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Archean

美 [ɑrˈkiən]英 [ɑ:ˈkiən]
  • adj.太古界的；太古代的
  • n.太古界
  • 网络太古宙；太古元；太古宇

ArcheanArchean
英-汉英-英网络释义

Archean

太古宙

太古宙(Archean)是地质年代中的一个宙，开始于同位素年龄3800百万年(Ma)，结束于2500Ma。 太古宙属于前寒武纪，上一个 …

太古代的

“火山爆发”用英文怎么说_英语网 ... aluminum [化]铝 Archean [地质]太古代的 archeology 考古学 ...

太古元

...希腊文则是地狱之意；三十九亿年前到二十五亿年前叫「太古元」（Archean）这时地壳已开始冷却有地壳变动,到处火山喷发…

太古宇

太古界

6. 1988年预测，太古界（Archean）大气层中化学

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Dial back the clock nearly 4 billion years, to a time called the Archean, and the sun would appear about 30% dimmer than it is now.
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The main parent rock of the early Yanchang Formation is complex metamorphic rock of Archean and metavolcanic rock-sedimentary rock system.
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The Houshiding Archean repeated fold within the Fuping domal composite fold group is located in the "hook" of a "hook-like" fold.
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Therefore , Mount Wutai is key evidence for studies of the Archean plate tectonics and the collision orogenic belts.
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Such low levels of sulfate indicate that the Archean atmosphere was virtually devoid of oxygen.
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As Archean not yet under construction and is still said, in the Pacific community.
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Ore field lies in the greenstone belt of Archean, and it has the Xiao He fracture of south and Tai Yao fracture of north as its boundary.
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The neo- Archean rocks also exist in Altun forelands, South Tianshan area, and Weiya area of Central Tianshan.
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The gold content of the Archean Taihua Group greenstone belt is lower than Clarke value.
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The neo- Archean rocks possibly exist in Tieklik metamorphic rocks.
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The geologic, geochemical characteristics of the Archean metamorphic plutonic intrusive of the Helong area, Jilin province
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Demarcating Interval between Archean Group and Proterozoic Group and Ore-Forming Dynamical Transformation
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BIF ages range from early Archean to Devonian, but it is most abundant in late Archean and early Proterozoic sequences BIF
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