Archean

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英 [ɑ:ˈkiən]

美 [ɑrˈkiən]

是什么意思

adj.

太古代的；

英英释义

Archean[ ɑ:'ki:ən ]

n.the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life
同义词：Archean eonArchean aeonArcheozoicArchaeozoicArcheozoic eonArchaeozoic aeon
adj.used of the earliest known rocks
同义词：archaean

学习怎么用

双语例句

用作形容词(adj.)

On seeing the rocks for himself, Fedo, who had just spent a year mapping Archean rocks in Zimbabwe, became extremely skeptical.
另一方面，费多由于才刚在辛巴威花了一年时间测定太古代的岩石，现在他亲眼看见这里的岩石，立刻感到非常怀疑。

权威例句

Archean molecular fossils and the early rise of eukaryotes.
Calibration of Sulfate Levels in the Archean Ocean
Effect of steeper Archean geothermal gradient on geochemistry of subduction-zone magmas
Microfossils of the Early Archean Apex Chert: New Evidence of the Antiquity of Life
Archean crustal evolution in the northern Yilgarn Craton: U–Pb and Hf-isotope evidence from detrital zircons
Martin, H. Adakitic magmas: modern analogues of Archean granitoids. Lithos 46, 411−429
Archean blocks and their boundaries in the North China Craton: lithological, geochemical, structural and P – T path constraints an...
Mass-independent fractionation of sulfur isotopes in Archean sediments: strong evidence for an anoxic Archean atmosphere.
A model for Trondhjemite-Tonalite-Dacite Genesis and crustal growth via slab melting: Archean to modern comparisons
Geochemical fingerprinting of oceanic basalts with applications to ophiolite classification and the search for Archean oceanic crust

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