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- The country rock of the orebody are dolomites of Gaoyuzhuang Formation(Middle Proterozoic era). 矿床围岩以中元古界高于庄组白云岩为主。
- The progeny of vocahic spurting inJinningian is studied through isotopic era, which belonys to the morning of new proterozoic era. 经同位素年龄研究属晋宁期火山喷发产物，时代归属为新元古代早期。
- VMS mineralization,occurred in the middle Proterozoic era,formed cupriferous source bed. 早期矿化发生于中元古代晚期,形成含铜矿源层;
- The data offered here favor that the collision between the Yangtze and Cathysia blocks happened in the late Proterozoic era. 现有资料支持华夏和扬子两地块在晚元古代碰撞拼合的解释。
- 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。
- It is shown that the prevailing metallogenic periods of associated gold deposits of magmatic type are Proterozoic Era and Hercynian Period. 指出岩浆岩型伴生金矿床最主要的成矿期为元古代和晚古生代；
- During the evolutionory history of gold mineralization,Proterozoic Era is one of the most important periods,it is characterrized... 元古宙为地球历史上最重要的金矿成矿期之一,以盛产沉积岩型、变质碎屑岩型和古砾岩型金矿为突出特征。
- The field evidences indicate the presense of two significant dis continuities that delimited three tectonic strata of the mid - late Proterozoic era. 区内存在两个重要不整合面，并将中、新元古代地层分割成三个构造层。
- There is a suit of mica schist among metamorphic basement of Early-Middle Proterozoic era at Xiangshan Uraniun Mineral Field. 在相山铀矿田的早中元古代变质基底中,出露一套云母片岩。
- Wang Jia Wei Zi gold ore deposit is a new type gold mineral deposit in hypabyssal metamorphic rock series of early proterozoic era in south Liaoning. 王家崴子金矿床是辽南早元古界浅变质岩系中的一种新型金矿床。
- Because the composite vein type ore of Jinchangyu gold deposit pre-dates the pink dyke the gold mineralization should occur in late Proterozoic era. 金厂峪金矿床的的复脉型矿化早于肉红色钠长岩脉 ,故其矿化的时代应在晚元古代。
- CHEN J B.A priliminary discussion on geological evolution of Sino-Korea paraplatform during Middle-Late Proterozoic era [J].Geological Review, 1983, 29(1): 1-8. [1]陈晋镳.;中朝准地台中-末元古代地质演化的初步探讨[J]
- Na-rich basic volcanic-sedimentary metamorphic formation of Dahongshan group of Proterozoic era is discordantly covered by the “red bed” of Mesozoic era. 本文研究表明,矿床为火山喷流热水沉积-变质-改造成因。
- The major structure in the area is the NE-NNE folded belt consisting of Banxi Group of the Middle Proterozoic era to the Ordovician system of the Early Paleozoic era. 由新元古界板溪群至下古生界奥陶系所构成的NE-NNE向褶皱带为区内主体构造；
- The Proterozoic Era. 原生代，元古代
- Middle-late proterozoic Era and early Palaeozoic Era are the main metallogenic epochs. In this paper, the geological features, genesis and evaluation criteria for prospecting of the superlargetype Cu-Pb-Zn deposits are emphasized. 主要成矿时代为中晚元古代和早古生代,本文着重讨论其超大型铜铅锌矿床的地质特征、成因及找矿评价标志。
- Of, belonging to, or being the oldest and largest division of geologic time, preceding the Cambrian Period, often subdivided into the Archeozoic and Proterozoic eras, and characterized by the appearance of primitive forms of life. 前寒武纪的地质年代中最古老和最大的阶段的、属于这一阶段的或处于这一阶段的，其前为寒武纪期，寒武纪期又可细分为始生代和原生代，特征为原始生命形式的出现
- My professor studies flora of the Palaeozoic Era. 我的教授研究古生代的植物群。
- Concorde inaugurateda new era in aeroplane travel. 协和式飞机开创了空中旅行的新纪元。
- Some say the computer has ushered in a new era. 有人说电脑引入了一个新时代。
