |
url |
https://arcabc.ca/islandora/object/unbc%3A16949 https://doi.org/10.24124/2015/bpgub1055 |
long_lat |
ENVELOPE(-44.817,-44.817,-60.733,-60.733) |
geographic |
Patagonia Canada Roca |
geographic_facet |
Patagonia Canada Roca |
genre |
glacier* |
genre_facet |
glacier* |
op_relation |
https://arcabc.ca/islandora/object/unbc%3A16949 uuid: da2ed14e-f345-4d26-8859-786c83e964e4 bib-number: 1526506 isbn: 978-1-321-85555-5 https://doi.org/10.24124/2015/bpgub1055 lac: TC-BPGUB-1055 |
op_rights |
Copyright retained by the author. http://rightsstatements.org/vocab/InC/1.0/ |
op_doi |
https://doi.org/10.24124/2015/bpgub1055 |
_version_ |
1800752142641790976 |