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Structural Styles of Fronts of Thrust‐Detachment Faults in Petroleum‐bearing Areas of Western China
Author(s) -
Tonghe Wang
Publication year - 1999
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.1999.tb00846.x
Subject(s) - geology , diapir , foreland basin , thrust , fault (geology) , fold and thrust belt , thrust fault , decoupling (probability) , tectonics , seismology , geotechnical engineering , petrology , engineering , aerospace engineering , control engineering
The front of a thrust‐detachment fault may have various styles such as decoupling, fold, forethrust and backthrust ones because of differences in magnitude, direction and time of the forces exerted on the fault and the inhomogeneity of rock mechanical properties. They have different characteristics and are usually associated with gravity structure, inverse structure and diapir structure. These structures exist together in the same thrust‐detachment fault and can influence, compensate for and convert into each other. They provide important grounds not only for the study of the dynamic state, propagation mode, evolutionary process and formation mechanism but also for the analysis of the petroleum generation, migration, accumulation and preservation and arrangement of drill holes in foreland basins.