Archean

Research on Archean Geohistory and Developed Process of Iron Deposit at Wuyang in Henan Province

河南省舞阳铁矿田太古代古地史及铁矿的形成过程研究

It's 100 % pure natural and is extracted from an archean plant -- Ginkgo Bibloba Tree.

100%纯天然,提取自太古代望族植物 公孙 树.

The Jinbeizhuang Archean metamorphic iron ore deposit is situated in where the north side of Yanshan settle-zone crosses Inner Mongolia Eath's Axis.

近北庄太古代变质铁矿床位于燕山沉降带北侧与内蒙地轴的交接部位。

The Hongtoushan copper-zinc deposit was formed in submarine volcanic eruptions-sedimentary environment in Archean intracratonic rift trough.

红透山式铜 - 锌矿床形成于太古代克拉通裂谷槽盆中海底火山喷发 - 沉积环境.

Discordances existed between Fangniushan quartzite series and underlying Archean Eon metamorphic granite series, and overlying the Mesoproterozoic Era Xionger Group.

顶、底界线清晰，与下伏太古宙变质花岗岩系及上覆中元古界熊耳群均呈角度不整合接触。

The mineralized age of Archean bif-hosted gold deposits in Wutai Mountain Area

五台山区太古宙铁建造型金矿的成矿年龄

A bimodal mixing model of the Archean upper crust

太古代上地壳的双峰式模型

On the Archean geology of the northern edge of North China landmass

关于华北陆块北缘太古宙地质的思考

The most important metallogenetic epoch is Mesozoic ( Jurassic& Cretaceous) gold mineralization, whereas the Archean greenstone and Cenozoic epithermal types gold deposits are minor in China.

中国金矿床最重要的成矿时代为中生代（侏罗&白垩纪），缺乏国外广泛出现的新太古代绿岩型金矿化和新生代金矿化。

The komatiite in this area is very similar to those in Archean greenstone belts abroad with respect ot the petrochemical composition, zoning, special spinifex texture, characteristics of regional metamorphism and ore potentiality.

与国外太古代绿岩带科马提岩对比，岩石化学成分、分带性、特有的鬣刺结构及区域变质特征、含矿性等方面亟相似。

The Qingyi ductile shear zone ( QDSZ) developed in Late Archean is a large-size ductile shear zone in granite of the western Shandong Precambrian basement.

青邑韧性剪切带是晚太古代末期发育在鲁西前寒武纪基底花岗岩中一条规模较大的韧性剪切带。

It is much more complex and difficult to study Archean stratigraphy than Phanerozoic stratigra-phy.

太古宙地层与显生宙地层相比,具有很大的复杂性,研究难度大.

The deformation of the Archean tonalite bodies in Jinzhou area, Liaoning Province and the tectonic environment of emplacement

辽宁金州地区太古宙英云闪长岩体的变形与侵位的构造环境

Near the d é collement structure surface, at the bottom of the Cambrian and the top of the Archean, developed an interjacent fractured zone which shows high porosity and high permeability.

构造破碎带附近古生界底部和太古宇顶部出现破碎带，表现为高孔隙度、高渗透率带。

The division of Archean stratum and main tectonic event of Hebei Province

对河北省太古宙地层及主要构造事件的划分

Metamorphic PTT path of the Archean granulite-facies terrane in Jining district, Nei mongol, and its tectonic significance

内蒙集宁地区太古宙麻粒岩相变质作用的PTt轨迹及其大地构造意义

Various geochronometric methods have been applied to dating of important geologic events in complex Archean terranes.

在复杂的太古代地体的重要地质事件定年中已采用了多种地质年龄测定方法.

The REE Geochemistry of Granitic Rocks in Qingyuan Archean Greenstone-Granite Terrene dried pungent stigmas of the Old World saffron crocus.

清原太古代花岗&绿岩区花岗岩的稀土地球化学干的、芬芳的、古代藏红花属的柱头。

Their source is the Archean Group.

它们皆为S型,其源岩为太古界.

The redelimited Jiapigou gold-concentrated area is composed of Archean granitoid-greenstone belts and high grade metamorphism areas.

重新界定的夹皮沟金矿集中区包括了太古宙花岗-绿岩带和高级变质区两个组成部分。

It is suggested that Long Cao Ping gneiss might be an old ( late Archean era) and basic TTG suite after discussing the characteristics of geology, petrology and geochemistry.

通过对其地质特征、岩石学特征、地球化学特征的讨论，初步认为是一套古老的（晚太古代）偏基性TTG岩套。

Felsic gneiss is the most widely distributed rock type in Archean metamorphic complex areas.

长英质片麻岩是太古宙变质杂岩区最主要的岩石类型.

A discussion on the stratigraphic division and geochronology of supracrustal rocks of Archean eon in the East Hebei and their environmental conditions

冀东太古宙表壳岩的地层划分及形成环境&冀东太古宙地质问题讨论之一

An obvious mass-independent sulfur isotope fractionation was first observed in Archean stratiform sulfides from Xintai area, Shandong Province.

笔者首次在山东新泰地区新太古代层状硫化物中观测到了明显的硫同位素非质量分馏效应。

Mass-Independent Sulfur Isotope Fractionation Effect in Archean Stratiform Sulfides from Xintai Area, Shandong Province

山东新泰太古代层状硫化物中的硫同位素非质量分馏效应

ARCHEAN METAMORPHIC PLUTONIC ROCKS IN YIXIAN COUNTY, LIAONING PROVINCE Jinningian Plutonic Belt in the Foziling Group and Its Tectonic Implication

辽宁义县地区太古宙变质深成岩佛子岭岩群中的晋宁期深成岩带及其构造含意

The deposit occurs in the deep metamorphic rock of Archean Jianping formation, with the orebodies controlled by NW fault structure. The gold mineralization is closely related to the Mesozoic intrusion rock and the ore is mainly of quartzite vein type.

矿床产于太古代建平群深变质岩中，矿体产出受NW向断裂构造控制，金矿化与中生代侵入岩关系密切，矿石类型主要为石英脉型。

Advances in the study of Archean lode gold deposits

太古代脉状金矿研究的某些新进展

the nickel mineralization is contained in a layered basic mass if surrounded and underlain by an archean gneiss complex.

此处镍矿化产于一层状基性岩块内，其四周和下面都为太古代片麻岩杂岩围绕。2.Hazard potential evaluation of regions underlain mined caverns is one of difficult technical problems in highway engineering.采空区的危害性评价是矿区高速公路建设技术难题之一。

Such low levels of sulfate indicate that the Archean atmosphere was virtually devoid of oxygen.

如此低的硫酸盐浓度,表示太古代大气中的氧气极为稀薄.