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Article: Sr, Nd Pb isotopic characteristics of granulite and pyroxenite xenoliths in Hannuoba basalts, Hebei Province, and their implications for geologic processes

TitleSr, Nd Pb isotopic characteristics of granulite and pyroxenite xenoliths in Hannuoba basalts, Hebei Province, and their implications for geologic processes
河北漢諾壩玄武巖中麻粒巖類和輝石巖類捕虜體Sr、Nd、Pb同位素特征及其地質意義
Authors
Keywords层离作用 (Delamination)
混合作用 (Mixing)
Sr 、Nd、Pb 同位素 (Sr, Nd and Pb isotopes)
麻粒岩捕虏体 (Granulite xenolith)
辉石岩捕虏体 (Pyroxenite xenolith)
Issue Date1998
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, 1998, v. 14 n. 2, p. 190-197 How to Cite?
岩石学报, 1998, 第14卷 第2期, pp. 190-197 How to Cite?
AbstractRb-Sr, Sm-Nd and Pb isotopic systematics are reported for granulite and pyroxenite xenoliths in Hannuoba basalts, Hebei Province. The isotopic characteristics of xenoliths suggest t hat they might have formed recently , although there is no strict constraint on the precise age. The decoupling of low Rb/Sr and high [87]Sr/[86]Sr ratios implies the multi-stage evolution history and strong mixing processes. There are close ties between granulite and pyroxenites with different mineral assemblages on the Sr-Nd, Pb-Sr and Pb-Nd correlation figures. The granulite is the common end-member o f the three kinds o f pyroxenite. Combined with the distribution of the xenoliths in space and their isotopic relationships, It is proposed that delamination can be well used to explain the ties.
系统研究了河北汉诺坝玄武岩中二辉麻粒岩和辉石岩捕虏体的Sr、Nd、Pb 同位素特征。虽然未确定捕虏体的形成时代, 但同位素特征显示它们可能为较近期( 中生代以来) 形成。低的Rb/Sr 与高 的[87]Sr/[86]Sr 比值的解耦表明捕虏体的形成经历了较强的混合作用。在二元同位素相关图上, 三类具不同矿物组成的辉石岩与二辉麻粒岩有密切关系, 即二辉麻粒岩投点位置是三类辉石岩的共同端点。综合考虑捕虏体的空间分布及其在Sr 、Nd、Pb 同位素协变图上的关系, 可以认为层离作用可较好地解释这些现象。
Persistent Identifierhttp://hdl.handle.net/10722/72760
ISSN
2015 Impact Factor: 1.234
2015 SCImago Journal Rankings: 0.892

 

DC FieldValueLanguage
dc.contributor.authorZhang, GHen_HK
dc.contributor.authorZhou, XHen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorChen, SHen_HK
dc.contributor.authorFeng, JLen_HK
dc.date.accessioned2010-09-06T06:44:51Z-
dc.date.available2010-09-06T06:44:51Z-
dc.date.issued1998en_HK
dc.identifier.citationActa Petrologica Sinica, 1998, v. 14 n. 2, p. 190-197en_HK
dc.identifier.citation岩石学报, 1998, 第14卷 第2期, pp. 190-197-
dc.identifier.issn1000-0569-
dc.identifier.urihttp://hdl.handle.net/10722/72760-
dc.description.abstractRb-Sr, Sm-Nd and Pb isotopic systematics are reported for granulite and pyroxenite xenoliths in Hannuoba basalts, Hebei Province. The isotopic characteristics of xenoliths suggest t hat they might have formed recently , although there is no strict constraint on the precise age. The decoupling of low Rb/Sr and high [87]Sr/[86]Sr ratios implies the multi-stage evolution history and strong mixing processes. There are close ties between granulite and pyroxenites with different mineral assemblages on the Sr-Nd, Pb-Sr and Pb-Nd correlation figures. The granulite is the common end-member o f the three kinds o f pyroxenite. Combined with the distribution of the xenoliths in space and their isotopic relationships, It is proposed that delamination can be well used to explain the ties.-
dc.description.abstract系统研究了河北汉诺坝玄武岩中二辉麻粒岩和辉石岩捕虏体的Sr、Nd、Pb 同位素特征。虽然未确定捕虏体的形成时代, 但同位素特征显示它们可能为较近期( 中生代以来) 形成。低的Rb/Sr 与高 的[87]Sr/[86]Sr 比值的解耦表明捕虏体的形成经历了较强的混合作用。在二元同位素相关图上, 三类具不同矿物组成的辉石岩与二辉麻粒岩有密切关系, 即二辉麻粒岩投点位置是三类辉石岩的共同端点。综合考虑捕虏体的空间分布及其在Sr 、Nd、Pb 同位素协变图上的关系, 可以认为层离作用可较好地解释这些现象。-
dc.languagechien_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.aspx-
dc.relation.ispartofActa Petrologica Sinicaen_HK
dc.relation.ispartof岩石学报-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subject层离作用 (Delamination)-
dc.subject混合作用 (Mixing)-
dc.subjectSr 、Nd、Pb 同位素 (Sr, Nd and Pb isotopes)-
dc.subject麻粒岩捕虏体 (Granulite xenolith)-
dc.subject辉石岩捕虏体 (Pyroxenite xenolith)-
dc.titleSr, Nd Pb isotopic characteristics of granulite and pyroxenite xenoliths in Hannuoba basalts, Hebei Province, and their implications for geologic processesen_HK
dc.title河北漢諾壩玄武巖中麻粒巖類和輝石巖類捕虜體Sr、Nd、Pb同位素特征及其地質意義-
dc.typeArticleen_HK
dc.identifier.emailSun, M: minsun@hku.hken_HK
dc.identifier.authoritySun, M=rp00780en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.hkuros34189en_HK
dc.identifier.volume14-
dc.identifier.issue2-
dc.identifier.spage190-
dc.identifier.epage197-
dc.publisher.placeChina-

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