摘要
乌夏地区南北分3个带,东西分3个变形区,共划分为9个构造单元,发育9种构造岩相带,三大沉积体系。不同的构造带发育不同的沉积体系,生长断层造成断层两侧同期地层沉积厚度与沉积体系的明显差异,断层的走向控制沉积体系的展布方向,阶梯式逆冲断层可形成多级断崖扇。乌尔禾背斜扇三角洲前缘(冲积扇扇中)、乌夏—卡拉麦里冲断区扇三角洲平原(冲积扇扇根)及夏红断褶区扇三角洲平原(冲积扇扇根)构造岩相带是油气聚集的有利区。
Wuerhe-Xiazijie area is divided into nine structural units, and has nine sedimentary facies types and three sedimentary systems. The different structural zones allowed to developing different sedimentary systems. The growth fault caused the differences in sedimentary thickness of isochron strata and in sedimentary system in two sides of the fault. The fault＇s strike controlled the distribution directions of the sedimentary systems, and the step thrust faults formed multiple steep fan-delta. Wuerhe anticline fan-deha front （middle alluvial fan）, Wuerhe-Xiazijie-Karameli thrust belt fan-delta plain （root alluvial fan）, Xiazijie-Hongqiba bruchfalten zone fan-delta plain （root alluvial fan） tectonic-lithofacies zones are favorable locations for hydrocarbon accumulation.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2008年第6期722-724,共3页
Xinjiang Petroleum Geology
关键词
准噶尔盆地
乌尔禾
夏子街
构造体系
构造岩相带
油气聚集
Junggar basin
Wuerhe
Xiazijie
structural system
tectonic-lithofacies zone
hydrocarbon accumulation
