摘要
玉北地区位于塔里木盆地麦盖提斜坡东段,现今构造格局与西昆仑造山带、阿尔金造山带两大构造域的共同作用密切相关,整体表现为南倾的单斜,具"东西分区、上下分层"特点。发育加里东早期伸展断层、加里东中—晚期走滑断层、加里东中—晚期冲断层、加里东中—晚期滑脱型逆冲断层、海西晚期逆冲断层,构成上下两大断裂系统。玉北地区经历多期构造运动,主要遭受加里东中期—海西早期左行压扭、海西晚期挤压两期重要改造。构造演化控制岩溶缝洞型储层发育,断裂为油气垂向运移提供了良好运移通道,断垒带多期岩溶叠加期区和加里东中期Ⅰ幕岩溶发育区是油气勘探有利区。
Yubei is located at the eastern Markit slope,Tarim basin.The current tectonic framework,closely related to in-teraction between western Kunlun and Aerjin tectonic domains,is typical of a south-dipping slope and characterized by east and west divisions and upper and lower layered.Five types of faults are developed,including early Caledonian exten-sional faults,middle Caledonian-late Caledonian strike-slip faults,middle Caledonian-late Caledonian detachment thrust faults,middle Caledonian-early Hercynian thrust faults and late Hercynian thrust faults, and constitute the two major fault systems. Yubei has experienced multiphase tectonic movements,and suffered sinistral compressional and torsional trans-formation in middle Caledonian-early Hercynian and extrusion transformation in late Hercynian.Tectonic evolution have controlling effect on the development of karst fractured-vuggy reservoir.The faults provide access for hydrocarbon migra-tion,the Multi-phase karstification area in faulted horst belt and the karstification area in the 1st Phase of the Middle Caledonian are favorable areas of oil and gas exploration.
出处
《新疆地质》
CAS
CSCD
北大核心
2013年第B12期28-33,共6页
Xinjiang Geology
关键词
塔里木盆地
玉北地区
油气聚集
构造演化
Tarim Basin
Yubei Area
Oil and Gas Accumulation
Tectonic Evolution
