Heinrich events: Massive late Pleistocene detritus layers of the North Atlantic and their global climate imprint
[1] Millennial climate oscillations of the glacial interval are interrupted by extreme events, the so-called Heinrich events of the North Atlantic. Their near-global footprint is a testament to coherent interactions among Earth’s atmosphere, oceans, and cryosphere on millennial timescales. Heinrich...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.453.8967 2023-05-15T16:35:26+02:00 Heinrich events: Massive late Pleistocene detritus layers of the North Atlantic and their global climate imprint Sidney R. Hemming The Pennsylvania State University CiteSeerX Archives 2004 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.453.8967 http://www.eos.ubc.ca/~mjelline/453website/eosc453/E_prints/2003RG000128.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.453.8967 http://www.eos.ubc.ca/~mjelline/453website/eosc453/E_prints/2003RG000128.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.eos.ubc.ca/~mjelline/453website/eosc453/E_prints/2003RG000128.pdf temperature geochemistry KEYWORDS climate Heinrich layers text 2004 ftciteseerx 2016-01-08T06:03:35Z [1] Millennial climate oscillations of the glacial interval are interrupted by extreme events, the so-called Heinrich events of the North Atlantic. Their near-global footprint is a testament to coherent interactions among Earth’s atmosphere, oceans, and cryosphere on millennial timescales. Heinrich detritus appears to have been derived from the region around Hudson Strait. It was deposited over approximately 500 ± 250 years. Several mechanisms have been proposed for the origin of the layers: binge-purge cycle of the Laurentide ice sheet, jökulhlaup activity from a Hudson Bay lake, and an ice shelf buildup/collapse fed by Hudson Strait. To determine the origin of the Heinrich events, I recommend (1) further studies of the timing and duration of the events, (2) further sedimentology study near the Hudson Strait, and (3) greater spatial and temporal resolution studies of the layers as well as their precursory intervals. Studies of previous glacial intervals may also provide important constraints. INDEX TERMS: 4267 Text Hudson Bay Hudson Strait Ice Sheet Ice Shelf North Atlantic Unknown Bay Lake ENVELOPE(-100.964,-100.964,56.759,56.759) Hudson Hudson Bay Hudson Strait ENVELOPE(-70.000,-70.000,62.000,62.000) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
temperature geochemistry KEYWORDS climate Heinrich layers |
spellingShingle |
temperature geochemistry KEYWORDS climate Heinrich layers Sidney R. Hemming Heinrich events: Massive late Pleistocene detritus layers of the North Atlantic and their global climate imprint |
topic_facet |
temperature geochemistry KEYWORDS climate Heinrich layers |
description |
[1] Millennial climate oscillations of the glacial interval are interrupted by extreme events, the so-called Heinrich events of the North Atlantic. Their near-global footprint is a testament to coherent interactions among Earth’s atmosphere, oceans, and cryosphere on millennial timescales. Heinrich detritus appears to have been derived from the region around Hudson Strait. It was deposited over approximately 500 ± 250 years. Several mechanisms have been proposed for the origin of the layers: binge-purge cycle of the Laurentide ice sheet, jökulhlaup activity from a Hudson Bay lake, and an ice shelf buildup/collapse fed by Hudson Strait. To determine the origin of the Heinrich events, I recommend (1) further studies of the timing and duration of the events, (2) further sedimentology study near the Hudson Strait, and (3) greater spatial and temporal resolution studies of the layers as well as their precursory intervals. Studies of previous glacial intervals may also provide important constraints. INDEX TERMS: 4267 |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Sidney R. Hemming |
author_facet |
Sidney R. Hemming |
author_sort |
Sidney R. Hemming |
title |
Heinrich events: Massive late Pleistocene detritus layers of the North Atlantic and their global climate imprint |
title_short |
Heinrich events: Massive late Pleistocene detritus layers of the North Atlantic and their global climate imprint |
title_full |
Heinrich events: Massive late Pleistocene detritus layers of the North Atlantic and their global climate imprint |
title_fullStr |
Heinrich events: Massive late Pleistocene detritus layers of the North Atlantic and their global climate imprint |
title_full_unstemmed |
Heinrich events: Massive late Pleistocene detritus layers of the North Atlantic and their global climate imprint |
title_sort |
heinrich events: massive late pleistocene detritus layers of the north atlantic and their global climate imprint |
publishDate |
2004 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.453.8967 http://www.eos.ubc.ca/~mjelline/453website/eosc453/E_prints/2003RG000128.pdf |
long_lat |
ENVELOPE(-100.964,-100.964,56.759,56.759) ENVELOPE(-70.000,-70.000,62.000,62.000) |
geographic |
Bay Lake Hudson Hudson Bay Hudson Strait |
geographic_facet |
Bay Lake Hudson Hudson Bay Hudson Strait |
genre |
Hudson Bay Hudson Strait Ice Sheet Ice Shelf North Atlantic |
genre_facet |
Hudson Bay Hudson Strait Ice Sheet Ice Shelf North Atlantic |
op_source |
http://www.eos.ubc.ca/~mjelline/453website/eosc453/E_prints/2003RG000128.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.453.8967 http://www.eos.ubc.ca/~mjelline/453website/eosc453/E_prints/2003RG000128.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766025662310645760 |