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四川西部广泛分布着上三叠统西康群和义敦群,大量的酸性岩浆岩和中基性火山岩。金沙江两岸出露了古生界和中生界地层及各种火山岩。上述地区山高谷深,断裂交错,地质构造复杂,被认为是解决特提斯的一些关键地质问题的所在位置,从而引起了各国地质学者的瞩目。
The Upper Triassic Xikang Group and Yidun Group are widely distributed in the western Sichuan, with a large amount of acidic magmatic rocks and medium-basic volcanic rocks. The Jinsha River exposed the Paleozoic and Mesozoic strata and various volcanic rocks. Deep mountains and valleys, staggered faults and complicated geological structures are considered as the location to solve some of the key geological problems in Tethys, thus attracting the attention of geologists in various countries.