北大河岩群的蚀源区存在中-新太古代的古老陆壳。
The data also imply that there are Meso- to Neoarchaean continental crusts in the source areas.
地球的历史可分为四个时期——依次经历冥古代、太古代、元古代和显生宙。
The history of Earth is divided into four eons —starting with the earliest, these are the Hadean, Archean, Proterozoic, and Phanerozoic.
地球的历史可分为四个时期——依次经历冥古代、太古代、元古代和显生宙。
The history of Earth is divided into four eons - starting with the earliest, these are the Hadean, Archean, Proterozoic, and Phanerozoic.
最早的生命迹象发现存在于距今38亿年的太古代，但是地球上的生命在显生宙之前并不丰富。
Evidence for life has bee found in the Archaean about 3.8 billion years ago, but life did not become abundant until the Phanerozoic.
此外，由于早期有机体可能很小、很简单、又处于环境的微妙影响，一般假定的源于生物的太古代化石往往是模棱两可的。
Furthermore, as early organisms were probably small, simple, and subtle in their environmental impact, the biogenicity of putative Archaean fossils is often ambiguous.
继太古代胶东群形成之后的胶东事件，在胶东群中造成了第一期的南北向构造和同构造麻粒岩相高级区域变质。
The Jiaodong event, which took place after formation of the Archaean Jiaodong Group, caused the first phase of N-S structures and syntectonic granulite facies metamorphism.
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 Precambrian intrusive rocks in western Shandong area mainly fall into two parts: the Taishanian (Archean) and the Aolaishanian (early Proterozoic) intrusive rocks.
龙泉关韧性剪切带的变形特征反映了五台山晚太古代碰撞造山带的构造演化。
The deformation characteristics of Longquanguan DSZ reflect the tectonic evolution of the late Archaean collision orogenic belt in Wutaishan area.
冀东迁西洒河桥是太古代麻粒岩相变质岩系广泛出露的地区。
Archaean era granulite facies metamorphite series are extensively outcropped in Sa - heqiao, Hebei 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。
An obvious mass-independent sulfur isotope fractionation was first observed in Archean stratiform sulfides from Xintai area, Shandong Province.
含铁橄榄石石英正长岩，代表了岩浆分离结晶初期还原条件下，太古代母岩派生的初始岩浆组成。
Fayalite-bearing quartz syenite could represent the early fractional stage initial granitic magma derived from archean protolith in a deeper and reductive environment.
太古代至古生代山东主要受到了东西向构造体系的控制，形成了基底“地槽”和“地台”盖层。
From the Archaean to the Palaeozoic, Shandong was controlled predominantly by the E-W extending structural systems, and the basement geosynclines and platform sedimentary covers were formed.
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 Jinbeizhuang Archean metamorphic iron ore deposit is situated in where the north side of Yanshan settle-zone crosses Inner Mongolia Eath's Axis.
山东招远金矿集中区金矿床的围岩为新太古代胶东岩群变质岩和中生代花岗岩。
The wall rocks of gold deposits located in Zhaoyuan gold mineralization area were rooted in metamorphic rocks in Jiaodong rock group in Archaean era and granites in Mesozoic era.
如此低的硫酸盐浓度，表示太古代大气中的氧气极为稀薄。
Such low levels of sulfate indicate that the archean atmosphere was virtually devoid of oxygen.
鄂东北大别杂岩中的表壳岩系属于晚太古代层状变质岩系。
The supracrustal sequences in the dabie complex in northeastern hubei belongs to a late archean stratified metamorphic sequences.
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。
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.
大别山区晚太古代大别群变质岩系，经历了复杂的变形过程。
In the Dabieshan area, the late Archaean metamorphic rocks, here termed as the Dabie Group, are complexly deformed.
本文报道了该区东山古老岩石带古太古代闪长质片麻岩和细粒奥长花岗岩的SHRIMP测年结果和地球化学组成。
The SHRIMP age data and geochemical results of the Palaeoarchaean dioritic gneiss and fine-grained trondhjemite of the ancient Dongshan rock belt from the Anshan area are reported in this paper.
它们的基底由太古代至元古代早期的粒相和闪石相变质的片麻岩和结晶片岩组成。
Their basement is composed of Archean to early Proterozoic gneisses and crystalline schists metamorphosed at granulite and amphibolite facies.
鞍山地区中太古代铁架山花岗岩中存在多种类型的表壳岩包体。
There is a lot of supracrustal enclaves in the Mesoarchean Tiejiashan granite in the Anshan area, Liaoning Province.
孟家屯岩组为鲁西新太古代早期形成的一套表壳岩，代表性的岩石类型为石榴石英岩、黑云母石英片岩、斜长角闪岩等。
The Mengjiatun Formation complex is a suite of supracrustal rocks formed in the early Neoarchean, and its typical rocks include garnet quartzite, biotite-quartz schist and amphibolite.
早元古代的大气圈、水圈与晚太古代相似，仍为缺氧性质。
The early Proterozoic atmosphere and hydrosphere are similar to those of Archaeozoic in being still absent in oxygen.
该断裂成生于太古代中期，并开始对两侧的沉积与剥蚀起控制作用。
This fracture was formed at the middle of Archeozoic era, and then began to control the depositions and erosions of the both sides.
在胶北隆起南缘新太古代TTG质片麻岩中发育了大量的超铁镁质-铁镁质岩包体，呈NEE向群带状展布。
Lots of mafic - ultramafic enclaves are developed in Neoarchaean TTG gneisses in south of Jiaobei uplift with the trend of NEE.
康山金矿田位于华北地台南缘，花山—龙脖背斜南翼的马超营断裂带内，出露地层主要为太古宙太华群及中元古代熊耳群。
Kangshan gold field is situated in the southern margin of North China platform and within the Machaoying faulted zone which is located in the southern limb of Huashan Longbo anticline.
伏牛山东麓地区经历了长期而复杂的构造演化，从新太古代到中生代、新生代不断活动，奠定了该区的基本构造格架。
The tectonic evolution of the east foot of the Funiushan area has gone through long-term and complicated activities from Pt1 to Mz and Cz, it forms the basic tectonics of this area.
本区内的金矿断裂构造即花岗岩与太古代胶东群变质岩呈构造接触带。
The faults related to the gold deposits in the area often follow the contact between granites and metamorphic rocks of the Achaean Jiaodong Group.
本区内的金矿断裂构造即花岗岩与太古代胶东群变质岩呈构造接触带。
The faults related to the gold deposits in the area often follow the contact between granites and metamorphic rocks of the Achaean Jiaodong Group.
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