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Article: Was the easternmost segment of the Central Asian Orogenic Belt derived from Gondwana or Siberia: An intriguing dilemma?

TitleWas the easternmost segment of the Central Asian Orogenic Belt derived from Gondwana or Siberia: An intriguing dilemma?
Authors
KeywordsCentral Asian Orogenic Belt
Gondwana
Khanka Massif
Late Pan-African
NE China
Russian Far East
SHRIMP U-Pb dating of detrital zircon
Issue Date2010
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jog
Citation
Journal Of Geodynamics, 2010, v. 50 n. 3-4, p. 300-317 How to Cite?
AbstractThe Khanka Massif forms the easternmost segment of the Central Asian Orogenic Belt (CAOB) in NE China and its tectonic setting is highly controversial. Metasedimentary rocks from the Hulin Complex and the Mt. Huoshi sequence were selected to address this issue. For the Hulin Complex, SHRIMP detrital zircon U-Pb dating of a two-mica schist (sample HL-011) reveals a unimodal population with a weighted mean 206Pb/238U age of 257±3Ma, suggesting local derivation from nearby Permian granitoids. In contrast, a quartz schist (sample 04H-138) contains five zircon populations with ages of 233-270Ma, 350-400Ma, 473-570Ma, 720-760Ma and 930-970Ma, and peaks at 252, 350, 520, 758 and 970Ma, indicating a much more diverse provenance. Two samples of fine-grained gneiss were selected from Mt Houshi, with sample 06H-15 containing four zircon populations, with groupings at 260-340Ma, 470-560Ma, 710-940Ma and a single grain at 2090Ma, whereas zircons in sample 06H-16 define two populations with ages of 727-854Ma, with a peak at 776Ma, and a single grain with an age of 404±13Ma. The youngest detrital zircon was obtained from sample 04H-138 and has a 206Pb/238U age of 233±9Ma, limiting deposition of the Hulin Complex to after ∼233Ma. The late Pan-African and Paleoproterozoic to Neoproterozoic ages, together with the ∼500Ma age for granulite facies metamorphism previously determined for the Hutou Complex in the Khanka Massif, indicate that the Khanka and Jiamusi massifs (together with the Bureya Massif in Russia) formed a contiguous crustal unit. Detrital zircon data suggest that this combined block was not part of either the North China or the South China cratons. Instead, it was either derived from a peri-Gondwana position, a rifted portion of the Songliao Massif in the CAOB, an exotic block of unknown affinity, or from the Siberia Craton. We evaluate the possibility that the Khanka/Jiamusi/Bureya block may have originated in Siberia and once formed part of the Sayan-Baikal orogen at ∼500Ma. Whatever its origin, the block drifted westward to collide with the Songliao Massif of NE China in the latest Triassic-Early Jurassic as a result of the onset of Pacific-plate subduction. It thus forms part of the evolving supercontinent of Eurasia. © 2010 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/123866
ISSN
2015 Impact Factor: 1.926
2015 SCImago Journal Rankings: 1.362
ISI Accession Number ID
Funding AgencyGrant Number
National Natural Science Foundation of China40872121
40672148
40739905
Ministry of Science and Technology of the P.R. China2009CB825008
Ph.D. Programs Foundation of the Ministry of Education of China20090061110048
Funding Information:

This study was funded by grants from the National Natural Science Foundation of China (40872121, 40672148 and 40739905), the Ministry of Science and Technology of the P.R. China (2009CB825008), and the Ph.D. Programs Foundation of the Ministry of Education of China (20090061110048). We thank Professor Santosh (Guest Editor) and the Reviewers (Alfred Kroner and 'anonymous') for their comments that helped to improve the manuscript. This is The Institute for Geoscience Research (TIGeR) publication No. 216.

References

 

DC FieldValueLanguage
dc.contributor.authorZhou, JBen_HK
dc.contributor.authorWilde, SAen_HK
dc.contributor.authorZhao, GCen_HK
dc.contributor.authorZhang, XZen_HK
dc.contributor.authorWang, Hen_HK
dc.contributor.authorZeng, WSen_HK
dc.date.accessioned2010-10-06T06:55:54Z-
dc.date.available2010-10-06T06:55:54Z-
dc.date.issued2010en_HK
dc.identifier.citationJournal Of Geodynamics, 2010, v. 50 n. 3-4, p. 300-317en_HK
dc.identifier.issn0264-3707en_HK
dc.identifier.urihttp://hdl.handle.net/10722/123866-
dc.description.abstractThe Khanka Massif forms the easternmost segment of the Central Asian Orogenic Belt (CAOB) in NE China and its tectonic setting is highly controversial. Metasedimentary rocks from the Hulin Complex and the Mt. Huoshi sequence were selected to address this issue. For the Hulin Complex, SHRIMP detrital zircon U-Pb dating of a two-mica schist (sample HL-011) reveals a unimodal population with a weighted mean 206Pb/238U age of 257±3Ma, suggesting local derivation from nearby Permian granitoids. In contrast, a quartz schist (sample 04H-138) contains five zircon populations with ages of 233-270Ma, 350-400Ma, 473-570Ma, 720-760Ma and 930-970Ma, and peaks at 252, 350, 520, 758 and 970Ma, indicating a much more diverse provenance. Two samples of fine-grained gneiss were selected from Mt Houshi, with sample 06H-15 containing four zircon populations, with groupings at 260-340Ma, 470-560Ma, 710-940Ma and a single grain at 2090Ma, whereas zircons in sample 06H-16 define two populations with ages of 727-854Ma, with a peak at 776Ma, and a single grain with an age of 404±13Ma. The youngest detrital zircon was obtained from sample 04H-138 and has a 206Pb/238U age of 233±9Ma, limiting deposition of the Hulin Complex to after ∼233Ma. The late Pan-African and Paleoproterozoic to Neoproterozoic ages, together with the ∼500Ma age for granulite facies metamorphism previously determined for the Hutou Complex in the Khanka Massif, indicate that the Khanka and Jiamusi massifs (together with the Bureya Massif in Russia) formed a contiguous crustal unit. Detrital zircon data suggest that this combined block was not part of either the North China or the South China cratons. Instead, it was either derived from a peri-Gondwana position, a rifted portion of the Songliao Massif in the CAOB, an exotic block of unknown affinity, or from the Siberia Craton. We evaluate the possibility that the Khanka/Jiamusi/Bureya block may have originated in Siberia and once formed part of the Sayan-Baikal orogen at ∼500Ma. Whatever its origin, the block drifted westward to collide with the Songliao Massif of NE China in the latest Triassic-Early Jurassic as a result of the onset of Pacific-plate subduction. It thus forms part of the evolving supercontinent of Eurasia. © 2010 Elsevier Ltd.en_HK
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jogen_HK
dc.relation.ispartofJournal of Geodynamicsen_HK
dc.subjectCentral Asian Orogenic Belten_HK
dc.subjectGondwanaen_HK
dc.subjectKhanka Massifen_HK
dc.subjectLate Pan-Africanen_HK
dc.subjectNE Chinaen_HK
dc.subjectRussian Far Easten_HK
dc.subjectSHRIMP U-Pb dating of detrital zirconen_HK
dc.titleWas the easternmost segment of the Central Asian Orogenic Belt derived from Gondwana or Siberia: An intriguing dilemma?en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0264-3707&volume=50&issue=3-4&spage=300&epage=317&date=2010&atitle=Was+the+easternmost+segment+of+the+Central+Asian+Orogenic+Belt+derived+from+Gondwana+or+Siberia:+an+intriguing+dilemma?-
dc.identifier.emailZhao, GC:gzhao@hkucc.hku.hken_HK
dc.identifier.authorityZhao, GC=rp00842en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jog.2010.02.004en_HK
dc.identifier.scopuseid_2-s2.0-77954657819en_HK
dc.identifier.hkuros175408-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77954657819&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume50en_HK
dc.identifier.issue3-4en_HK
dc.identifier.spage300en_HK
dc.identifier.epage317en_HK
dc.identifier.isiWOS:000280927600013-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridZhou, JB=35387284500en_HK
dc.identifier.scopusauthoridWilde, SA=35254758600en_HK
dc.identifier.scopusauthoridZhao, GC=7403296321en_HK
dc.identifier.scopusauthoridZhang, XZ=35075584500en_HK
dc.identifier.scopusauthoridWang, H=25947897600en_HK
dc.identifier.scopusauthoridZeng, WS=35387152200en_HK
dc.identifier.citeulike6862569-

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