1.硬砂岩
2.杂砂岩
3.灰瓦克
4.灰瓦岩
1.a conglomerate rock composed of well-rounded pebbles cemented by a sandy infill
1.Their primary rocks were mainly graywacke, debris sandstone and few feldspar sandstone, ext.
其原岩主要为杂砂岩和岩屑砂岩,少数为长石砂岩等。