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首页> 外文期刊>Lithos: An International Journal of Mineralogy, Petrology, and Geochemistry >Deciphering the Mesoarchean to Neoarchean history of crustal growth and recycling in the Caochang region of the Eastern Hebei Province, North China Craton using combined zircon U-Pb and Lu-Hf isotope analysis
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Deciphering the Mesoarchean to Neoarchean history of crustal growth and recycling in the Caochang region of the Eastern Hebei Province, North China Craton using combined zircon U-Pb and Lu-Hf isotope analysis

机译：在河北省东部河北省东部地区曹昌地区的地壳增长和回收中，利用组合锆石U-PB和Lu-HF同位素分析将苏观成长和回收的新核历史上。

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摘要

In Archean cratons, the end of the Archean aeon (3.0-2.5 Ga) is marked by a considerable diversification in both the nature and petrogenesis of granitoid rocks. We reported the studies of a series of Mesoarchean-Neoarchean diorite and tonalite-trondhjemite-granodiorite (TM) and granitic gneisses in the Caochang area, Eastern Hebei region of the North China Craton. Combined zircon U-Pb and Lu-Hf isotope analyses and CL imaging analysis reveal three major magmatic events (3.2-3.0 Ga, 2.9-2.8 Ga,similar to 2.5 Ga) and one major metamorphic overprint (similar to 2.5 Ga). The close temporal relationship for different zircon domains reveals that the late-Neoarchean crustal materials were recycled or reworked immediately after their formation, immediately followed by similar to 2.5 Ga recrystallized metamorphism.
机译：在Archean Cratons中，Archean AEON（3.0-2.5 GA）的结尾标志着花岗岩岩石的性质和纤维化的相当多样化。 我们报道了一系列中料理 - 新山脉和铜矿 - Trondhjemite-Granodiorite（TM）和曹港地区的曹昌地区的花岗片，北方克拉顿省东部地区。 组合锆石U-Pb和Lu-HF同位素分析和CL成像分析显示了三个主要的岩浆事件（3.2-3.0Ga，2.9-2.8 Ga，类似于2.5 Ga）和一个主要的变质套印（类似于2.5 Ga）。 不同锆石结构域的紧密时间关系显示，在其形成之后立即再循环或重新加工后期新的地壳材料，紧接着与2.5Ga再结晶的变质相似。

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