Study on Formation Causes of Bauxitic Mudstone in Wenjia Dam Area,Zhijin,Guizhou
Taking bauxitic mudstone at the lower section of Longtan Formation in Wenjia Dam Area,Zhijin,Guizhou as the research object,combined with theories and methods related to sedimentology,stratigraphy,petrology,mineral deposit geology,geochemistry and so on,the sedimentary facies types of Longtan Formation in the region are divided.It's believed that bauxitic mudstone is the weathering product of Emeishan basalt,which has experienced three stages of aluminum enrichment.However,due to the incomplete weathering of the Emeishan basalt,the aluminum content in the weathered material is less,and the surface is not uplifted by the tectonic movement after diagenesis,and the bauxite is not formed by weathering and leaching.
bauxitic mudstoneEmeishan Basaltsedimentary environmentLongtan FormationWenjia Dam
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万方数据
维普
