The 173-kyr Obliquity Cycle Pacing the Asian Monsoon in the Eastern Chinese Loess Plateau From Late Miocene to Pliocene

被引：29

作者：

Zhang, Rui ^{[1
,2
,3
]}

Li, Xiaojuan ^{[1
]}

Xu, Yong ^{[4
]}

Li, Jianxing ^{[5
]}

Sun, Lu ^{[6
,7
]}

Yue, Leping ^{[1
]}

Pan, Feng ^{[4
]}

Xian, Feng ^{[2
,3
]}

Wei, Xiaohao ^{[1
]}

Cao, Yuge ^{[1
]}

机构：

[1] Northwest Univ, State Key Lab Continental Dynam, Dept Geol, Inst Cenozo Geol & Environm, Xian, Peoples R China

[2] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China

[3] Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global, Xian, Peoples R China

[4] China Geol Sci, Xian Ctr Geol Survey, Xian, Peoples R China

[5] China Geol Survey, Chengdu Ctr Geol Survey, Chengdu, Peoples R China

[6] East China Univ Technol, Sch Earth Sci, Nanchang, Jiangxi, Peoples R China

[7] Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China

来源：

GEOPHYSICAL RESEARCH LETTERS | 2022年 / 49卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Paleomonsoon; Chinese Loess Plateau; cyclostratigraphy; magnetostratigraphy; red clay; Miocene-Pliocene boundary; RED CLAY; PALEOCLIMATIC IMPLICATION; RECORDS; AGE; CYCLOSTRATIGRAPHY; EVOLUTION; SEQUENCES; DEPOSITS; WAVELET; UPLIFT;

D O I：

10.1029/2021GL097008

中图分类号：

P [天文学、地球科学];

学科分类号：

070403 [天体物理学];

摘要：

We conduct magnetostratigraphy and cyclostratigraphy on an eolian red clay sequence spanning 7-3.1 Ma in the eastern Chinese Loess Plateau. We pay more attention to the unconventional 173-kyr obliquity modulated cycle which is associated with the secular frequency interference of orbital inclinations between Earth and Saturn. Similar to the 405-kyr eccentricity cycles, the 173-kyr obliquity band proved to be an important orbital driving component by the latest astronomical findings, and can serve as a chronometer of terrestrial air circulation reconstruction back to 7 Ma. Comparison with magneto-cyclo-bio-stratigraphic timescales of another noted eolian sequence from the adjacent area, the 173-kyr cycle is exceptionally presented as a robust recognition of the cyclical sedimentary patterns for the East Asia monsoon deposits.

引用

页数：10

共 58 条

[1]

MAGNETIC-SUSCEPTIBILITY EVIDENCE OF MONSOON VARIATION ON THE LOESS PLATEAU OF CENTRAL CHINA DURING THE LAST 130,000 YEARS [J].