Magnetostratigraphy of the Yaha section, Tarim Basin (China): 11 Ma acceleration in erosion and uplift of the Tian Shan mountains

被引：215

作者：

Charreau, J

Gilder, S

Chen, Y

Dominguez, S

Avouac, JP

Sen, S

Jolivet, M

Li, YG

Wang, WM

机构：

[1] Inst Sci Terre Orleans, F-45067 Orleans 2, France

[2] Inst Phys Globe, Lab Paleomagnetisme, F-75252 Paris 05, France

[3] CNRS, UMR 5573, Lab Dynam Lithosphere, F-34095 Montpellier, France

[4] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA

[5] Museum Hist Nat, F-75005 Paris 5, France

[6] Inst Geol & Mineral Resources, Urumqi 83000, Peoples R China

[7] Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China

来源：

GEOLOGY | 2006年 / 34卷 / 03期

关键词：

Tian Shan; uplift; erosion; magnetostratigaphy; Tarim;

D O I：

10.1130/G22106.1

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

We report a magnetostratigraphic and rock magnetic study of the Yaha section, located on the southern flank of the central Tian Shan mountains, Asia. Our results show a twofold increase in sedimentation rate as well as marked changes in rock magnetic characteristics ca. 11 Ma. After 11 Ma, sedimentation rate remained remarkably constant until at least 5.2 Ma. These findings are consistent with sedimentary records front other sections surrounding the Tian Shan. We conclude that uplift and erosion of the Tian Shan accelerated ca. 11 Ma, long after the onset of the collision between India and Asia, and that the range rapidly evolved toward a steady-state geometry via a balance between tectonic and erosion processes.

引用

页码：181 / 184

页数：4

共 29 条

[1] Relatively recent construction of the Tien Shan inferred from GPS measurements of present-day crustal deformation rates [J].