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昆特依凹陷位于柴达木盆地北缘断块带西段,紧邻冷湖和鄂博梁—葫芦山构造带,是柴达木盆地西北部重要的油气勘探潜力区域。通过对昆特依凹陷内部中生代、新生代地层分布特征的分析,结合地震资料地质解释,认为在中生代末造山后的陆内调整时期,昆特依凹陷内分割性断块发育,形成压陷型分隔性断块坳陷;新生代喜马拉雅构造运动对柴达木盆地的影响主要表现为压扭性构造应力场的作用,伴随阿尔金走滑断裂的活动,昆特依凹陷受其影响和制约,发育形成压陷型沉降坳陷。昆特依凹陷内的潜伏背斜构造在新生代早期开始发育,第四纪最终定型。
Located in the western segment of the block fault zone on the northern margin of the Qaidam basin, the Quetti Sag is close to the Cold Lake and Ebola-Cucurbit Structural Belt and is an important oil and gas exploration potential area in the northwestern Qaidam basin. Based on the analysis of the Mesozoic and Cenozoic stratigraphic distribution characteristics and the geologic interpretation of seismic data in the Kuyitai Depression, it is considered that during the intracontinental adjustment period after the post-orogenic post-Mesozoic period, the Quaternary fault developed within the Quettys depression to form a subsidence type Divisional fault block depressions. The influence of the Cenozoic Himalayan tectonic movement on the Qaidam basin is mainly characterized by the compressive-torsional tectonic stress field. With the movement of the Altun strike-slip faults, the Quyit-Yü depression is affected and restricted. Developed depression subsidence depression. Latent anticlines in the Quettys depression began to develop in the early Cenozoic and were finally settled in the Quaternary.