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- The Miaogou boron deposit occurs in granulitite of Liaohe group,lower proterozoic erathem,locating at Daxicha village,Kuandian town,Liaoning. 辽宁宽甸大西岔乡庙沟硼矿赋存于下元古界辽河群含硼变粒岩层位。
- Basic volcanic rock-banded magnetite puartzite-carboncaceous-siliceous slate(siliceous graphiuc schist)formation which should be put under Upper Archaeozoic to Lower Proterozoic Erathem is in existence in the Hekou Group. 河口群中存在基·性火山岩、条带状磁铁石英岩、碳硅质板岩(硅质石墨片岩)三组合建造,应属晚太古代未-早元古代地层。
- Marine facies Mesozoic group and Proterozoic erathem; 油气成藏;海相中;吉生界;
- The Limited Strain Analysis of Shuang qiao Mountain Group Rocks of the Middle Proterozoic Erathem In Northwest Jiangxi 赣西北中元古界双桥山群岩石有限应变分析
- Keywords Western Tianshan Mountain;Proterozoic erathem;The local plateau facies; 西天山;元古界;局限台地相;
- THE CHARACTERISTICS OF THE PETROCHEMISTRY AND THE TRACE ELEMENTS IN THE KUANPING GROUP OF THE MIDDLE PROTEROZOIC ERATHEM 中元古界宽坪群岩石化学及微量元素特征
- MICROPALEOBOTANY OF MIDDLE PROTEROZOIC ERATHEM AND ITS SIGNIFICANCE OF STRATUM IN XUXUGOU VALLEY OF YECHENG COUNTY IN XINJIANG 新疆叶城县许许沟中元古界微古植物组合及其地层意义
- A PRELIMINARY DISCUSSION ON THE UNCONFORMITY RELATIONSHIP BETWEEN MIDDLE AND LOWER PROTEROZOIC ERATHEM ON THE NORTHERN MARGIN OF HUANGLING FAULTED DOME 试论黄陵断隆北缘中、下元古界的不整合关系
- Keywords making hydrocarbon later,contrast oil source,Marine facies Mesozoic group and Proterozoic erathem,Jiangsu lower Yangtze area; 晚期生烃;油源对比;油气成藏;海相中;吉生界;苏下扬子区;
- Proterozoic erathem 元古界
- Early Proterozoic high-pressure metamorphism in the Wutaishan. 五台山早元古代高压变质作用研究。
- Title: Early Proterozoic high-pressure metamorphism in the Wutaishan. 关键词:高压变质作用;顺时针P-T轨迹;五台山
- Shagou deposit mainly lies in the metamorphic rock of Taihua Group,Archaeozoic erathem. 本矿床主要的赋矿地层为新太古界太华群高级变质岩。
- The Yangjin'gou scheelite deposit occurs in Wudaogou group of lower palaeozoic Erathem. 杨金沟白钨矿床产于下古生界五道沟群中。
- Probably formed in Early Proterozoic, it was rejuvenated repeatedly in late stage. 其形成时间可能为早元古代,后期又有多次复活。
- Jiaodong Group ofthe Archean Erathem was the source bed of the gold deposits of the area. 上太古界胶东群是本区金矿床主要矿源层;岩浆活动是成矿物质的载体;
- 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 oil resource which formed in Mesozoic and Cenozozic erathem accounts for about 87 percent. 石油资源主要分布于中、新生界,约占87%25,天然气资源主要分布于古生界,约占51%25;
- 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。
- Gas reservoirs of upper palaeozoic erathem contains different gas layers,it can be produced by separate layer fracturing. 为解决多油层分层压裂作业管柱一旦砂埋封隔器难以解封的难题,研制了多功能分层压裂开关。