Basic, acidic extrusive and volcanoclastic rocks are known as the main rock types.

石炭纪末期本区的岩浆活动开始,早二叠世晚期和晚二叠世早期是两个主活动期。

In eastern China, transgression occured periodically during Eogene, and formed specially paleobio-cenosis,mineral association and rock type.

在中国东部早第三纪沉积演化过程中曾周期性地发生过海侵,从而形成了具有海相特征的岩石类型、古生物组合。

Molar-tooth Carboantes, which is a bizarrerie rock type, holds an important position in Meso-Neoproterozoic paleo-ocean carbonate deposition.

微亮晶(臼齿构造)碳酸盐岩是一种奇妙的岩石类型，在中-新元古代的古海洋碳酸盐岩沉积中占重要地位。

The middle oil-member is characterized by medium-sized sandstone and pebbled sandstone, with fair sorting and subangular sphaericity.Rock types mainly were feldspar debris sandstone.

中油组主要沉积中砂岩和含砾中砂岩，粒度整体较粗，分选性较好，磨圆度以次棱角状为主，岩石类型为长石岩屑砂岩。

The kamafugite is a rare type of ultra-potassic rocks, and a rock series contained generally that rock types of alnoite, olivine-melilitite, mafurite, katungite and wugantite and so on.

摘要钾霞橄黄长岩是一种非常稀少的超钾质火山岩，也是一个岩石系列，包括黄长煌斑岩、橄榄石黄长岩、白橄黄长岩、橄辉钾霞岩和乌干达岩等多种岩石类型。