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- The Proterozoic Era. 原生代,元古代
- TECTONIC BASEMENT OF THE PROTEROZOIC ERA IN FENGHUANGSHAN AREA OF SOUTHERN QINLING 南秦岭凤凰山地区元古代构造基底特征
- 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;
- Dating of Sm Nd, Rb Sr isotopic systems and its dynamic singificance for the Proterozoic augen granite in Yunkai area. 云开元古宙眼球状花岗岩Sm-Nd和Rb-Sr同位素体系定年及其动力学意义
- It is correlated with the Proterozoic unconformity-related uranium deposit in Australia. 进而总结了华南中生代不整合型成因模式;
- The Proterozoic climate was still warm and wet, but compared with that of the Archaeozoic Eon, the temperature fell a little. 元古宙的气候仍是温暖而潮湿的,但较太古宙温度有所降低。
- My professor studies flora of the Palaeozoic Era. 我的教授研究古生代的植物群。