Gaw-Khuni Basin: An active stepover structure in the Sanandaj-Sirjan zone, Iran

被引：7

作者：

Nadimi, Alireza ^{[1
]}

Konon, Andrzej ^{[2
]}

机构：

[1] Univ Isfahan, Fac Sci, Dept Geol, Esfahan, Iran

[2] Univ Warsaw, Fac Geol, PL-02089 Warsaw, Masovian, Poland

来源：

GEOLOGICAL SOCIETY OF AMERICA BULLETIN | 2012年 / 124卷 / 3-4期

关键词：

PULL-APART BASINS; EURASIA COLLISION ZONE; ZAGROS MOUNTAINS; STRIKE-SLIP; CONTINENTAL COLLISION; GPS MEASUREMENTS; WESTERN IRAN; BELT IRAN; EVOLUTION; TECTONICS;

D O I：

10.1130/B30485.1

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Gaw-Khuni Basin is located in the central part of the Sanandaj-Sirjan zone, on the northeastern margin of the Zagros orogen. This basin is one of the continuous zones of Sanandaj-Sirjan zone basins that is filled by Pliocene-Holocene sediments. The GawKhuni Basin is surrounded by an en echelon to parallel arrangement of active faults in dextral strike-slip fault zones that indicate a right-step dilational stepover structure. The boundary faults of this basin are the Eastern and Western Gaw-Khuni, Ramsheh, and Nain-Dehshir faults. Earthquake distribution determined along the faults, dissection and displacement of Holocene sediments, and also the development of pull-apart basins filled with Holocene deposits along the faults confirm that these faults are active. The GawKhuni stepover was formed during transtensional movements produced between two dextral strike-slip faults (Nain-Dehshir and Ramsheh). Also, the Gaw-Khuni pull-apart basin and the Eastern and Western GawKhuni faults developed in a releasing step between the faults and grew in two directions during the time of their formation.

引用

页码：484 / 498

页数：15

共 60 条

[1]

Abaie I. L., 1964, Buellton of Iranian Petroleum Institute, V15, P561

[2] Convergence history across Zagros (Iran): constraints from collisional and earlier deformation [J].