Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2
Abstract Establishing the precise timing of continental glacial dynamics and abrupt high‐latitude climate events is crucial to understanding the causes of global climate change. Here we present multi‐proxy records in a lake sediment core from arid Inner Mongolia (Wuliangsuhai Lake) that show two dis...
Published in: | Journal of Quaternary Science |
---|---|
Main Authors: | , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2012
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/jqs.2559 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2559 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2559 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.2559 |
id |
crwiley:10.1002/jqs.2559 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/jqs.2559 2024-06-02T08:08:20+00:00 Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2 Selvaraj, Kandasamy Chen, Chen‐Tung Arthur Babu, C. Prakash Lou, Jiann‐Yuh Liu, Ching‐Ling Hsu, Kenneth J. Unknown funding agency 2012 http://dx.doi.org/10.1002/jqs.2559 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2559 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2559 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.2559 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 27, issue 7, page 725-733 ISSN 0267-8179 1099-1417 journal-article 2012 crwiley https://doi.org/10.1002/jqs.2559 2024-05-03T10:48:41Z Abstract Establishing the precise timing of continental glacial dynamics and abrupt high‐latitude climate events is crucial to understanding the causes of global climate change. Here we present multi‐proxy records in a lake sediment core from arid Inner Mongolia (Wuliangsuhai Lake) that show two distinct glacially derived sedimentation events at ∼26.2–21.8 and ∼17.3–11.5k cal a BP. Fine sediments from the Last Glacial Maximum separate these glacially derived coarse sediments. Within these intervals, the occurrence of granite clasts at ∼24–23.5, 17.3–17 and 15.6–14.1k cal a BP implies either sediment discharge by meltwater as well as strong current flow in the Yellow River and/or sediment influx through hill‐slope mass wasting and landsliding from the nearby Yin Mountains. Surface microfeatures of quartz grains and spot elemental analysis of black specks in these intervals, however, indicate that physical weathering is dominant and that the provenance of the rocks is probably from a glacial source. To the best of our knowledge, this is the first time glacier‐derived materials have been detected in any desert lake in the Yellow River basin. The occurrence of granite clasts roughly correlates with Heinrich events in the North Atlantic, suggesting synchronous ice sheet dynamics in high‐ and mid‐latitude regions during the Last Glacial period. Although our data provide unprecedented evidence for the influence of glacier‐related processes in arid Inner Mongolia, further well‐dated records are clearly needed to re‐evaluate the correlative inference drawn between granite clast layers in Wuliangsuhai Lake and Heinrich events in the North Atlantic. Copyright © 2012 John Wiley & Sons, Ltd. Article in Journal/Newspaper Ice Sheet North Atlantic Wiley Online Library Journal of Quaternary Science 27 7 725 733 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Establishing the precise timing of continental glacial dynamics and abrupt high‐latitude climate events is crucial to understanding the causes of global climate change. Here we present multi‐proxy records in a lake sediment core from arid Inner Mongolia (Wuliangsuhai Lake) that show two distinct glacially derived sedimentation events at ∼26.2–21.8 and ∼17.3–11.5k cal a BP. Fine sediments from the Last Glacial Maximum separate these glacially derived coarse sediments. Within these intervals, the occurrence of granite clasts at ∼24–23.5, 17.3–17 and 15.6–14.1k cal a BP implies either sediment discharge by meltwater as well as strong current flow in the Yellow River and/or sediment influx through hill‐slope mass wasting and landsliding from the nearby Yin Mountains. Surface microfeatures of quartz grains and spot elemental analysis of black specks in these intervals, however, indicate that physical weathering is dominant and that the provenance of the rocks is probably from a glacial source. To the best of our knowledge, this is the first time glacier‐derived materials have been detected in any desert lake in the Yellow River basin. The occurrence of granite clasts roughly correlates with Heinrich events in the North Atlantic, suggesting synchronous ice sheet dynamics in high‐ and mid‐latitude regions during the Last Glacial period. Although our data provide unprecedented evidence for the influence of glacier‐related processes in arid Inner Mongolia, further well‐dated records are clearly needed to re‐evaluate the correlative inference drawn between granite clast layers in Wuliangsuhai Lake and Heinrich events in the North Atlantic. Copyright © 2012 John Wiley & Sons, Ltd. |
author2 |
Unknown funding agency |
format |
Article in Journal/Newspaper |
author |
Selvaraj, Kandasamy Chen, Chen‐Tung Arthur Babu, C. Prakash Lou, Jiann‐Yuh Liu, Ching‐Ling Hsu, Kenneth J. |
spellingShingle |
Selvaraj, Kandasamy Chen, Chen‐Tung Arthur Babu, C. Prakash Lou, Jiann‐Yuh Liu, Ching‐Ling Hsu, Kenneth J. Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2 |
author_facet |
Selvaraj, Kandasamy Chen, Chen‐Tung Arthur Babu, C. Prakash Lou, Jiann‐Yuh Liu, Ching‐Ling Hsu, Kenneth J. |
author_sort |
Selvaraj, Kandasamy |
title |
Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2 |
title_short |
Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2 |
title_full |
Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2 |
title_fullStr |
Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2 |
title_full_unstemmed |
Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2 |
title_sort |
glacially derived material in an inner mongolian desert lake during marine isotope stage 2 |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/jqs.2559 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2559 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2559 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.2559 |
genre |
Ice Sheet North Atlantic |
genre_facet |
Ice Sheet North Atlantic |
op_source |
Journal of Quaternary Science volume 27, issue 7, page 725-733 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.2559 |
container_title |
Journal of Quaternary Science |
container_volume |
27 |
container_issue |
7 |
container_start_page |
725 |
op_container_end_page |
733 |
_version_ |
1800753548596609024 |