siliceous shale

基本解释

By the experiments, the effects of several mineral admixtures, such as silica fume, superfine slag and siliceous shale on the High Strength Concrete (HSC) is researched.
通过实验，研究了硅灰、超细矿渣、硅质页岩几种矿物质掺合料对高强混凝土强度的影响；
Gold mineralization of the zone is confined only to the Cambrian carbonaceous shale overlain by siliceous rocks, and apparently controlled by a premineral tough shear zone.
该“潜伏”脉带的金矿化限于寒武系以硅质岩为顶板的碳质页岩中，明显受成矿前产生的韧性剪切带控制。
Its materials might come from both magmas and host rocks, indicating that it was formed when the ichor (or hydrothermal solution) replaced the Devonian siliceous shale and so on.
成岩物质既有岩浆来源又有地层来源，反映了与笼箱盖岩体同源的岩汁或热液沿层交代泥盆系的成因特征。