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Article: Tectonic background of the Kuda ophiolite, western Kunlun: new constraints from boninite series rocks

TitleTectonic background of the Kuda ophiolite, western Kunlun: new constraints from boninite series rocks
西昆仑库地蛇绿岩的构造背景：来自玻安岩系岩石的新证据
Authors
Yuan, CSun, MLi, JHou, QZhou, MF
Keywords玻安岩系 (Boninite series rocks)
构造背景 (Tectonic background)
依莎克群 (Küda ophiolite)
西昆仑 (West Kunlun)
Issue Date2002
PublisherKe xue chu ban she.
Citation
Geochimica, 2002, v. 31 n. 1, p. 43-48 How to Cite?
地球化学, 2002, 第31卷 第1期, pp. 43-48 How to Cite?
AbstractPreliminary geochemical study is conducted for the Yishake volcanic sequence of Küda ophiolote, West Kunlun, and boninite series rocks are just recognized for the first time in this area. The boninite series rocks are characterized by relatively high SiO2 and Cr, high Al2O3/TiO2 ratios and being very depleted in TiO2, Y and REE. They all exhibit LREE enriched patterns and show low Ti/Zr and high Zr/Y ratios. Some of these samples possess relatively high Nb and Ta contents equivalent to those of MORB and accordingly low …
通过对依莎克群火山岩的地球化学研究，首次在西昆仑库地蛇绿岩中发现了玻安岩系岩石。这些岩石具有高SiO2、低TiO2、高Al2O3/TiO2 比值和高Cr 含量，亏损Y 和REE，呈现轻稀土富集的分布模式以及相对低的Ti/Zr 比值和高的Zr/Y 比值。其中一些样品还具有相当于MORB 的Nb、Ta 含量和相应较小的La/Nb 比值，表明在其形成过程中可能有富集地幔端员的介入。玻安岩系岩石的发现以及火山地层序列的岩性变化表明，依莎克群火山岩形成于初始的大洋岛弧或弧后盆地拉张的早期阶段，火山岩的地球化学组成变化以及玻安岩在依莎克群火山序列中的位置表明，原特提斯的消减方向应当是向北的。
Persistent Identifierhttp://hdl.handle.net/10722/72918
ISSN
0379-1726

 

DC FieldValueLanguage
dc.contributor.authorYuan, Cen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorLi, Jen_HK
dc.contributor.authorHou, Qen_HK
dc.contributor.authorZhou, MFen_HK
dc.date.accessioned2010-09-06T06:46:20Z-
dc.date.available2010-09-06T06:46:20Z-
dc.date.issued2002en_HK
dc.identifier.citationGeochimica, 2002, v. 31 n. 1, p. 43-48en_HK
dc.identifier.citation地球化学, 2002, 第31卷 第1期, pp. 43-48-
dc.identifier.issn0379-1726en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72918-
dc.description.abstractPreliminary geochemical study is conducted for the Yishake volcanic sequence of Küda ophiolote, West Kunlun, and boninite series rocks are just recognized for the first time in this area. The boninite series rocks are characterized by relatively high SiO2 and Cr, high Al2O3/TiO2 ratios and being very depleted in TiO2, Y and REE. They all exhibit LREE enriched patterns and show low Ti/Zr and high Zr/Y ratios. Some of these samples possess relatively high Nb and Ta contents equivalent to those of MORB and accordingly low …-
dc.description.abstract通过对依莎克群火山岩的地球化学研究，首次在西昆仑库地蛇绿岩中发现了玻安岩系岩石。这些岩石具有高SiO2、低TiO2、高Al2O3/TiO2 比值和高Cr 含量，亏损Y 和REE，呈现轻稀土富集的分布模式以及相对低的Ti/Zr 比值和高的Zr/Y 比值。其中一些样品还具有相当于MORB 的Nb、Ta 含量和相应较小的La/Nb 比值，表明在其形成过程中可能有富集地幔端员的介入。玻安岩系岩石的发现以及火山地层序列的岩性变化表明，依莎克群火山岩形成于初始的大洋岛弧或弧后盆地拉张的早期阶段，火山岩的地球化学组成变化以及玻安岩在依莎克群火山序列中的位置表明，原特提斯的消减方向应当是向北的。-
dc.languagechien_HK
dc.publisherKe xue chu ban she.en_HK
dc.relation.ispartofGeochimicaen_HK
dc.subject玻安岩系 (Boninite series rocks)-
dc.subject构造背景 (Tectonic background)-
dc.subject依莎克群 (Küda ophiolite)-
dc.subject西昆仑 (West Kunlun)-
dc.titleTectonic background of the Kuda ophiolite, western Kunlun: new constraints from boninite series rocksen_HK
dc.title西昆仑库地蛇绿岩的构造背景：来自玻安岩系岩石的新证据-
dc.typeArticleen_HK
dc.identifier.emailSun, M: minsun@hku.hken_HK
dc.identifier.emailZhou, MF: mfzhou@hkucc.hku.hken_HK
dc.identifier.authoritySun, M=rp00780en_HK
dc.identifier.authorityZhou, MF=rp00844en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.hkuros72240en_HK
dc.identifier.volume31-
dc.identifier.issue1-
dc.identifier.spage43-
dc.identifier.epage48-
dc.publisher.placeChina-
dc.identifier.issnl0379-1726-

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