pre-sinian 中文意思是什麼
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Pre - sinian paleostructural framework and major geological events in the huangling anticline, western hubei
鄂西黃陵背斜地區前南華紀古構造格架及主要地質事件 -
It agrees with the fact that the gabbro is intruded by late ordovician granitic pluton. the pre - sinian basement strata exposed in the north kunlun massif are later archean - neoproterozoic milan group, changcheng system kaqiang group, jixian system liushui formation and qingbaikou system sulu formation
被蛇綠巖所分隔的昆北地塊上出露的前震旦紀基底地層為：晚太古代-新元古代米蘭巖群，長城系卡羌巖群，薊縣系流水巖組和青白口系絲路巖組。 -
According to the type and scale of stratigraphic contact, four synthems such as basement ( pre - sinian ), lower ( palaeozoic ), middle ( mesozoic ) and upper ( cenozoic ) are divided, and seven sub - synthems are subdivided
本文依據地層接觸關系的類型和規模，將本區劃分為基巖（前震旦系） 、下（古生界） 、中（中生界） 、上（新生界）四個構造層和內部的七個構造亞層。
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