Proterozoic

PTt Path and Crustal Thermodynamic Model of Late Archaean Early Proterozoic High grade Metamorphic Terrain in North China

华北晚太古代－早元古代高级变质区的变质PTt轨迹及其地壳热动力学演化模式

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Tectonic and geochemical development of Archaean and Proterozoic mobile belts in eastern China

中国东部太古和元古活动带的构造和地球化学的发展

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This type of graphite deposits were formend in the Late Archaean to Early Proterozoic.

该类矿床的成矿时代多集中在晚太古代末至早元古代初期,并且具有全球性.

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The ore bed hosts in boracic granulite of Lieryu formation, Liaohe group of lower proterozoic.

矿层赋存于早元古界辽河群里尔峪组含硼变粒岩段。

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Microstructural Research on Deformation& Metamorphism of Late Proterozoic Fold Belt, North Margin of North China Platform

华北陆台北缘晚元古代褶皱带变形&变质作用的显微构造研究

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This paper divides the Paleozoic-Middle-Upper Proterozoic marine basins into the closed bearing basin type and open relief basin type.

本文把古生界一中、上元古界海相盆地分为封闭型承压盆地和开启型泄压盆地两大类型。

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The Middle Proterozoic granitoids was an intraplate type produced in transitional crystalline basement before plate collision.

中元古界的花岗岩类是板块碰撞前过渡性结晶基底上局部熔融花岗岩类.

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Ankerite microclinite, a special type of rock, is closely related to the ore-forming process of massive sulfide deposits in the East Liaoning Proterozoic rift.

铁白云石微斜长石岩作为一种特殊岩石类型，在辽东元古宙裂谷块状硫化物矿床中与成矿关系密切。

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The confirmation of continental flood basalt of the Proterozoic Xixiang Group in the South Qinling mountains, and Its Geological Implications

南秦岭元古宙西乡群大陆溢流玄武岩的确定及其地质意义

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GLOBAL DISTRIBUTION OF THE PROTEROZOIC SPHAEROMORPH ACRITARCH Valeria lophostriata ( JANKAUSKAS )

元古代光球疑源类Valerialophostriata ( Jank. )的全球分布(英文 )

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The middle Proterozoic crystalline schist series in the Panzhihua-Xichang region has undergone progressive regional metamorphism.

攀西中元古结晶片岩系遭受了前进区域变质作用。

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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.

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There is the collision orogenic belt which was developed in late middle Proterozoic era, in north margin of North China plate. The belt extends from Langshan in Inner Mongolia to Western Liaoning province and Eastern Jilin province. Its length is over 2 000 km.

华北板块北缘发育一条中元古代晚期大陆边缘碰撞造山带，它由内蒙西部狼山起向东延伸到辽西和吉林东部一带，全长2000余km。

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According to analysis of sedimentary characters and geochemistry characters of Luanchuan Group of New Proterozoic Era.

通过对新元古代栾川群地层沉积特征及地球化学特征分析,栾川群形成于被动大陆边缘构造环境.

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There are Middle | Lower Devonian Sanhuokou Group and Middle | Upper Proterozoic Bikou Group in the ore district.

矿区出露中下泥盆统三河口群和中上元古界碧口群.

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Geological features and tectonic evolution of the Middle Proterozoic Longquan group in southern Zhejiang

浙南中元古界龙泉群的地质特征及构造演化

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Geochemistry of Proterozoic Island-arc volcanic rocks in Northwest Zhejiang

浙西北晚元古代岛弧火山岩的地球化学研究

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Primary tectonic environment and deformation of strata of Proterozoic metamorphics in the qimen-shexian region of Southern Anhwei

皖南祁门&歙县地区元古界变质岩地层原始构造环境和形变

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Proterozoic is feral planting often is to grow in crows, rarely and insect pests is invaded.

原生地野生种往往是成群生长, 很少有病虫害侵袭.

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The area had come through many times reformation of tectonic cycle, the tectonic distortion of marine facies Mesozoic group and Proterozoic erathem were very intricate.

该区经历多期构造活动改造，海相中、古生界构造变形极为复杂。

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ChronologyThe data of chronology explanates that both of them are belong to Proterozoic Era.

时代方面的数据表明,两者同属于古元古代.

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Before Later Proterozoic era , in this area more than two times of thermodynamic metamorphism took place.

在晚元古代以前该地区至少发生过两次热动力变质作用.

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In this work three successive extensional events are identified according to three groups of representative Proterozoic ages obtained in rock samples from Shanxi and Hebei provinces by the authors.

本文根据作者在山西、河北一带获得的三组元古代年龄数据，即基性岩墙群1.885Ga的Rb-Sr等时线年龄；

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Sedimentary Record of the Proterozoic Changchengian Volcanic Events in Beijing and Its Neighbouring Area

北京及邻区长城纪火山事件的沉积记录

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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.

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Massif-type anorthosite is the most common type of anorthosite and with distinct characteristics. Most massif-type anorthosite bodies are Proterozoic ranging from 2.1 Gato 0.9 Ga in formation ages, representing an important tectono-thermal event in the earth evolution.

其中，岩体型斜长岩仅赋存于前寒武纪变质地体中，形成时代主要为元古宙（2.1~0.9Ga），代表地球演化史上很重要的构造-热事件。

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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.

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Wangjiawaizi gold deposit occurs in Lower Proterozoic opimetamorphic rock series.

王家崴子金矿床赋存于辽南古元古代浅变质岩系中.

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The Proterozoic and Palaeozoic are two main metallogenic periods in the region.

西北地区以元古宙-古生代金属成矿为显著特色.

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The ultra-high δ 34S values of sedimentary pyrite, exceeded+ 40 ‰, occurring in interglacial manganese mineralization beds ( Datangpo Stage) of terminal Proterozoic in southern China are response to global snowball Earth.

我国南方末元古代间冰期的锰矿层（大塘坡期）出现了普遍超过+40‰的异常高δ34S值的沉积黄铁矿，这是全球性的雪球事件的响应。

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