Geochemistry and grain size analysis of the Tangra Yumco lake sediment record ...

A possible asynchronicity of the spatial and temporal moisture availability on the Tibetan Plateau was controversially discussed in recent years. Here we present the first attempt to systematically investigate possible spatial and temporal variations of moisture availability by examining two lakes,...

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Bibliographic Details
Main Authors: Ahlborn, Marieke, Haberzettl, Torsten, Wang, Junbo, Henkel, Karoline, Kasper, Thomas, Daut, Gerhard, Zhu, Liping, Mäusbacher, Roland
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2016
Subjects:
Ice
Online Access:https://dx.doi.org/10.1594/pangaea.869940
https://doi.pangaea.de/10.1594/PANGAEA.869940
Description
Summary:A possible asynchronicity of the spatial and temporal moisture availability on the Tibetan Plateau was controversially discussed in recent years. Here we present the first attempt to systematically investigate possible spatial and temporal variations of moisture availability by examining two lakes, Tangra Yumco and Nam Co, on an east-west-transect on the southern Tibetan Plateau using identical proxies for palaeoenvironmental reconstruction. In this study, an independent record from Tangra Yumco was analyzed applying a multi-proxy approach to reconstruct variations in moisture availability since the Lateglacial. Results were subsequently compared to previously published records from Nam Co and additional records from Tso Moriri (northwestern Himalaya) and Naleng Co (south-eastern Tibetan Plateau). Our results show that Tangra Yumco was at least partially ice-covered prior to 17.1 cal. ka BP. A temperature rise after 17.1 cal. ka BP probably resulted in thawing of the permafrost. At 16.0 cal. ka BP moisture ... : Supplement to: Ahlborn, Marieke; Haberzettl, Torsten; Wang, Junbo; Henkel, Karoline; Kasper, Thomas; Daut, Gerhard; Zhu, Liping; Mäusbacher, Roland (2016): Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP - the Tangra Yumco lake sediment record. Boreas ...