Diversity in early crustal evolution: 4100 Ma zircons in the Cathaysia Block of southern China

doi:10.1038/srep05143

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质调查局南京地质调查中心

	Diversity in early crustal evolution: 4100 Ma zircons in the Cathaysia Block of southern China
	Xing, Guang-Fu 5; Wang, Xiao-Lei ; Wan, Yusheng 3; Chen, Zhi-Hong ; Jiang, Yang ; Kitajima, Kouki 2; Ushikubo, Takayuki 2; Gopon, Phillip 2
刊名	SCIENTIFIC REPORTS
	2014
卷号	4 页码:-
ISSN号	2045-2322
DOI	10.1038/srep05143
英文摘要	Zircons are crucial to understanding the first 500 Myr of crustal evolution of Earth. Very few zircons of this age (> 4050 Ma) have been found other than from a similar to 300 km diameter domain of the Yilgarn Craton, Western Australia. Here we report SIMS U-Pb and O isotope ratios and trace element analyses for two,4100 Ma detrital zircons from a Paleozoic quartzite at the Longquan area of the Cathaysia Block. One zircon (Pb-207/Pb-206 age of 4127 +/- 4 Ma) shows normal oscillatory zonation and constant oxygen isotope ratios (delta O-18=5.8 to 6.0%). The other zircon grain has similar to 4100 Ma magmatic core surrounded by a similar to 4070 Ma metamorphic mantle. The magmatic core has elevated delta O-18 (7.2 +/- 0.2%), high titanium concentration (53 +/- 3.4 ppm) and a positive cerium anomaly, yielding anomalously high calculated oxygen fugacity (FMQ + 5) and a high crystallization temperature (910 degrees C). These results are unique among Hadean zircons and suggest a granitoid source generated from dry remelting of partly oxidizing supracrustal sediments altered by surface waters. The similar to 4100 Ma dry melting and subsequent similar to 4070 Ma metamorphism provide new evidence for the diversity of the Earth's earliest crust.
学科主题	构造地质学
WOS关键词	U-PB GEOCHRONOLOGY ; DETRITAL ZIRCONS ; CONTINENTAL-CRUST ; WESTERN-AUSTRALIA ; HADEAN ZIRCONS ; JACK HILLS ; TERRESTRIAL CRUST ; OXIDATION-STATE ; OXYGEN ISOTOPES ; MAGMATIC ZIRCON
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000336655300001
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40319]
专题	中国地质调查局南京地质调查中心
作者单位	1.China Geol Survey, Nanjing Inst Geol & Mineral Resources, Nanjing 210016, Jiangsu, Peoples R China 2.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210093, Jiangsu, Peoples R China 3.Univ Wisconsin, Dept Geosci, WiscSIMS, Madison, WI 53706 USA 4.Chinese Acad Geol Sci, Inst Geol, Beijing SHRIMP Ctr, Beijing 100037, Peoples R China 5.中国地质调查局南京地质调查中心
推荐引用方式 GB/T 7714	Xing, Guang-Fu,Wang, Xiao-Lei,Wan, Yusheng,et al. Diversity in early crustal evolution: 4100 Ma zircons in the Cathaysia Block of southern China[J]. SCIENTIFIC REPORTS,2014,4:-.
APA	Xing, Guang-Fu.,Wang, Xiao-Lei.,Wan, Yusheng.,Chen, Zhi-Hong.,Jiang, Yang.,...&Gopon, Phillip.(2014).Diversity in early crustal evolution: 4100 Ma zircons in the Cathaysia Block of southern China.SCIENTIFIC REPORTS,4,-.
MLA	Xing, Guang-Fu,et al."Diversity in early crustal evolution: 4100 Ma zircons in the Cathaysia Block of southern China".SCIENTIFIC REPORTS 4(2014):-.