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Elements and Magnetic Susceptibility Dataset from the Lake Yamzhog Yumco Core in Southern Tibetan Plateau over the Past 2000 Years


GUO Chao1MA Yuzhen2
1College of Resource Environment and Tourism,Hubei University of Arts and Science,Xiangyang 441053,China2Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China

DOI:10.3974/geodb.2019.05.19.V1

Published:Nov. 2019

Visitors:56       Data Files Downloaded:1      
Data Downloaded:0.02 MB      Citations:

Key Words:

Lake Yamzhog Yumco,Tibetan Plateau,element,magnetic susceptibility,lake,climate change,Acta Geographica Sinica

Abstract:

The Lake Yamzhog Yumco is the largest closed inland lake in southern Tibetan Plateau. In July 2013, a series of 50-cm sediment cores were recovered with a Russian drill corer from the northwestern basin of the Lake Yamzhog Yumco. The data of elemental geochemistry was acquired using an X-ray fluorescence (XRF) core scanner, which was used for in situ, high-resolution, continuous, multi-element analyses. The magnetic susceptibility was obtained using MS2C Magnetic susceptibility meter. Multivariate numerical analyses (DA and PCA) were used to enable the reconstruction of the environmental changes in the southern Tibetan Plateau over the past 2000 years. The dataset includes the intensity of Al, Si, K, Ca, Ti, Fe, Cu, Zn, Br, Rb, Sr, Y, Pb and magnetic susceptibility by every 0.5 cm depth. The dataset is archived in one data file (.xlsx format) with data size of 23 KB. The result shows that the climate records from Lake Yamzhog Yumco have confirmed a cold-moist / warm-dry climate pattern on the southern Tibetan Plateau over the past 2000 years. The analysis paper based on this dataset was published in Acta Geographica Sinica, Vol.74, No.7, 2019.

Foundation Item:

Ministry of Science and Technology, P. R. of China (2013CB956001); National Natural Science Foundation of China (41571186, 41330748)

Data Citation:

GUO Chao,MA Yuzhen.Elements and Magnetic Susceptibility Dataset from the Lake Yamzhog Yumco Core in Southern Tibetan Plateau over the Past 2000 Years[DB/OL].Global Change Research Data Publishing & Repository,2019.DOI:10.3974/geodb.2019.05.19.V1.

Data Product:

ID Data Name Data Size Operation
1 Elem&MS_YamzhogYumco_p2000.xlsx 21.25KB DownLoad
Co-Sponsors

Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences

The Geographical Society of China

Parteners

Committee on Data for Science and Technology (CODATA) Task Group on Preservation of and Access to Scientific and Technical Data in/for/with Developing Countries (PASTD)

Jomo Kenyatta University of Agriculture and Technology

Digital Linchao GeoMuseum