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青藏高原东北部的松潘-甘孜地块由于地处中国三大动力学体系交汇地区,构造属性特殊,基底特征与属性一直具有较大争议,并且由于其大陆被动边缘的沉积环境,使其成为当前油气勘探的关键场所之一。进一步认识和明确基底特征及其油气勘探前景,在已有研究结果的基础上对基底特征及油气勘探前景进行综合分析。结果显示松潘-甘孜地块是具有陆壳基底的,并且具有亲扬子性质,同时松潘-甘孜地块地区虽然存在较好的古生界生烃条件,但受构造与岩浆活动等影响油气不易保存,因此具有一定的勘探风险。
The Songpan-Garzê block in the northeastern Qinghai-Tibet Plateau has been a subject of considerable controversy for its distinctive tectonic properties due to its location in the confluence of the three major dynamical systems in China and the fact that its depositional environment at the passive edge of the continent has made it the current One of the key sites for oil and gas exploration. Further understanding and clarification of the characteristics of the basement and its prospects of oil and gas exploration, based on the results of previous studies, the characteristics of the basement and the prospect of oil and gas exploration are comprehensively analyzed. The results show that the Songpan-Garzê block is continental basement and has the characteristics of pro-Yangtze, and the Songpan-Garzê block has good Paleozoic hydrocarbon generation conditions, but the oil and gas are not easily preserved due to tectonism and magmatism , So have a certain exploration risk.