| 特征类别 岩屑类别 | 灰色凝灰岩 | 灰黑色凝灰岩 | 深灰色凝灰岩 | 杂色凝灰岩 | 紫色玄武岩 |
| 颜色直方图 | 68.95% | 71.31% | 72.63% | 73.24% | 75.89% |
| 主色调直方图 | 73.71% | 75.66% | 83.28% | 77.49% | 80.05% |
| 颜色矩 | 80.15% | 81.88% | 82.46% | 82.51% | 83.43% |