成矿时代为中元古代早期。
The mineralization epoch is the early period of mesoproterozoic era.
本文阐述了华南中元古代晚期活动陆缘特征。
This paper deals with the features of late Middle Proterozoic active continental margin in South China.
赣北地区中元古代双桥山群修水组广泛出露。
The Xiushui Formation of Mid Proterozoic Shuangqiaoshan Group is widely distributed in North Jiangxi .
中元古代至早古生代塔里木板块与羌塘-扬子板块发生解体。
From the Middle Proterozoic to Early Paleozoic, the Tarim plate and the Qangtang-Yangtze plate were most probably disintegrated.
由此看来，“白云质大理岩”很可能是中元古代碳酸岩火山岩。
Therefore, based on its isotopic characters, the "dolomitic marble" is more likely of volcanic carbonatite rock formed during middle Proterozoic era.
息烽磷矿是黔中元古代震旦纪陡山沱期磷块岩矿床的重要组成部分。
The phosphorus reserves in Xifeng are a main composition of phosphorus rock deposit formed during the Sinian Period in the center of Guizhou.
中元古代末的神功运动表现强烈，青白口纪末的晋宁运动叠加褶皱明显。
The Shengong Movement in late Middle Proterozoic Era was strong and the superimposed fold of Junning Movement in late Qingbaikou Period was clear.
中元古代与新元古代两个不同方向的地震断裂带分别控制着两个时期的盆地边界。
Two seismic fault belts with different directions in Mesoproterozoic and Neoprotertozoic control the basin boundaries of the two stages respectively.
本组为评估中元古代生命状况、古环境和前显生宙生物地层提供了重要的生物信息。
This Formation provides important paleobiological information from which to assess status of Mesoproterozoic life, and to evaluate paleoenvironmental conditions and pre_Phanerozoic biostratigraphy.
形成晶体的碳质来源不均一，反映了中元古代华北陆台下地壳岩浆成分的不均一性。
Heterogenity of the carbon source implies the magma beneath the North China platform was not homogeneous at Late Mesoproterozoic.
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 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 early Precambrian in Jilin province includes the Archaeozoic granite-greenstone belt, early Proterozoic Ji 'an Group and mid Proterozoic Laoling Group.
这些资料表明，在中元古代真核生物已大量存在，故其出现的时间要早于1850百万年。
The present materials show that there are a large number of eukaryotes in Middle Proterozoic and the eukaryotes should have appeared earlier than 1850 my. (B. p).
在燕山地区中元古代常州沟组中发育有大量的潜穴化石，潜穴产于常州沟组中部的泥质粉砂岩中。
A large amount of burrow fossils are found in pelitic siltstone in the middle Changzhougou Formation of the Mesoproterozoic in the Yanshan area.
地球动力学分析表明，古中元古代时，海南岛西部可能经历了一次由“开”向“合”转变的构造演化史。
Geodynamic analysis shows that the tectonic evolution history from "spreading" state into "closing" state might have happened in Paleo Mesoproterozoic age on western Hainan.
闽西北中元古代地层在加里东运动期间遭受了变形变质作用，形成了一套片岩—片麻岩—混合岩系变质岩。
The Middle Proterozoic group Strata in northwest Fujian had been Subjected metamorphism in Caledonian orogeny, and formed a metamorphic rock association of schist-gneiss-migmatite series.
这些结果证实，大别地区存在中元古代晚期到新元古代早期的岩浆作用，且这一时期扬子板块有不同程度的地壳生长。
The results showed that the late Mesoproterozoic to early Neoproterozoic magmatic activities occurred in the Dabie area, which might also be a period of crustal growth in the Yangtze block.
康山金矿田位于华北地台南缘，花山—龙脖背斜南翼的马超营断裂带内，出露地层主要为太古宙太华群及中元古代熊耳群。
Kangshan gold field is situated in the southern margin of North China platform and within the Machaoying faulted zone which is located in the southern limb of Huashan Longbo anticline.
吉峰拉马提岩的形成时代为中元古代，其形成环境可能是地壳拉伸减薄，上涌的科马提质岩浆在淬火快速冷却的条件下形成。
The komatiites were formed in Mesoproterozoic, in a tectonic environment of tensile crust, while ther ising komatiite magma was quenched a nd rapidly cooled.
吉峰拉马提岩的形成时代为中元古代，其形成环境可能是地壳拉伸减薄，上涌的科马提质岩浆在淬火快速冷却的条件下形成。
The komatiites were formed in Mesoproterozoic, in a tectonic environment of tensile crust, while ther ising komatiite magma was quenched a nd rapidly cooled.
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