Penecontemporaneous or seepage-reflux dolomitization is the original mechanism for gypsum-bearing muddy dolomicrite.

准同生石化或卤水回流渗透石化是泥晶-微晶（含膏）的制。

Nonsandstone reservoirs between salt beds of Qianjiang Formation in the Qianjiang Sag of the Jianghan Basin are mainly composed of dolomicrite,glauberite rock,mudstone and their peperite.

组江汉盆地潜江凹陷潜江组盐间段非砂储层的石主要为泥晶、钙芒硝、泥及其混积,孔渗性普遍较差。