摘要
<正>黑龙江省阿城地区中二叠统土门岭组是一套碎屑沉积-极低级变质岩石(王成文等,2008;胡大干等,2011),主要岩性为泥岩、泥质粉砂岩、页岩等。岩石常量元素地球化学X荧光光谱分析,Al_2O_3/TiO_2介于20.76-26.73之间,反映其物质来源主要为长英质物质。岩石微量元素和稀土元素地球化学的ICP-MS分析,B元素含量的平均值为1.23μg/g,Sr/Ba平均值是0.20,Th/U平
引文
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