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Article: Detrital zircon U-Pb geochronological and Lu-Hf isotopic constraints on the Precambrian magmatic and crustal evolution of the western Yangtze Block, SW China

TitleDetrital zircon U-Pb geochronological and Lu-Hf isotopic constraints on the Precambrian magmatic and crustal evolution of the western Yangtze Block, SW China
Authors
KeywordsCrustal evolution
Detrital zircon
Lu-Hf isotope
Neoproterozoic
U-Pb age
Yangtze Block
Issue Date2009
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamres
Citation
Precambrian Research, 2009, v. 172 n. 1-2, p. 99-126 How to Cite?
AbstractIn situ U-Pb geochronological and Lu-Hf isotopic studies of detrital zircon from a variety of Precambrian strata along the western margin of the Yangtze Block of South China show that the rocks have maximum depositional ages of ca. 1000-740 Ma. All of the strata probably formed in a subduction-related tectonic setting. The Kunyang Group (Heishantou Formation) and Huili Group (Tongan Formation) have maximum depositional ages of 960-1000 Ma and contain zircons whose ages are dominantly Paleoproterozoic (∼2500-2300, 1900-1700 and 1650-1500 Ma). The Yanbian Group has a zircon population ranging mainly from 860 to 1000 Ma, different from that of the Bikou Group with ages from 745 to 890 Ma. Ages of zircons from the Lieguliu and Guanyinya Formations range from 740 to 900 Ma. The Paleoproterozoic detrital zircons commonly have negative or slightly positive ε Hf values from -8.0 to +2.3, whereas most of the 1000-740 Ma zircons have moderately to significantly high positive ε Hf values from +0.3 to +13.0. The new detrital zircon U-Pb and Lu-Hf isotopic dataset suggests four major episodes of magmatism in the region (∼2500-2300, 1900-1700, 1650-1500 and 1000-740 Ma) and the presence of widespread Archean basement of the western Yangtze Block. The data also suggest an important period of juvenile magmatism at 1000-740 Ma. Our results favor a model in which continuous subduction (1000-740 Ma) along the western margin of the Yangtze Block lasted for 260 million years. © 2009 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/72720
ISSN
2015 Impact Factor: 4.037
2015 SCImago Journal Rankings: 3.214
ISI Accession Number ID
Funding AgencyGrant Number
University of Hong Kong
Chinese Education Ministry 111 project1307011
Chinese Academy of Sciences
State Administration of Foreign Experts Affairs
Funding Information:

This work was supported by a matching grant of a 973 project from the University of Hong Kong, the Chinese Education Ministry 111 project (1307011), and the International Innovation Partnership Program of the Chinese Academy of Sciences and the State Administration of Foreign Experts Affairs. Jinhui Yang is thanked for reading an earlier draft. We thank Paul Robinson and an anonymous reviewer for their constructive comments.

References

 

DC FieldValueLanguage
dc.contributor.authorSun, Wen_HK
dc.contributor.authorZhou, MFen_HK
dc.contributor.authorGao, JFen_HK
dc.contributor.authorYang, YHen_HK
dc.contributor.authorZhao, Xen_HK
dc.contributor.authorZhao, Jen_HK
dc.date.accessioned2010-09-06T06:44:28Z-
dc.date.available2010-09-06T06:44:28Z-
dc.date.issued2009en_HK
dc.identifier.citationPrecambrian Research, 2009, v. 172 n. 1-2, p. 99-126en_HK
dc.identifier.issn0301-9268en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72720-
dc.description.abstractIn situ U-Pb geochronological and Lu-Hf isotopic studies of detrital zircon from a variety of Precambrian strata along the western margin of the Yangtze Block of South China show that the rocks have maximum depositional ages of ca. 1000-740 Ma. All of the strata probably formed in a subduction-related tectonic setting. The Kunyang Group (Heishantou Formation) and Huili Group (Tongan Formation) have maximum depositional ages of 960-1000 Ma and contain zircons whose ages are dominantly Paleoproterozoic (∼2500-2300, 1900-1700 and 1650-1500 Ma). The Yanbian Group has a zircon population ranging mainly from 860 to 1000 Ma, different from that of the Bikou Group with ages from 745 to 890 Ma. Ages of zircons from the Lieguliu and Guanyinya Formations range from 740 to 900 Ma. The Paleoproterozoic detrital zircons commonly have negative or slightly positive ε Hf values from -8.0 to +2.3, whereas most of the 1000-740 Ma zircons have moderately to significantly high positive ε Hf values from +0.3 to +13.0. The new detrital zircon U-Pb and Lu-Hf isotopic dataset suggests four major episodes of magmatism in the region (∼2500-2300, 1900-1700, 1650-1500 and 1000-740 Ma) and the presence of widespread Archean basement of the western Yangtze Block. The data also suggest an important period of juvenile magmatism at 1000-740 Ma. Our results favor a model in which continuous subduction (1000-740 Ma) along the western margin of the Yangtze Block lasted for 260 million years. © 2009 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/precamresen_HK
dc.relation.ispartofPrecambrian Researchen_HK
dc.rightsPrecambrian Research. Copyright © Elsevier BV.en_HK
dc.subjectCrustal evolutionen_HK
dc.subjectDetrital zirconen_HK
dc.subjectLu-Hf isotopeen_HK
dc.subjectNeoproterozoicen_HK
dc.subjectU-Pb ageen_HK
dc.subjectYangtze Blocken_HK
dc.titleDetrital zircon U-Pb geochronological and Lu-Hf isotopic constraints on the Precambrian magmatic and crustal evolution of the western Yangtze Block, SW Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0301-9268&volume=172&issue=1-2&spage=99&epage=126&date=2009&atitle=Detrital+zircon+U-Pb+geochronological+and+Lu-Hf+isotopic+constraints+on+the+Precambrian+magmatic+and+crustal+evolution+of+the+western+Yangtze+Block,+SW+Chinaen_HK
dc.identifier.emailSun, W: weihua@hkusua.hku.hken_HK
dc.identifier.emailZhou, MF: mfzhou@hkucc.hku.hk-
dc.identifier.emailZhao, X: xinfuzhao@gmail.com-
dc.identifier.emailZhao, J: jhzhao@hkusua.hku.hk-
dc.identifier.authorityZhou, MF=rp00844en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.precamres.2009.03.010en_HK
dc.identifier.scopuseid_2-s2.0-67349143739en_HK
dc.identifier.hkuros167327en_HK
dc.identifier.hkuros177718-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67349143739&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume172en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage99en_HK
dc.identifier.epage126en_HK
dc.identifier.isiWOS:000267148900006-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridSun, WH=7404011340en_HK
dc.identifier.scopusauthoridZhou, MF=7403506005en_HK
dc.identifier.scopusauthoridGao, JF=25638167000en_HK
dc.identifier.scopusauthoridYang, YH=14626834200en_HK
dc.identifier.scopusauthoridZhao, XF=49061648300en_HK
dc.identifier.scopusauthoridZhao, JH=49061691300en_HK
dc.identifier.citeulike5263350-

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