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Article: The geochemical characteristics of fore-arc ophiolite from Dingqing area, Tibet

TitleThe geochemical characteristics of fore-arc ophiolite from Dingqing area, Tibet
Authors
KeywordsBoninite
Dingqing
Fore-arc setting
Geochemistry
Ophiolite
Tibet
Issue Date2002
PublisherChinese Academy of Sciences, Institute of Geology and Geophysics. The Journal's web site is located at http://www.ysxb.ac.cn/ysxb/ch/index.aspx
Citation
Acta Petrologica Sinica, 2002, v. 18 n. 3, p. 392-400 How to Cite?
AbstractDingqing ophiolite lies in the eastern part of Bagonghu-Dingqing-Nujiang ophiolite belt. Dingqing ophiolite is mainly composed of peridotite, accumulate, gabbro, diabase and plagioclase, and the peridotite in Dingqing ophiolite is the largest one in the scale in the whole belt. The radiolarian fossils in the silicalite overlying the ophiolite sequence is recognized as Norian of the early Jurassic and late Triassic age. The middle Jurassic sandstone and conglomerate unconformably cover the ophiolite. The Dingqing ophiolite therefore formed in the late Triassic-early Jurassic age and emplaced before middle Jurassic age. The Dingqing ophiolite belongs to boninite series, which is characteristic of enrichment in Si, Mg and LILE and depletion of HFSE (Ti, P, Zr, Y, Yb and Nb). The REE patterns of the accumulate, gabbro and diabase are all U-shape, implying that the Dingqing boninite is derived from depleted a mantle source with the mixture of slab-derived fluid. The geochemical characteristics of the Dingqing boninite are similar to those of Tertiary boninite in the western Pacific, but totally different from those of MORB, indicating that Dingqing boninite is formed in the fore-arc setting, and belongs to fore-arc ophiolite.
Persistent Identifierhttp://hdl.handle.net/10722/72814
ISSN
2015 Impact Factor: 1.234
2015 SCImago Journal Rankings: 0.892
References

 

DC FieldValueLanguage
dc.contributor.authorLiu, WBen_HK
dc.contributor.authorQian, Qen_HK
dc.contributor.authorYue, GLen_HK
dc.contributor.authorLi, QSen_HK
dc.contributor.authorZhang, Qen_HK
dc.contributor.authorZhou, MFen_HK
dc.date.accessioned2010-09-06T06:45:21Z-
dc.date.available2010-09-06T06:45:21Z-
dc.date.issued2002en_HK
dc.identifier.citationActa Petrologica Sinica, 2002, v. 18 n. 3, p. 392-400en_HK
dc.identifier.issn1000-0569en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72814-
dc.description.abstractDingqing ophiolite lies in the eastern part of Bagonghu-Dingqing-Nujiang ophiolite belt. Dingqing ophiolite is mainly composed of peridotite, accumulate, gabbro, diabase and plagioclase, and the peridotite in Dingqing ophiolite is the largest one in the scale in the whole belt. The radiolarian fossils in the silicalite overlying the ophiolite sequence is recognized as Norian of the early Jurassic and late Triassic age. The middle Jurassic sandstone and conglomerate unconformably cover the ophiolite. The Dingqing ophiolite therefore formed in the late Triassic-early Jurassic age and emplaced before middle Jurassic age. The Dingqing ophiolite belongs to boninite series, which is characteristic of enrichment in Si, Mg and LILE and depletion of HFSE (Ti, P, Zr, Y, Yb and Nb). The REE patterns of the accumulate, gabbro and diabase are all U-shape, implying that the Dingqing boninite is derived from depleted a mantle source with the mixture of slab-derived fluid. The geochemical characteristics of the Dingqing boninite are similar to those of Tertiary boninite in the western Pacific, but totally different from those of MORB, indicating that Dingqing boninite is formed in the fore-arc setting, and belongs to fore-arc ophiolite.en_HK
dc.languageengen_HK
dc.publisherChinese Academy of Sciences, Institute of Geology and Geophysics. The Journal's web site is located at http://www.ysxb.ac.cn/ysxb/ch/index.aspxen_HK
dc.relation.ispartofActa Petrologica Sinicaen_HK
dc.subjectBoniniteen_HK
dc.subjectDingqingen_HK
dc.subjectFore-arc settingen_HK
dc.subjectGeochemistryen_HK
dc.subjectOphioliteen_HK
dc.subjectTibeten_HK
dc.titleThe geochemical characteristics of fore-arc ophiolite from Dingqing area, Tibeten_HK
dc.typeArticleen_HK
dc.identifier.emailZhou, MF:mfzhou@hkucc.hku.hken_HK
dc.identifier.authorityZhou, MF=rp00844en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0036663897en_HK
dc.identifier.hkuros82673en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036663897&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume18en_HK
dc.identifier.issue3en_HK
dc.identifier.spage392en_HK
dc.identifier.epage400en_HK
dc.publisher.placeChinaen_HK
dc.identifier.scopusauthoridLiu, WB=7408474348en_HK
dc.identifier.scopusauthoridQian, Q=7102168564en_HK
dc.identifier.scopusauthoridYue, GL=7102707189en_HK
dc.identifier.scopusauthoridLi, QS=26650553400en_HK
dc.identifier.scopusauthoridZhang, Q=35515964300en_HK
dc.identifier.scopusauthoridZhou, MF=7403506005en_HK

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