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cdddd:矿物组合特征表现为以微斜条纹长石和石英为主,伴有较多的斜长石(中基性更长石),可见净边结构,暗色矿物黑云母常见。 /09=Tyy/\ http://www.doc88.com/p-7196801877246.html (2018-04-12 17:53) Wu( 8G
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cdddd:以四川奉节地区三叠系中统巴东组泥灰岩为例 mnQjX ? http://www.doc88.com/p-3357598145356.html (2018-04-12 17:42) m0\"C-Bk
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