页岩
近义词与同义词
按词义分组列出，使用时请结合具体语境。
a fine-grained metamorphic rock that can be split into thin layers
a sedimentary rock formed by the deposition of successive layers of clay
any metamorphic rock that can be split into thin layers
基本解释
含大量黏土矿物，呈薄叶状层理的一种沉积岩。由鳞片状的黏土矿物经压实、脱水等作用而形成。致密不透水，颜色不一‖有机质多的呈灰黑或黑色，称为黑色页岩，超有各种元素，有的能提取有用气体和焦油。