Hadean to Neoarchean episodic crustal growth: Detrital zircon records in Paleoproterozoic quartzites from the southern North China Craton
Hadean to Neoarchean episodic crustal growth: Detrital zircon records in Paleoproterozoic quartzites from the southern North China Craton
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冥宙至新太古代地壳幕式生长：华北克拉通南部古元古代石英岩中的碎屑锆石记录
DOI：
10.1016/j.precamres.2014.09.003
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发表时间：
2014-11
影响因子：
3.8
通讯作者：
Zhang, Juan
中科院分区：
文献类型：
--
作者：
Zhang, Guo-Wei;Santosh, M.;Yu, Hong;Zhang, Juan
华北地区多个地区出露的太古宙碎屑岩为研究太古宙-早太古代陆壳演化史提供了重要窗口。在这里，我们报告的结果，西姆斯锆石年代学和氧同位素，以及LA-ICPMS锆石Hf同位素分析的碎屑锆石从古元古代石英岩，以探讨在NCC南部的早期地壳演化。根据3.6Ga和2.2Ga的一致年龄以及3404 ± 30 Ma、2919 ± 31 Ma、2772 ± 9.5Ma、2698 ± 4.7Ma、2652 ± 6.7Ma、2772 ± 9.5Ma、27772 ± 9.5Ma、277.5Ma、2777 Ma、277.5Ma、2777.5Ma、277.5Ma、277 Ma、2532 ± 5.2Ma。始新世-古太古代锆石的Hf和氧同位素组成表明，NCC的超基性岩核形成于冥古宙（104.0 Ga），类似于地球仪上其他地方的古老古龙核的形成时间，如西澳大利亚州的Yilgarn古龙和加拿大的Slave古龙，（3.8Ga、3.6Ga和3.4Ga），标志着冥古宙地壳改造的第一阶段。我们的数据的突出方面是，中太古代早期新太古代（3.0-2.6 Ga，峰值在2.7 Ga）是一个重要的时期，地壳生长从地幔在整个NCC，与全球主要太古代地壳生长的事件。最新的新太古代（102.5 Ga）标志着一个重要的地壳改造，导致重新熔融的新形成的青年镁铁质地壳（102.7 Ga）的时期。与从TTG获得的数据相结合（英云闪长岩-奥长花岗岩-花岗闪长岩）和太古代花岗岩类岩石以及下地壳麻粒岩捕虏体表明，早太古代-古太古代、中太古代-新太古代的幕式地壳生长和地壳改造强烈破坏了古陆核，导致NCC的上地壳和下地壳中的冥古宙和始太古代遗迹几乎没有保存。太古代锆石的古元古代沉积之后，除了在随后的热事件铅的损失，有没有在Hf和氧同位素组成的重大改变。因此，我们的碎屑锆石数据提供了令人信服的证据，在太古代的地壳生长和改造的NCC。
The Archean terranes exposed in several regions of the North China Craton (NCC) provide important windows to evaluate the Hadean-Archean continental crustal evolution history. Here we report results from SIMS zircon geochronology and oxygen isotopes, as well as LA-ICPMS zircon Hf isotopic analyses on detrital zircons from Paleoproterozoic quartzites to probe the early crustal evolution in the southern NCC. Our data show episodic magmatism during the Eoarchean, Paleoarchean, Mesoarchean, Neoarchean and Paleoproterozoic as inferred from the concordant ages of 3.6 Ga and 2.2 Ga and the well-defined upper intercept ages of 3404 ± 30 Ma, 2919 ± 31 Ma, 2772 ± 9.5 Ma, 2698 ± 4.7 Ma, 2652 ± 6.7 Ma, and 2532 ± 5.2 Ma. The Hf and oxygen isotopic compositions of Eoarchean–Paleoarchean zircons demonstrate that the cratonic nucleus of the NCC was built in the Hadean (∼4.0 Ga), similar to the timing of formation of the nuclei of old cratons elsewhere on the globe such as the Yilgarn Craton, Western Australia, and the Slave Craton, Canada, with the Eoarchean–Paleoarchean (3.8 Ga, 3.6 Ga and 3.4 Ga) marking the first phase of crustal reworking of the Hadean crust. The salient aspect of our data is that the Meoarchean to early Neoarchean (3.0–2.6 Ga with a peak at 2.7 Ga) was a significant period for crustal growth from the mantle throughout the NCC, comparable with the event of major Archean crustal growth worldwide. The latest Neoarchean (∼2.5 Ga) marks a period of significant crustal reworking that led to remelting of the newly-formed juvenile mafic crust (∼2.7 Ga). Integration with the data obtained from the TTG (tonalite–trondhjemite–granodiorite) and granitoid rocks of the Archean terranes and the lower crustal granulite xenoliths from various parts of the NCC suggests that the episodic Eoarchean via Paleoarchean and Mesoarchean to Neoarchean crustal growth as well as crustal reworking intensely destroyed the ancient cratonic nucleus, resulting in the scarce preservation of the Hadean and Eoarchean remnants in both the upper and lower crust of the NCC. Following the Paleoproterozoic sedimentation of the Archean zircons, apart from Pb loss during the subsequent thermal events, there was no major alteration in the Hf and oxygen isotopic compositions. Thus, our detrital zircon data provide convincing evidence for the repeated crustal growth and reworking of the NCC in the Archean.
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影响因子：
3.8
作者：
Guochun Zhao;Peter A. Cawood;San-zhong Li;S. Wilde;M. Sun;Jian Zhang;Yanhong He;C. Yin
通讯作者：
Guochun Zhao;Peter A. Cawood;San-zhong Li;S. Wilde;M. Sun;Jian Zhang;Yanhong He;C. Yin
中亚造山带西部：增生造山作用和大陆生长的窗口
影响因子：
6.1
作者：
Wenjiao Xiao;M. Santosh
通讯作者：
M. Santosh
影响因子：
3.8
作者：
Wei Wang;Enxiu Yang;M. Zhai;Shijin Wang;M. Santosh;L. Du;H. Xie;Bin Lv;Y. Wan
通讯作者：
Wei Wang;Enxiu Yang;M. Zhai;Shijin Wang;M. Santosh;L. Du;H. Xie;Bin Lv;Y. Wan
影响因子：
6.1
作者：
Guochun Zhao;M. Zhai
通讯作者：
Guochun Zhao;M. Zhai
影响因子：
5
作者：
W. Peck;J. Valley;S. Wilde;C. Graham
通讯作者：
W. Peck;J. Valley;S. Wilde;C. Graham