| 1. | The cathodoluminescence ( cl ) analysis shows the quartz reflects an abundance of brown color , blue - purple , dark blue , dull color , and no cl color for quartz overgrowth , while feldspar shows light blue , yellow - green , yellow - brown , green and brown cl colors . the calcite reflects bright orange - yellow for non - ferroan calcite and dull orange - brown cl colors for ferroan calcite
阴极发光分析证实，砂岩中石英颗粒阴极发光颜色较深，主要位棕色、蓝紫色、深蓝色，石英加大变不发光；长石颗粒阴极发光颜色主要位浅蓝色、黄绿色、绿色、棕黄色等；无铁方解石阴极发光颜色为鲜艳桔黄色，铁方解石阴极发光颜色为暗桔黄色。 |
