early proterozoic

常见例句

Wengquangou boron-iron deposit occurred within the rocks of Lieryu Formation in Liaohe Group, early Proterozoic.
翁泉沟硼铁矿床赋存于早元古宙辽河群里尔峪组。
The early Precambrian in Jilin province includes the Archaeozoic granite-greenstone belt, early Proterozoic Ji'an Group and mid Proterozoic Laoling Group .
吉林省早前寒武纪地质包括太古宙花岗—绿岩带、早元古代集安群和中元古代老岭群。
The Precambrian intrusive rocks in western Shandong area mainly fall into two parts:the Taishanian(Archean)and the Aolaishanian(early Proterozoic ) intrusive rocks.
鲁西地区的前寒武纪侵入岩分为太古代泰山期和早元古代傲徕山期二部分。