adj.自生的...

Locally dolomite and anhydrite are important as cements , together with minor authigenic quartz.在局部地方白云石和硬石膏也是重要的胶结物;还有少量自生石英.Authigenic mineral assemblage formed in different ambients is distinct to each other.两种环境下形成的自...

authigenic的音标：authigenic的英式发音音标为：[əʊthɪd'ʒenɪk]authigenic的美式发音音标为：[oʊthɪd'ʒenɪk]...