陆源沉积岩

关于杂基在陆源碎屑沉积岩中的命名问题

On the nomenclature of matrix in the terrigenous clastic sedimentary rock

根据野外观察，结合岩相学和地球化学的分析结果，指出这些浅变质岩的原岩均为陆源碎屑沉积岩。

The combination of petrographic and geochemical analysis results show that these low metamorphic rocks ' protolith are terrigenous clastic sedimentary rocks .

海西运动晚期，大量的火山碎屑随同陆源碎屑沉积成岩，使其形成的这套富含火山物质的碎屑岩具有特殊的物化性质；

In late Hercynian , a series of volcanics-rich clastic rocks were formed by sedimentation of volcanic clasts and continental clasts .

酸性火山事件粘土岩的地质产状、物质成分、特别是微量元素含量与陆源正常沉积粘土岩不同。

The geologic occurence , composition and microelements content of acidic volcanic clay are different from those of normal terrigenous sedimentary clay .

区内的陆源粗碎屑沉积岩为铀的富集创造了有利条件，扇三角洲和冲积扇的主河道和分流河道是最有利于铀聚集的部位。

The terrigenous coarse-grained clastic deposits in the study area provide favorable condition for the concentration of uranium and especially the main channels and distributary channels on the fan delta and alluvial fan are the most favorable sites for uranium concentration .