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构造-古地理在地学基础研究与能源矿产勘查中具有重要的指导意义,国内外学者与勘探家进行了长期卓有成效的探索。本文以四川盆地东北部二叠、三叠系礁滩天然气勘探为例,探讨了沉积相图在油气勘探发现中的重要作用,以及活动论思想在相图编制中的指导意义。结果表明,40余年对四川盆地晚二叠世-早三叠世沉积相的研究,引发了长兴组生物礁、飞仙关组鲕滩天然气勘探的突破与普光、龙岗、元坝等大气田的持续发现,相图的创新与发展带来了油气田大发现的奇迹;将盆地与周缘造山带相结合,探索晚二叠世-早三叠世的原型盆地,表明四川盆地内部及周缘在该时期内构造-古地理环境发生了巨大变迁,台地边缘是礁、滩发育的有利场所,台地内凹陷则是烃源岩分布的有利地区;对沉积盆地的复位与复原有助于矿产资源的预测。新一轮活动论“构造-古地理”研究将基于海量地质调查与油、气、煤勘探等资料,大数据时代下的活动论古地理重建必将带来地学的进步与资源勘查的系列发现。
The tectono-paleogeography has important guiding significance in the basic research of geosciences and exploration of energy and mineral resources, and the long-term and fruitful exploration has been carried out by scholars and explorers at home and abroad. Taking the exploration of natural gas in Permian and Triassic reefs in the northeastern Sichuan Basin as an example, the paper discusses the important role of sedimentary facies in the discovery of oil and gas, and the guiding significance of activity theory in phase diagram compilation. The results show that over 40 years’ research on the sedimentary facies of the Late Permian-Early Triassic in the Sichuan Basin led to breakthroughs in natural gas exploration in the reefs of Changxing Formation and the oolitic beach in Feixianguan Formation and breakthroughs in the gas fields of Puguang, Longgang and Yuanba It was found continuously that the innovation and development of phase diagrams brought a great discovery of oil and gas fields. Combining the basin with the peripheral orogenic belts to explore the prototype basin of the Late Permian-Early Triassic indicates that the interior and periphery of the Sichuan Basin during that period The structure-palaeogeographic environment has undergone tremendous changes. The edge of the platform is a favorable site for the development of reefs and shoals, and the depression in the platform is a favorable area for the distribution of source rocks. The resettlement and restoration of sedimentary basins are helpful for the prediction of mineral resources. A new round of activity on the “tectonic - paleogeography” research will be based on the massive geological survey and oil, gas, coal exploration and other data, the era of big data under the activity of the ancient geographical reconstruction will bring about the progress of science and resource exploration Series found.