热力背斜生物气藏的构造成因及其地质意义

The Structural Genesis of Biogenic Gas Reservoir in Thermal Anticline and Its Geological Significance

通过借助钻井、地震、重力、磁力资料，对背斜的形态、展布及基底响应进行研究。探讨青海柴达木盆地东部三湖地区生物气藏热力背斜的构造特征及对生物气藏的贡献，背斜的形成机制及与气藏的关系。认为三湖地区热力背斜生物气藏背斜构造的发育、发展对生物气的生成、运移和聚集起着积极的建设作用。深部断裂与岩浆活动是形成热力背斜的地质基础，通过与此相关的信息，为生物气藏的勘探提供了一条新途径。

According to drilling, seismic, gravity and magnetic data for studying anticline feature in three lakes area of east Chaidamu basin in Qinghai province, this article seeks for main relationship between the anticline's forming mechanism and biogenic gas reservoir. It is considered that the geologic foundation forming the thermoanticline are deep fractures and magma activation, it would help to discovery more new biogenic gas reservoir.