Glacial advances in Tibet during the Younger Dryas? Evidence from cosmogenic Be-10, Al-26, and Ne-21

Was the abrupt climate cold reversal called the Younger Dryas (YD) a global climate excursion? This study presents the first evidence for YD glacial advances on the Tibetan Plateau, derived from Be-10, Al-26, and Ne-21 exposure ages of two erratics with a weighted mean age of about 11,600 years BP f...

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Bibliographic Details
Published in:Journal of Asian Earth Sciences
Main Authors: Tschudi, S, Schafer, JM, Zhao, ZZ, Wu, XH, Ivy-Ochs, S, Kubik, PW, Schluchter, C
Format: Article in Journal/Newspaper
Language:English
Published: PERGAMON-ELSEVIER SCIENCE LTD 2003
Subjects:
younger dryas
cosmogenic nuclides
Tibet
Geology
NUCLIDE PRODUCTION-RATES
QUATERNARY GLACIATIONS
SOUTHERN ALPS
NANGA PARBAT
NEW-ZEALAND
ICE CORE
CLIMATE
QUARTZ
EVENT
RADIONUCLIDES
Geosciences
Multidisciplinary
New Zealand
ice core
North Atlantic Deep Water
North Atlantic
Online Access:http://ir.ieecas.cn/handle/361006/11962
https://doi.org/10.1016/S1367-9120(03)00035-X
Description
Summary:Was the abrupt climate cold reversal called the Younger Dryas (YD) a global climate excursion? This study presents the first evidence for YD glacial advances on the Tibetan Plateau, derived from Be-10, Al-26, and Ne-21 exposure ages of two erratics with a weighted mean age of about 11,600 years BP from a moraine at the eastern margin of the Tibetan Plateau. This implies that the YD climate signal, commonly thought to be initiated by decreased North Atlantic Deep Water Formation and transferred by ocean circulation, was even recorded at the inner-continental, high-altitude site of Tibet, implying atmospheric transport and thus a global character for this abrupt climatic change. (C) 2003 Elsevier Ltd. All rights reserved.

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