福建永安煤田二叠系煤样照片 (IMAGE) Science China Press Caption (a) XGZ样品, 构造煤, 具有不规则的大型摩擦镜面; (b) QK样品, 裂隙和摩擦镜面; (c) TX10样品, 摩擦镜面发育; (d) TX11样品, 松散状的小煤颗粒; (e) TX23样品, 擦痕; (f) TX26样品, 小型摩擦镜面; (g) TX35样品, 石英热液脉体; (h) TX43样品, 摩擦镜面 Credit ©《中国科学》杂志社 Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.