English translation for "protolith"

原岩

Example Sentences:

	1.	The lithology of c petrofabric is marble , accidental gneiss . by field attitude , rock association character , petrography and petrochemistry , we know that the protolith of a petrofabric is mainly composed of pelite , sandstone and basic to acidic volcanic , that of b petrofabric mainly a suite of pelite , sandstone ( maybe include volcanic ) , and that of c petrofabric mainly limestone , impurity limestone , a few of pelite and pyroclastic rock A岩组的岩性主要是各种角闪岩类和片麻岩类夹有片岩，偶有变粒岩、大理岩。 b岩组的岩性主要是各种片岩夹有大理岩、石英岩。 c岩组主要是一套大理岩，偶有片麻岩。
	2.	Eight aspects related to the study of early precambrian metamorphic stratigraphy are dealt with in this paper : general situation of the study ; complexity of the stratigraphy and difficulties of the study ; thoughts and methods of the study ; division of rock suite , rock group and complex rock ; researches on important regional discordances ; types and characteristics of protolith and recovery of palaeoenvironment ; correct differentiation of the metamorphic strata , ttg rock system and other metamorphic plutonic rocks ; determination of the ages of the metamorphic strata 摘要主要论述了与早前寒武纪变质地层（学）有关的8个方面的问题：早前寒武纪变质地层的研究概况；早前寒武纪变质地层的复杂性和研究难度；早前寒武纪变质地层研究的思路和工作方法；早前寒武纪变质岩石地层单位岩群、岩组和杂岩的划分问题；重要区域性不整合的研究；鉴定变质地层的原岩类型、岩石性质和恢复古环境；正确区分变质地层和ttg岩系以及其他变质深成岩；变质地层时代的确定。

Similar Words：

"protolepidodendron" English translation, "protolepidoptera" English translation, "protoletin" English translation, "protoleukocyte" English translation, "protolignin" English translation, "protolithic" English translation, "protolithionite" English translation, "protology" English translation, "protoloma" English translation, "protolyptosporangiopsida" English translation