Oil & Gas Geology ›› 2006, Vol. 27 ›› Issue (4): 475-481.doi: 10.11743/ogg20060406

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Growth strata and their application in timing deformation of foreland thrust-fold belts in the north margin of Tianshan

Guo Zhaojie1, Fang Shihu1, Zhang Rui1, Zhang Zhicheng1, Wu Chaodong1   

  1. 1. Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education, Peking University, Beijing 100871;
    2. Exploration Division of PetroChina Daqing Oilfield Company LTD, Daqing, Heilongjiang 163000
  • Received:2006-07-06 Online:2006-08-25 Published:2012-01-16

Abstract:

Three foreland thrust-fold belts,the Piedmont,the Huoerguosi-ManasiTugulu,and the Dushanzi-Anjihai,formed since the Cenozoic are recognized from south to north in the north margin of Tianshan.The sequences of growth strata developed in each belt have been established based on field observation and seismic interpretations.The fission-track dating evidences and available magnetostratigraphic data are also used in the timing of the Late Cenozoic tectonic deformation: the Piedmont formed since about 10 Ma;the Huoerguosi-Manasi-Tugulu formed from 7 to 2.58 Ma;and the Dushanzi-Anjihai formed after about 0.73 Ma.

Key words: growth strata, thrust-fold belt, deformation time, north margin of Tianshan, Late Cenozoic

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