Journal
EARTH AND PLANETARY SCIENCE LETTERS
Volume 191, Issue 1-2, Pages 157-165Publisher
ELSEVIER
DOI: 10.1016/S0012-821X(01)00414-9
Keywords
Global Positioning System; block structures; intraplate processes; Central Asia; Tien Shan
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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.
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