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
收藏
页码：484 / 498
页数：15
相关论文
共 60 条
[51]   Low fault friction in Iran implies localized deformation for the Arabia-Eurasia collision zone [J].
Vernant, P. ;
Chery, J. .
EARTH AND PLANETARY SCIENCE LETTERS, 2006, 246 (3-4) :197-206
[52]   Present-day crustal deformation and plate kinematics in the Middle East constrained by GPS measurements in Iran and northern Oman [J].
Vernant, P ;
Nilforoushan, F ;
Hatzfeld, D ;
Abbassi, MR ;
Vigny, C ;
Masson, F ;
Nankali, H ;
Martinod, J ;
Ashtiani, A ;
Bayer, R ;
Tavakoli, F ;
Chéry, J .
GEOPHYSICAL JOURNAL INTERNATIONAL, 2004, 157 (01) :381-398
[53]   Four-dimensional transform fault processes: progressive evolution of step-overs and bends [J].
Wakabayashi, J ;
Hengesh, JV ;
Sawyer, TL .
TECTONOPHYSICS, 2004, 392 (1-4) :279-301
[54]  
Wakabayashi J, 2007, GEOL SOC SPEC PUBL, V290, P169, DOI 10.1144/SP290.4
[55]   Active tectonics and late Cenozoic strain distribution in central and eastern Iran [J].
Walker, R ;
Jackson, J .
TECTONICS, 2004, 23 (05) :TC50101-24
[56]   Difference in the GPS deformation pattern of north and central zagros (Iran) [J].
Walpersdorf, A. ;
Hatzfeld, D. ;
Nankali, H. ;
Tavakoli, F. ;
Nilforoushan, F. ;
Tatar, M. ;
Vernant, P. ;
Chery, J. ;
Masson, F. .
GEOPHYSICAL JOURNAL INTERNATIONAL, 2006, 167 (03) :1077-1088
[57]   4D analogue modelling of transtensional pull-apart basins [J].
Wu, Jonathan E. ;
McClay, Ken ;
Whitehouse, Paul ;
Dooley, Tim .
MARINE AND PETROLEUM GEOLOGY, 2009, 26 (08) :1608-1623
[58]   THE TRANSFER OF SLIP BETWEEN 2 EN ECHELON STRIKE-SLIP FAULTS - A CASE-STUDY FROM THE 1992 LANDERS EARTHQUAKE, SOUTHERN CALIFORNIA [J].
ZACHARIASEN, J ;
SIEH, K .
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1995, 100 (B8) :15281-15301
[59]  
ZHANG PZ, 1989, GEOLOGY, V17, P814, DOI 10.1130/0091-7613(1989)017<0814:EOPAB>2.3.CO
[60]  
2
123456