carbonaceous shale

基本解释

Thin layers of sandy shale, and carbonaceous fragments are locally present.
侷部出現砂質頁巖薄層和碳質碎屑。
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。
In the paper, there is an introduction of the technology of calcinating portland clinker in the mechanical shaft kiln using carbonaceous shale partly in place of clay batch .
介紹了用碳質頁巖替代部分黏土配料，在機立窰上煆燒矽酸鹽水泥熟料的技術。