biogenic rock是什么意思

用法例句

Through biochemical and physical processes, they bore and corrode the substrate, thus producing distinct biokarst microforms.

并讨论和展望了生物岩溶微形态研究的前景,开拓生物岩溶研究新思路。

The paper discusses the types and formation mechanisms of the erosional products of biokarst on limestione in Guilin area.

桂林岩溶区石灰岩表面生物岩溶溶蚀形态可分为四类:(1)微溶孔,包括壳状内生地衣微溶孔和藻类微溶孔;(2)溶孔,藻类成因的口小腹大的囊袋状溶蚀;(3)溶坑,藻类、地衣、苔藓及腐殖土成因的柱状、锥状、半球状溶蚀;(4)溶盆,各类生物及腐殖土共同作用而成的壁陡底平的盆状溶蚀。

Age and sedimentology of microbialites after the end-Permian mass extinction in Luodian,Guizhou Province;

贵州罗甸二叠纪末生物大灭绝事件后沉积的微生物岩的时代和沉积学特征

Abundant microbialites,from the Middle Cambrian Qinjiamiao Group in the Gudongkou section near Xingshan County of Hubei Province,south China,were studied and described in detail by macro-and microscopic observations.

通过野外考察及对岩石光面的观察,发现湖北兴山古洞口剖面中寒武统覃家庙群微生物岩的类型主要为波状-半球状叠层石,少量为凝块石。

This paper refers to a 3 m thick microbialite in the Permian-Triassic boundary section in Laolongdong, Chongqing.

剖面研究揭示,重庆老龙洞地区二叠系—三叠系界线上下地层中发育厚约3m的微生物岩。