• Carbonate cement is universally more than 10% in sandstones of the upper Yungang formation in Yungang Grottoes area. It's mainly composed of ferriferous calcite and ferriferous dolomite.

    云冈石窟地区云冈砂岩中碳酸盐胶结物的含量普遍10%以上,主要矿物成分为含铁方解石含铁白云石

    youdao

  • Carbonate cement is universally more than 10% in sandstones of the upper Yungang formation in Yungang Grottoes area. It's mainly composed of ferriferous calcite and ferriferous dolomite.

    云冈石窟地区云冈砂岩中碳酸盐胶结物的含量普遍10%以上,主要矿物成分为含铁方解石含铁白云石

    youdao

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