呼仁布其凹陷土壤油气化探异常成因类型及异常模式  

Anomaly model and pattern study of soil hydrocarbon geochemical exploration in Hurenbuqi sag

作　　者：鱼鹏亮 刘建利 屈挺 李明 李冰 黄斐 YU Peng-Liang LIU Jian-Li Qu Ting LI Ming LI Bing HUANG Fei(Shaaaxi Bureau of Geology and Mineral Exploration, Xi＇cm 710043, China Shaanxi Key Laboratory of Exploration and Comprehensive Utilization of Mineral Resources, Xi＇na 710054, China Shaanxi Center of Geological Survey, Xi＇an 710068, China)

机构地区：[1]陕西地矿物化探队,陕西西安710043 [2]陕西省矿产资源勘查与综合利用重点实验室第一研究室,陕西西安710054 [3]陕西省地质调查中心,陕西西安710068

出　　处：《物探与化探》2016年第5期880-884,共5页Geophysical and Geochemical Exploration

摘　　要：呼仁布其凹陷在下二叠统基底之上沉积了厚达4 000 m的河湖相含煤、含油碎屑岩,具有良好的油气地质条件和资源前景。结合大地电磁测深法解译的断裂构造及地层展布,对南次凹土壤油气化探异常特征进行了研究和分析,探讨了呼仁布其凹陷的土壤油气化探异常模式,分析了化探异常成因类型。本次研究填补了该区化探资料空白,为研究区油气资源调查与评价提供了重要依据。Over 4000 meters of lacustrine face coal and oil-bearing clastic rock are deposited above the lower Permian base rock in Hurenbuqi sag,suggesting a good prospect of oil and gas geological conditions and resources. In this paper,the authors discuss the anomaly pattern of soil hydrocarbon geochemical exploration based on the magnetotelluric sounding interpretation of fracture structure and stratigraphic distribution as well as anomaly characteristics of southern sag. The formation mechanism of the surface geochemical anomalies are investigated,and the geochemical anomaly models are analyzed. The results obtained by the authors will play an extremely important role in oil and gas prospect evaluation.

关 键 词：呼仁布其凹陷 土壤油气化探 大地电磁测深 油气成藏模式 

分 类 号：P632[天文地球—地质矿产勘探]