authigenic

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 pyrite is the normal product of anoxic sulfate reduction in marine sediments. 自生黄铁矿是海洋沉积物缺氧硫酸盐还原过程的主要产物。

The intervals around 500 cm of Core HD196A are enriched in authigenic pyrites, showing a rich zone of pyrites. 自生黄铁矿是海洋沉积物缺氧硫酸盐还原过程的主要产物。

The formation of authigenic clay minoral is related to clastic components of clastic rocks. 自生粘土矿物的形成与碎屑岩的碎屑组分有着密切的关系；

Authigenic minerals and their occurrence in the Meso-Cainozoic reservoir sandstones were observed and analyzed by optical microscope, SEM, EPMA and XRD. 采用光学显微镜、扫描电镜、电子探针及X射线衍射观察分析了塔里木盆地中新生界储层砂岩自生矿物及其在岩石中的产状。