A new biologic paleoaltimetry indicating Late Miocene rapid uplift of northern Tibet Plateau-Reference-Cited by-同舟云学术

A new biologic paleoaltimetry indicating Late Miocene rapid uplift of northern Tibet Plateau

Published:2022-12-09 Issue:6624 Volume:378 Page:1074-1079
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Miao Yunfa¹²³^ORCID,Fang Xiaomin³^ORCID,Sun Jimin⁴,Xiao Wenjiao²⁵,Yang Yongheng¹²,Wang Xuelian¹²,Farnsworth Alex³⁶^ORCID,Huang Kangyou⁷^ORCID,Ren Yulong⁸^ORCID,Wu Fuli³^ORCID,Qiao Qingqing²⁵^ORCID,Zhang Weilin³^ORCID,Meng Qingquan⁹^ORCID,Yan Xiaoli⁹,Zheng Zhuo⁷^ORCID,Song Chunhui⁹^ORCID,Utescher Torsten¹⁰

Affiliation:

1. Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.

2. National Key Laboratory of Arid Area Ecological Security and Sustainable Development, Chinese Academy of Sciences, Urumqi 830011, China.

3. State Key Laboratory of Tibetan Plateau Earth System Science, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China.

4. Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China.

5. Xinjiang Research Center for Mineral Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China.

6. School of Geographical Sciences and Cabot Institute, University of Bristol, Bristol BS8 1SS, UK.

7. Guangdong Provincial Key Laboratory of Geodynamics and Geohazards, School of Earth Sciences and Engineering, Sun Yat-sen University, Zhuhai 519082, China.

8. Key Laboratory of Arid Climate Change and Disaster Reduction of CMA and of Gansu Province, Institute of Arid Meteorology, Lanzhou 730000, China.

9. School of Earth Sciences and Key Laboratory of Mineral Resources in Western China (Gansu Province), Lanzhou University, Lanzhou 730000, China.

10. Senckenberg Research Institute, Frankfurt am Main, Steinmann Institute, Bonn University, 53115 Bonn, Germany.

Abstract

The uplift of the Tibet Plateau (TP) during the Miocene is crucial to understanding the evolution of Asian monsoon regimes and alpine biodiversity. However, the northern Tibet Plateau (NTP) remains poorly investigated. We use pollen records of montane conifers ( Tsuga , Podocarpus , Abies , and Picea ) as a new paleoaltimetry to construct two parallel midrange paleoelevation sequences in the NTP at 1332 ± 189 m and 433 ± 189 m, respectively, during the Middle Miocene [~15 million years ago (Ma)]. Both midranges increased rapidly to 3685 ± 87 m in the Late Miocene (~11 Ma) in the east, and to 3589 ± 62 m at ~7 Ma in the west. Our estimated rises in the east and west parts of the NTP during 15 to 7 Ma, together with data from other TP regions, indicate that during the Late Miocene the entire plateau may have reached a high elevation close to that of today, with consequent impacts on atmospheric precipitation and alpine biodiversity.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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