n.正上反角
adj.下反角的
Middle-Upper Cambrian dolomites in Shimen,Hunan Province,are mainly composed of anhedral micritic dolomite,euhedral and subhedral granular dolomites,grain dolomite. 湖南石门中上寒武统白云岩极其发育,类型多样,不同类型的白云岩其成因机理和白云石化模式各不相同。
anhedral wing tip 上反角翼梢
