Development characteristics of the Xujiahe Formation bauxite in the northeast of Sichuan basin and its response to structural movement
川东北须家河组中铝土矿的发育特征及其对构造活动的响应

Arguments on whether An'xian tectonic movement existed or not and on how widely its influence might range during Norian Period and Rhaetian Period of Late Triassic(between the 3rd and 4th member of Xujiahe Formation) in Sichuan basin have existed for long time.This study,for the first time,found the sedimentary bauxite layer on the top of the 3rd member of Xujiahe Formation(between the 3rd and 4th member of Xujiahe Formation) in the northeast of Sichuan basin.On the basis of thin section,geochemical charact...