Structural Setting and Kinematic Analysis of the Halaban Region,Eastern Arabian Shield,Saudi Arabia

作     者：Osama M.KASSEM Yousef A.ALAMRI Faisal K.ZAIDI Abdel Aziz M.AL BASSAM Mansour H.AL-HASHIM Osama M.KASSEM;Yousef A.ALAMRI;Faisal K.ZAIDI;Abdel Aziz M.AL BASSAM;Mansour H.AL-HASHIM

作者机构：Department of Geology and GeophysicsFaculty of ScienceKing Saud UniversityP.O.Box 2455Riyadh 11451Kingdom of Saudi Arabia Department of GeologyNational Research CenterAl-Behoos str.12622 DokkiCairoEgypt 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2021年第95卷第3期

页      面：750-760页

核心收录：

学科分类：070904[理学-构造地质学] 0709[理学-地质学] 07[理学] 

基　　金：The authors would like to extend their sincere appreciation to the Deanship of Scientific Research at King Saud University for its funding of this research through Research Group Project No.RG-1440-011 

主　　题：vorticity analysis strain analysis deformation Halaban area Eastern Arabian Shield 

摘      要：The vorticity analysis technique was applied to measure the different lithological units,such as schist,metagranite and metavolcano-sedimentary rocks,which are present in the Halaban *** work aims to interpret the relationship between the different lithologies and the tectonic setting,in order to elucidate the nature of kinematic analysis in the Halaban *** kinematic analyses were applied to feldspar porphyroclasts,quartz and hornblende for twenty-six *** kinematic vorticity number(Wm)for deformed rocks in the study area ranged from~0.6 to *** direction of the long axes for finite strain data(X axes)revealed a WNW trend with shallow *** direction of the short axes for finite strain data(Z axes)were represented by vertical with associated horizontal *** results of the kinematic vorticity and strain analyses are characterized by simple shear with different degrees of deformation in the Halaban ***,our finite strain data shows no significant volume change during *** subhorizontal foliation was synchronized with thrusting and ***,throughout the overlying nappes,the same attitudes of tectonic contacts are observable,the nappes in the orogens being formed from simple shear deformation.