New space geodetic constraints on the distribution of deformation in Central Asia

被引：206

作者：

Reigber, C ^{[1
]}

Michel, GW

Galas, R

Angermann, D

Klotz, J

Chen, JY

Papschev, A

Arslanov, R

Tzurkov, VE

Ishanov, MC

机构：

[1] Geoforschungszentrum Potsdam, Div 1, D-14473 Potsdam, Germany

[2] Natl Bur Surveying & Mapping, Beijing, Peoples R China

[3] Inggeodezia, Alma Ata, Kazakhstan

[4] Special Res Lab Maijdanac, Tashkent, Uzbekistan

[5] Goskartog, Bishkek, Kyrgyzstan

[6] Tadjikgeodesia, Dushanbe, Tajikistan

来源：

EARTH AND PLANETARY SCIENCE LETTERS | 2001年 / 191卷 / 1-2期

关键词：

Global Positioning System; block structures; intraplate processes; Central Asia; Tien Shan;

D O I：

10.1016/S0012-821X(01)00414-9

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Results from repeated measurements across a 90-sites global positioning system network in Central Asia provide direct evidence of current high rates of tectonic deformation far north of the India-Eurasia suture zone. The data help to quantify both the partitioning of deformation within the seismically active Tien Shan and Northern Pamirs, as well as the ongoing rotation of virtually undeformed blocks such as the Tarim with respect to stable Eurasia. The NNW to SSE shortening rates derived from the computations reach values of 23 +/- 3 nim yr(-1) over the ranges studied, suggesting that regional deformation rates have increased considerably within the study area since the onset, of Cenozoic shortening 20-25 Myr ago. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：157 / 165

页数：9

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