Cotton, F. and Avouac, J. P. (1994) Crustal and upper-mantle structure under the Tien Shan from surface-wave dispersion. Physics of the Earth and Planetary Interiors, 84 (1-4). pp. 95-109. ISSN 0031-9201. doi:10.1016/0031-9201(94)90036-1. https://resolver.caltech.edu/CaltechAUTHORS:20120910-113704833
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Abstract
Long-period seismograms of nuclear explosions and natural earthquakes in central Asia, recorded at three digital stations of the Laboratoire de Détection Géophysique (LDG) network in France, attest to a significant propagation effect in the Tien Shan area. This allows for an investigation of the deep structures under the range, which has been the site of particularly intense intracontinental deformation since about the middle Miocene. Group velocity curves have been obtained by regionalization for pure paths across either the central or eastern Tien Shan. They indicate a crust of approximately 50–55 km in thickness, and particularly low shear-wave velocities under the central Tien Shan. Our study suggests lateral variation of the deep structures under the range, which could be related to a westward increase along the range of cumulative amount and rate of shortening.
| Item Type: | Article | |||||||||
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| Additional Information: | © 1994 Elsevier Science B.V. Received 1 January 1993; revision accepted 6 December 1993. We thank Michel Campillo for providing numerous and helpful suggestions, and one anonymous reviewer. This work also benefited from fruitful discussions with Jean-Louis Plantet. | |||||||||
| Group: | Seismological Laboratory, Division of Geological and Planetary Sciences | |||||||||
| Issue or Number: | 1-4 | |||||||||
| DOI: | 10.1016/0031-9201(94)90036-1 | |||||||||
| Record Number: | CaltechAUTHORS:20120910-113704833 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20120910-113704833 | |||||||||
| Official Citation: | F. Cotton, J.P. Avouac, Crustal and upper-mantle structure under the Tien Shan from surface-wave dispersion, Physics of the Earth and Planetary Interiors, Volume 84, Issues 1–4, July 1994, Pages 95-109, ISSN 0031-9201, 10.1016/0031-9201(94)90036-1. (http://www.sciencedirect.com/science/article/pii/0031920194900361) | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 33964 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 11 Sep 2012 16:02 | |||||||||
| Last Modified: | 09 Nov 2021 23:05 |
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