论文部分内容阅读
双湖盆地位于青藏高原北部羌塘地块腹地.是一典型的北东向裂谷盆地,盆地周缘为北东向正断层和北西向扭性—张扭性断裂系所围限。双湖盆地的地层层序自下而上依次为:在叠纪一早侏罗统基底岩系、已强烈褶皱变形的红色砂砾岩系(S-1)与薄层状泥质灰岩(S-2),弱变形微倾斜的砂砾岩层(S-3)及近水平的松散砂砾层(S-4)。
The Shuanghu Basin is located in the hinterland of the Qiangtang block in the northern part of the Qinghai-Tibet Plateau, and is a typical northeast rift basin. The basin margin is surrounded by the northeast normal fault and the NW strike-torsional-torsional fracture system. The stratigraphic sequence of the Shuanghu basin is, from bottom to top, in the sequence of the Upper Cretaceous-Early Jurassic basement rock series, the strongly folded and reddish conglomerate series (S-1) and the thin-bedded argillaceous limestone (S- 2), weakly deformed graded glutenite (S-3) and near-horizontal loose gravel (S-4).