plutonic rocks 中文意思是什麼
plutonic rocks
解釋
深成巖。-
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。 -
In terms of their geological and geochemical characteristics as well as the ages of these plutons, these three sub - belts from south to north are interpreted as syn - subductional, syn - collisional and post - collisional plutons respectively. composed of quartz diorite and quartz monzonite, the syn - subduction plutonic rocks are confined only to the south kunlun massif
俯沖期侵入巖僅出露于蛇綠巖帶之南的昆南地塊上，巖性組合為石英閃長巖-石英二長巖，三個主要巖體獲鋯石u - pb年齡值為481ma 、 461ma 、 452ma ，均為奧陶紀。 -
Syn - collisional plutonic rocks aie composed of granodiorite and adamellite, which exposed al
由於極度艱苦的工作條件限制，本區研究程度極低。
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