التفاصيل البيبلوغرافية
| العنوان: |
East Asian winter monsoon intensification over the Northwest Pacific Ocean driven by late Miocene atmospheric CO2 decline. |
| المؤلفون: |
Qiang Zhang1, Ran Zhang2 zhangran@mail.iap.ac.cn, Qingzhen Hao3, Clift, Peter D.4, Roberts, Andrew P.5, Florindo, Fabio6, Qian Li7, Jianxing Liu8, Ze Liu9, Ke Gui10, Huizheng Che10, Shuangchi Liu1, Qingqing Qiao11, Lixia Ju2, Chunsheng Jin3, Chuanzhou Liu1, Qingsong Liu12, Wenjiao Xiao1,11, Zhengtang Guo3 |
| المصدر: |
Science Advances. 6/21/2024, Vol. 10 Issue 25, p1-10. 10p. |
| مصطلحات موضوعية: |
*MIOCENE Epoch, *ABYSSAL zone, *MONSOONS, *PALEOGEOGRAPHY, *OCEAN, *ATMOSPHERIC carbon dioxide, *OROGENIC belts |
| مصطلحات جغرافية: |
TIBETAN Plateau, EAST Asia |
| مستخلص: |
East Asian winter monsoon (EAWM) activity has had profound effects on environmental change throughout East Asia and the western Pacific. Much attention has been paid to Quaternary EAWM evolution, while long-term EAWM fluctuation characteristics and drivers remain unclear, particularly during the late Miocene when marked global climate and Asian paleogeographic changes occurred. To clarify understanding of late Miocene EAWM evolution, we developed a high-precision 9-million-year-long stacked EAWM record from Northwest Pacific Ocean abyssal sediments based on environmental magnetism, sedimentology, and geochemistry, which reveals a strengthened late Miocene EAWM. Our paleoclimate simulations also indicate that atmospheric CO2 decline played a vital role in this EAWM intensification over the Northwest Pacific Ocean compared to other factors, including central Asian orogenic belt and northeastern Tibetan Plateau uplift and Antarctic ice-sheet expansion. Our results expand understanding of EAWM evolution from inland areas to the open ocean and indicate the importance of atmospheric CO2 fluctuations on past EAWM variability over large spatial scales. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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