alexa Middle-Late Pleistocene Paleo-Climate and Paleo-Altimet
ISSN: 2161-0525

Journal of Environmental & Analytical Toxicology
Open Access

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Research Article

Middle-Late Pleistocene Paleo-Climate and Paleo-Altimetry of the Centre of Tibetan Plateau Indicated by the Sporopollen Record of Well QZ-4

Jianglin He1,2*, Jian Wang1,2, Weipeng Li3,4 and Wei Sun1,2

1Chengdu Institute of Geology and Mineral Resources, Ministry of Land Resources, Chengdu 610082, PR China

2Key Laboratory for Sedimentary Basin and Oil and Gas Resources, Ministry of Land Resources, Chengdu 610081, PR China

3Land and Resources College, China West Normal University, Nanchong, 637002, PR China

4Key Laboratory of Mountain Environment Evolution and Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, PR China

*Corresponding Author:
Jianglin He
Chengdu Institute of Geology and Mineral Resources
Key Laboratory for Sedimentary Basin and Oil
and Gas Resources, Ministry of Land Resources
Chengdu 610081, PR China
Tel: +86 02883231771
E-mail: [email protected]

Received date: July 07, 2017; Accepted date: July 13, 2017; Published date: July 18, 2017

Citation: He J, Wang J, Weipeng Li, Sun W (2017) Middle-Late Pleistocene Paleo-Climate and Paleo-Altimetry of the Centre of Tibetan Plateau Indicated by the Sporopollen Record of Well QZ-4. J Environ Anal Toxicol 7:490. doi: 10.4172/2161- 0525.1000490

Copyright: © 2017 He J, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

The core sample from well QZ-4 is an important climate archive for the central Tibetan Plateau in the middle-late Pleistocene. In this work, a detailed pollen analysis of it is carried out to provide a preliminary insight into the paleoclimate and paleo-altimetry change in the central Tibetan Plateau. It can be concluded that the pollen assemblage can be obviously divided into two pollen zones, Pollen zone I (251.1-314 m in depth, 120.0-345.8 ka BP) and Pollen zone II (200-251.1 m in depth, 105.4-120 ka BP). The paleo-climate during pollen zone I deposition period was comparatively colder and wetter than it was during the pollen zone II deposition period. After Gonghe movement, the center of Tibetan Plateau was uplifted about 300 m (from 3500-3700 m to 3800-4000 m in elevation). The wind was changed from horizontal or downward direction to upward direction, in the study area. In the central of Tibetan Plateau, the climate change seems to be mainly driven by global climate change, and that tectonic uplift may have been a subordinate influence at the middle-late Pleistocene.

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