地质学报2024，Vol.98Issue(2)：397-420,24.DOI:10.19762/j.cnki.dizhixuebao.2023151
准噶尔盆地中部永进地区走滑断裂发育特征及成因物理模拟
Development characteristics and analogue modelling of strike-slip faults in the Yongjin area,central Junggar basin
摘要
Abstract
Yongjin area is located in the middle of Junggar basin,northwestern China,where several hydrocarbon-bearing structures associated with strike-slip faults have recently been discovered.However,the development characteristics and genetic mechanism of strike-slip faults are not thoroughly studied.Based on detailed interpretation of three dimensional seismic data,three groups of strike-slip fault systems are identified in the Triassic-Jurassic strata in the study area,which are nearly east-west,north-west-west and north-east-east trends.The distribution characteristics of the strike-slip fault system are longitudinal stratified and planar"grid"pattern structure.Based on the similarity principle,four groups of structural physical sandbox simulation and comparison experiments were designed to reproduce the tectonic evolution process in the study area.The simulation results indicated that the formation of such kind of strike-slip faults is related to the location of pre-existing faults of the basement.This kind of distributed strike-slip fault system in Yongjin area was controlled by both pre-existing structures and stratum properties,thus a genetic model of the study area has been established.The research results have guiding significance for the genesis of strike-slip fault systems in areas with similar geological settings.关键词
准噶尔盆地/永进地区/广布式走滑断裂/构造物理模拟/构造演化Key words
Junggar basin/Yongjin area/distributed strike-slip faults/analogue modelling/tectonic evolution引用本文复制引用
张婧琪,于福生,庞福基,王千军,王岳丰..准噶尔盆地中部永进地区走滑断裂发育特征及成因物理模拟[J].地质学报,2024,98(2):397-420,24.基金项目
本文为中石化胜利油田科研项目(编号 30200018-20-ZC0613-0116,30200018-21-ZC0613-0030)资助的成果. （编号 30200018-20-ZC0613-0116,30200018-21-ZC0613-0030）
