Last glacial period lake sediment data from Lake Sihailongwan, N.E. China

Lake Sihailongwan in Jilin province, NE China, provides the first continuous and almost entirely seasonally laminated sediment record on the East Asian mainland comprising the complete Holocene, the Late-glacial period, and large parts of the Last Glacial. Sediment and palynological proxy data provi...

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Bibliographic Details
Main Authors: Mingram, Jens, Stebich, Martina, Schettler, Georg, Hu, Yaqin, Dulski, Peter, Nowaczyk, Norbert R, Liu, Qiang, Liu, Jiaqi, You, Haitao, Opitz, Stephan, Rioual, Patrick
Format: Dataset
Language:English
Published: PANGAEA 2018
Subjects:
Changbai Mountains region
Jilin Province
NE China
COMPCORE
Composite Core
GeoForschungszentrum Potsdam
GFZ
SHL
Sihailongwan Maar Lake
Greenland
Greenland ice cores
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.885907
https://doi.org/10.1594/PANGAEA.885907
Description
Summary:Lake Sihailongwan in Jilin province, NE China, provides the first continuous and almost entirely seasonally laminated sediment record on the East Asian mainland comprising the complete Holocene, the Late-glacial period, and large parts of the Last Glacial. Sediment and palynological proxy data provide a finely resolved regional environmental history of the East Asian monsoon. A varve-based chronology (shl-vc2) has been established for the last 65,000 years and allows a detailed comparison with other long regional and global palaeoclimate records. Vegetation density of the study area depends, on the long run, on precessionally forced insolation changes, with superimposed millennial-scale variability during the Last Glacial. Periodic increase of organic carbon content and thermophilous tree species like Ulmus and Fraxinus and contemporary decrease of shrub Alnus precisely mirror millennial-scale climatic variations primarily known from Greenland ice-cores as Dansgaard-Oeschger cycles, as well as Late-glacial period climate changes. Percentages of trees & shrubs pollen and in particular lake productivity-related data reveal substantial differences between interstadial intensities, with those between 50 – 60 ka BP being more pronounced than the following ones.

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