›› 2014, Vol. 35 ›› Issue (1): 1-1.

   

Geometric Analysis and Kinematic Simulation of Abu Ghirab Anticline in Missan Area, Iraq

HAN Yaozua, CHEN Weia, OU Chenghuab, ZHOU Xiaojuna, LI Shiqina   

  1. (Southwest Petroleum University, a. College of Resource and Environment, b. College of Petroleum and Engineering, Chengdu, Sichuan 610500, China)
  • Online:2019-01-01 Published:1905-07-10

Abstract: Based on the seismic data of high signal?to?noise ratio, this paper presents the structural analysis of the structural deformation feature in the Abu Ghirab anticline and its corresponding growth strata geometric relationship in the study area by means of fault?related folding theory, the parameters of structural characteristics and the kinematic simulation of the structural geometric deformation of wedge?inner strata confining by thrust F1, back?thrust fault F2 and related growth strata. The simulation results show that this anticline and related structures are influenced by late Himalayan orogeny and started to shape and grow in the Pleistocene and ended in the Holocene, belonging to typical triangular wedge?inner structural strata. The transition folding from complex anticline?type fault formed by control of underlying detachment fault had totally nappe displacement of about 1 100 m during this period, with average nappe rate of 0.45 mm/a. The fault F3 developed in Holocene could transform the forelimb of growth fault?bend folds on the upper wall of back?thrust fault F2, and then suffer ongoing denudation latterly, finally forming the present tectonic framework in Missan area of Iraq

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