Postdoctoral Researchers Flow Station of SW China Petroleum Institute;
Institute of Sedimentary Geology;
Chengdu University of Technology;
Chengdu 610059;
Institute of Sedimentary Geology;
Chengdu University of Technology;
Chengdu 610059;
siliceous rock; hydrothermal; sedimentary geochemistry; environment; Sinian; the Hunan-Guizhou-Guangxi area;