宁夏固原古近系寺口子组砂岩成因探讨
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杨帆
1,
2
, 李孝泽
1
Discussion about origin of the Paleogene Sikouzi Formation sandstones in Guyuan,Ningxia
Yang Fan
1,
2
, Li Xiaoze
1
宁夏固原古近系寺口子组典型风成沙丘前积层倾向分点玫瑰花图