protolith 中文意思是什麼
protolith
解釋
原巖-
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
摘要主要論述了與早前寒武紀變質地層（學）有關的8個方面的問題：早前寒武紀變質地層的研究概況；早前寒武紀變質地層的復雜性和研究難度；早前寒武紀變質地層研究的思路和工作方法；早前寒武紀變質巖石地層單位巖群、巖組和雜巖的劃分問題；重要區域性不整合的研究；鑒定變質地層的原巖類型、巖石性質和恢復古環境；正確區分變質地層和ttg巖系以及其他變質深成巖；變質地層時代的確定。 -
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巖組的巖性主要是各種角閃巖類和片麻巖類夾有片巖，偶有變粒巖、大理巖。 b巖組的巖性主要是各種片巖夾有大理巖、石英巖。 c巖組主要是一套大理巖，偶有片麻巖。
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