阿尔金断裂带局部岩石圈剪切作用的层析成像证据。

Tomographic evidence for localized lithospheric shear along the altyn tagh fault.

作者信息

Wittlinger G, Tapponnier P, Poupinet G, Mei J, Danian S, Herquel G, Masson F

机构信息

G. Wittlinger, G. Herquel, F. Masson, Institut de Physique du Globe de Strasbourg, Centre National de la Recherche Scientifique, Universite Louis Pasteur, 5 rue R. Descartes 67084 Strasbourg, France. P. Tapponnier, Laboratoire de Tectoniq.

出版信息

Science. 1998 Oct 2;282(5386):74-6. doi: 10.1126/science.282.5386.74.

DOI:10.1126/science.282.5386.74

PMID:9756478

Abstract

Seismic tomography across the Altyn Tagh fault, at the north edge of the Tibetan Plateau, reveals a low P-wave velocity anomaly below the fault down to 140 kilometers. This anomaly probably reflects strike-slip shear in the lithosphere. Slip-partitioning may also induce a wedge of crust from the Tarim Basin to plunge into the mantle.

摘要

青藏高原北缘阿尔金断裂带的地震层析成像显示，该断裂带下至140公里深处存在一个低P波速度异常区。这种异常可能反映了岩石圈中的走滑剪切作用。滑动分区也可能导致塔里木盆地的地壳楔体俯冲入地幔。