File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Early Neoproterozoic (ca. 900 Ma) rift sedimentation and mafic magmatism in the North Lhasa Terrane, Tibet: Paleogeographic and tectonic implications

TitleEarly Neoproterozoic (ca. 900 Ma) rift sedimentation and mafic magmatism in the North Lhasa Terrane, Tibet: Paleogeographic and tectonic implications
Authors
KeywordsTibet
North Lhasa terrane
Detrital zircon dating
Petrogenesis
Rift
Issue Date2018
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/lithos
Citation
Lithos, 2018, v. 320-321, p. 403-415 How to Cite?
AbstractThe origin and evolution of the Precambrian North Lhasa Terrane in the central Tibetan Plateau remain enigmatic. Here we present U-Pb age and Hf isotopic data for detrital zircons from early Neoproterozoic quartzites in the North Lhasa Terrane, Tibet. An integrated petrological, geochronological, geochemical, and Sr-Nd-Hf isotopic study was also undertaken on amphibolites associated with the quartzites. The depositional age of the quartzites is constrained to be between ca. 931 Ma (youngest detrital igneous zircon core) and 869 Ma (oldest metamorphic zircon rim). The detrital zircons have a main age population from 1200 to 1000 Ma, and lack zircons with ages of 1000-900 Ma. Zircons from the amphibolites yield concordant ages of ca. 913-902 Ma, which are comparable to the depositional age of the quartzites. The amphibolites have N-MORB-like compositions and are characterized by high positive zircon epsilon(Hf)(t) (+7.2 to +14.0) and whole-rock epsilon(Nd)(t) (+5.5 to +6.0) values. Their compositions have been modified by crustal contamination. The formation of these quartzites and amphibolites was related to an early Neoproterozoic rift adjacent to the African side of the northern East African Orogen, followed by opening of part of the Mozambique Ocean. (C) 2018 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/274946
ISSN
2020 Impact Factor: 4.004
2015 SCImago Journal Rankings: 2.920
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHu, PY-
dc.contributor.authorZhao, QG-
dc.contributor.authorZhao, G-
dc.contributor.authorWang, J-
dc.contributor.authorTang, Y-
dc.contributor.authorWang, H-
dc.contributor.authorZhu, Z-
dc.contributor.authorWang, WSR-
dc.contributor.authorWu, H-
dc.date.accessioned2019-09-10T02:32:10Z-
dc.date.available2019-09-10T02:32:10Z-
dc.date.issued2018-
dc.identifier.citationLithos, 2018, v. 320-321, p. 403-415-
dc.identifier.issn0024-4937-
dc.identifier.urihttp://hdl.handle.net/10722/274946-
dc.description.abstractThe origin and evolution of the Precambrian North Lhasa Terrane in the central Tibetan Plateau remain enigmatic. Here we present U-Pb age and Hf isotopic data for detrital zircons from early Neoproterozoic quartzites in the North Lhasa Terrane, Tibet. An integrated petrological, geochronological, geochemical, and Sr-Nd-Hf isotopic study was also undertaken on amphibolites associated with the quartzites. The depositional age of the quartzites is constrained to be between ca. 931 Ma (youngest detrital igneous zircon core) and 869 Ma (oldest metamorphic zircon rim). The detrital zircons have a main age population from 1200 to 1000 Ma, and lack zircons with ages of 1000-900 Ma. Zircons from the amphibolites yield concordant ages of ca. 913-902 Ma, which are comparable to the depositional age of the quartzites. The amphibolites have N-MORB-like compositions and are characterized by high positive zircon epsilon(Hf)(t) (+7.2 to +14.0) and whole-rock epsilon(Nd)(t) (+5.5 to +6.0) values. Their compositions have been modified by crustal contamination. The formation of these quartzites and amphibolites was related to an early Neoproterozoic rift adjacent to the African side of the northern East African Orogen, followed by opening of part of the Mozambique Ocean. (C) 2018 Elsevier B.V. All rights reserved.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/lithos-
dc.relation.ispartofLithos-
dc.subjectTibet-
dc.subjectNorth Lhasa terrane-
dc.subjectDetrital zircon dating-
dc.subjectPetrogenesis-
dc.subjectRift-
dc.titleEarly Neoproterozoic (ca. 900 Ma) rift sedimentation and mafic magmatism in the North Lhasa Terrane, Tibet: Paleogeographic and tectonic implications-
dc.typeArticle-
dc.identifier.emailZhao, G: gzhao@hku.hk-
dc.identifier.authorityZhao, G=rp00842-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.lithos.2018.09.036-
dc.identifier.scopuseid_2-s2.0-85054449167-
dc.identifier.hkuros302934-
dc.identifier.volume320-321-
dc.identifier.spage403-
dc.identifier.epage415-
dc.identifier.isiWOS:000453111800027-
dc.publisher.placeNetherlands-
dc.identifier.issnl0024-4937-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats