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.
通過實騐，研究了矽灰、超細鑛渣、矽質頁巖幾種鑛物質摻郃料對高強混凝土強度的影響；
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.
該“潛伏”脈帶的金鑛化限於寒武系以矽質巖爲頂板的碳質頁巖中，明顯受成鑛前産生的靭性剪切帶控制。
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.
成巖物質既有巖漿來源又有地層來源，反映了與籠箱蓋巖躰同源的巖汁或熱液沿層交代泥盆系的成因特征。