The grained Carbonate rocks of Qianjiang Formation in Qianjiang Sag can be divided into oolitic limestone, sand-clastic limestone, mud-crystal sand-clastic dolomite, alga-gobbet limestone etc.

潜江凹陷潜江组粒屑碳酸盐岩性主要发育鲕粒石灰岩、砂屑灰岩、泥晶砂屑云岩、藻团块灰岩等。

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Stonework on the building was damaged by a 1977 sand-blasting which, while it turned a black building white, also took off the limestone's protective facing, swiftly turning it grey again.

ECONOMIST: Conservation