元古宙,Proterozoic英语短句,例句大全

元古宙,Proterozoic
1)Proterozoic[英][,pr?t?r?'z?uik][美][,prɑt?r?'zo?k]元古宙
1.Discussion on Proterozoic K- and REE-rich sedimentary rocks in North China as ore source of Bayan Obo rare earth deposits;关于华北元古宙富钾、富稀土沉积岩是白云鄂博大型稀土矿床矿源层的讨论
2.The Characteristics of Proterozoic Stratum in Northern Area of Western Qinling;西秦岭北部地区的元古宙地层特征
3.Research Progress in the Petrogenesis of the Proterozoic Anorthosite Massifs;元古宙岩体型斜长岩的特征及研究现状

英文短句/例句

1.GEOLOGICAL SIGNIFICANCE OF THE NEOARCHEAN GLOBAL CRATONIZATION EVENT AND THE BOUNDARY BETWEEN ARCHEAN AND PROTEROZOIC新太古代全球克拉通事件与太古宙-元古宙分界的地质涵义
2.PROTEROZOIC TECTONIC SLICES ALONG THE NORTHERN MARGIN OF NORTH CHINA PLATE华北板块北缘活动带元古宙构造岩片
3.TECTONIC INVIRONMENT AND LITHOSPHERE STRUCTURE IN THE EARLY PROTEROZOIC IN EAST LIAONING辽东早元古宙构造环境及岩石圈结构
4.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。
5.THE GEOLOGICAL FEATURES OF THE LATE ACHAEAN-EARLY PROTEROZOIC IN THE EAST SECTION OF THE NORTHERN EDGE OF THE NORTH CHINA PLATFORM华北地台北缘东段晚太古——早元古宙地质特征
6.A STUDY ON LEAD ISOTOPE OF EARLY PROTEROZOIC STRATA-BOUND LEADZINC ORE DEPOSITS IN EASTERN LIAONING辽东早元古宙层控铅锌矿床铅同位素研究
7.Characteristics of Proterozoic Carbonate Rocks in Jixian by Means of the Oxygen and Carbon Isotope Composition从氧、碳同位素组成看蓟县元古宙碳酸盐岩特征
8.THE EVOLUTIONARY CHARACTERISTICS OF PROTEROZOICEARLY PALEOZOIC CONTINENTAL CRUST IN THE EAST PART OF SOUTH CHINA AND DISCUSSION ABOUT URANIUM PROSPECTING DIRECTION华南东部元古宙-早古生代陆壳组成演化特征与铀找矿方向探讨
9.Flow and Deformation Mechanisms of Hornblende Rocks from the Paleoproterozoic Fold Belt in Liaodong Peninsula;辽东古元古宙褶皱带变质角闪质岩石的流动与变形机制
10.They indicate that the Archeozoic tectonic environment is continental nucleus development and crustal block formation, and the Early Proterozoic tectonic environment is represented as rift.分别代表了太古宙的陆核发展及地块形成和早元古宙的裂谷构造等大地构造环境。
11.Late Archean and Early Proterozoic were the main period for the formation of continental crust.晚太古宙和早元古宙是陆壳形成的主要时期，并已具现今板块活动特征。
12.<title>DISCUSSION ON PLATE TECTONICS AND?MINERALIZING PROCESS IN MIDDLE?LATE?PROTEROZOIC EON IN QINLING OROGENIC BELT?AND ITS ADJACENT AREA秦岭造山带及邻区中晚元古宙板块构造与成矿作用初析
13.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。
14.3. six time intervals from the Proterozoic to Quarternary for correlation of sedimento-minerogenetic series;(3)从元古宙到第四纪沉积成矿系列对比的6大时代段;
15.Metamorphic basement of the jiangnan Proterozoic Paleo-island arc mainly consists of low-grade metamorphic volcanic sedimentary rocks.江南元古宙古岛弧的基底变质岩主要由浅变质的岛弧火山—沉积岩系组成。
16.The determination of above two rock layers proved that main growth layer of South China basement is composed of Proterozoic upper and lower greenstone suites.上述两套岩层性质的确定．证明了元古宙上、下两套绿岩是组成华南基底的主要生长层。
17.Geochemical constraints on the tectonic setting of the Proterozoic turbidites in the Xuefeng Uplift region of the Jiangnan orogenic belt江南造山带雪峰隆起区元古宙浊积岩沉积构造背景的地球化学制约
18.Discussion on Proterozoic K- and REE-rich sedimentary rocks in North China as ore source of Bayan Obo rare earth deposits关于华北元古宙富钾、富稀土沉积岩是白云鄂博大型稀土矿床矿源层的讨论

延伸阅读

元古宙元古宙(距今约25亿年～距今约5.7亿年)ProterozoicEon前寒武纪两个分期的晚期。这一时期形成的地层称元古宇，位于太古宇之上，古生界之下。元古宙原名元古代，是1887年由S.F.埃蒙斯命名的。Proterozoic属希腊字源，意为早期原始生命。一般把元古宙分为古元古、中元古和新元古3个代，界限分别是18亿年前和10亿年前。元古宙与太古宙相比，岩石变质程度较浅，并有一部分未经变质的沉积岩。主要有板岩、大理岩、白云岩、石灰岩、页岩、砂岩和千枚岩等。中国的元古宙地层类型复杂，各地发育程度相差较大。华北地台的中、新元古代地层属稳定类型的盖层沉积，其余为活动类型沉积。新元古代地层上部的红色碎屑堆积，广泛分布于中国南方。元古宙时藻类和细菌开始繁盛，是由原核生物向真核生物演化、从单细胞原生动物到多细胞后生动物演化的重要阶段。叠层石始见于太古宙，而古元古代时出现第一个发展高潮。近年在中国北部的串岭沟组中发现属于16～17亿年前的丘阿尔藻的化石，这是已发现的最老的真核细胞生物。元古宙晚期，无脊椎动物偶有发现。元古宙是一个重要成矿期，主要矿产有铁、金、铀、锰、铜、硼、磷、菱镁矿等。