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
The early Precambrian in Jilin province includes the Archaeozoic granite-greenstone belt, early Proterozoic Ji'an Group and mid Proterozoic Laoling Group. 吉林省早前寒武纪地质包括太古宙花岗&绿岩带、早元古代集安群和中元古代老岭群。
The Proterozoic VMS Copper Deposit in Longmen Mountain Area of Chuanxi: Evidence from Sulphide Trace Element and Sulfur Isotope 川西龙门山地区元古代VMS铜矿床:硫化物微量元素和硫同位素证据
Restudy of paleomagnetism of rocks from Chuanlinggou formation of Proterozoic Changcheng System in Jixian county, north China 华北蓟县元古界长城系串岭沟组岩石的古地磁再研究
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。
Rapakivi granite, a special kind of granite with rapakivi texture, mostly occurs in Proterozoic cratons. 环斑花岗岩是一种特殊结构的花岗岩类,并且多数产在元古宙克拉通中。
The Caledonian metamorphism and metamorphic facies series division of Middle Proterozoic group strata in North West of Fujian Province 闽西北中元古界地层加里东变质作用和变质相系划分【地质】复层,叠层
No precise datum related to magmatism of Early Proterozoic or earlier ages is found, which might reveal the lack of old continent crust in this area. 研究表明,本区古元古代及更早时期的岩浆活动确切记录很少,反映出赣东北地区可能没有古老的陆壳。
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。
The tectonic setting and attribute of the Bikou Terrane related to the Proterozoic Bikou Group have been disputed. 有关中元古界碧口岩群的成岩构造环境及中元古代碧口地体构造属性长期存在争议。
This metallogenic province is characterized by the Mid-Late Proterozoic and the Late Paleaozoic mineralizations. 此巨型成矿域以发育中、晚元古代及晚古生代成矿作用为其特点。
Petrological and mineralogical characteristics of Proterozoic peraluminous granitoids in South Anhui Province 安徽南部元古代过铝花岗岩体的岩石学与矿物学特征
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。
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
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。
In the end, the relation between the metallogenesis and the evolution of Archaeozoic and early Proterozoic earth crust is discussed basing upon the theory of rift. 最后采用裂谷理论讨论了成矿作用与太古代和早元古代地壳演化的关系。
Analysis of the growing process of middle and Upper Proterozoic columnar stromatolites 中上元古界柱状叠层石生长过程浅析
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。
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。
The Xingdong Group distributed in the northern Xiao Hinggan Mountains and the Mashan Group in the Jiamusi area, Northeast China, are always considered to be Early Proterozoic metamorphic rocks. 中国东北地区小兴安岭北段分布的兴东群与佳木斯地区的麻山群一直被认为是早元古代形成的变质岩系。
The Middle Proterozoic Dahongyu Formation is solely compound sedimentary stratigraphy of Middle to Upper Proterozoic age in the Yanshan region, which is composed of terrestrial rocks and carbonatite. 大红峪组为燕山地区惟一中、新元古界碎屑岩与碳酸盐岩混合沉积地层。
From the Middle Proterozoic to Early Paleozoic, the Tarim plate and the Qangtang-Yangtze plate were most probably disintegrated. 中元古代至早古生代塔里木板块与羌塘-扬子板块发生解体。
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。
Basic Characteristics and the Stratigraphic-Time Basis of Middle and Lower Proterozoic Metamorphic Rocks in the Yongding Area of Fujian Province 福建永定地区下、中元古界变质岩基本特征及地层时代依据
Calm zone of cancer Proterozoic tectonic slices along the northern margin of North China plate 北半球副热带无风带华北板块北缘活动带元古宙构造岩片
The Precambrian intrusive rocks in western Shandong area mainly fall into two parts: the Taishanian ( Archean) and the Aolaishanian ( early Proterozoic) intrusive rocks. 鲁西地区的前寒武纪侵入岩分为太古代泰山期和早元古代傲徕山期二部分。
The data offered here favor that the collision between the Yangtze and Cathysia blocks happened in the late Proterozoic era. Before Later Proterozoic era, in this area more than two times of thermodynamic metamorphism took place. 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。在晚元古代以前该地区至少发生过两次热动力变质作用。
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。
Proterozoic strata and characteristics of the evolution of the sedimentary basin in Guangxi 广西元古代地层及其沉积盆地演化特征
Ore-bearing quartz veins are hosted in dense fissure belts controlled by NW-trending faults in the low metamorphic rocks of Proterozoic Xiushui Formation, Shuangqiaoshan Group. 矿体赋存于双桥山群修水组浅变质岩系中及北西向断裂控制的裂隙密集带中;