四川盆地上三叠统须家河组沉积时期古气候
徐兆辉1, 汪泽成1, 胡素云1, 朱世发2, 江青春1

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Xu Zhaohui1, Wang Zecheng1, Hu Suyun1, Zhu Shifa2, iang Qingchun1
包浅001-16井须家河组Ca/Mg比值