PARTITIONING OF STRIKE-SLIP AND CONVERGENT MOTION BETWEEN EURASIA AND ARABIA IN EASTERN TURKEY AND THE CAUCASUS

被引：248

作者：

JACKSON, J ^{[1
]}

机构：

[1] BULLARD LABS, MADINGLEY RD, CAMBRIDGE CB3 0EZ, ENGLAND

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH | 1992年 / 97卷 / B9期

关键词：

D O I：

10.1029/92JB00944

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：

The plate motion model NUVEL-1 (De Mets et al., 1990) predicts a strongly oblique component to the convergence between Arabia and Eurasia at the longitude of the Caucasus. Earthquake focal mechanisms suggest that this oblique convergence is partitioned into pure right-lateral strike-slip motion in eastern Turkey and pure shortening by thrusting in the Greater Caucasus. Such partitioning offers an explanation for the apparent eastward continuation of the right-lateral faulting of the North Anatolian fault from Turkey into Iran. From a summation of seismic moment tensors between 1911 and 1991 it appears that most of the right-lateral strike-slip motion in eastern Turkey is accommodated by faulting in large earthquakes, while most of the shortening in the Caucasus appears to occur aseismically.

引用

页码：12471 / 12479

页数：9

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