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Petrography and geochemistry of the Devonian ultramafic lamprophyreat Sokli in the northeastern Baltic Shield (Finland)

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dc.contributor.authorLee, Jong Ik-
dc.contributor.authorLee, Mi Jung-
dc.contributor.authorKim, Yeadong-
dc.contributor.authorJ.Moutte-
dc.date.accessioned2018-03-20T14:06:12Z-
dc.date.available2018-03-20T14:06:12Z-
dc.date.issued2003-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/6661-
dc.description.abstractThe Sokli complex in the northeastern Baltic Shield (Finland) forms a part of the extensive Devonian Kola Alkaline Province. The complex contains ultramafic lamprophyres occurring as dikes of millimetric to metric thickness. The Sokli ultramafic lamprophyres have petrographical and geochemical affinities with aillikite. High concentrations of Cr and Ni with low Al2O3 content of the Sokli aillikites indicate a strongly depleted harzburgitic source. However, compared to the kimberlites, the lower Cr and Ni contents and mg-number with weaker HREE depletion of the Sokli aillilkites imply a smaller proportion of garnet in the source and thus suggest a shallower melting depth of the source. In order to account for high concentrations of all incompatible elements and LREEs, with high volatile content (especially CO2), an additional enriched material is thought to have been incorporated into the Sokli aillikite source. An anomalous enrichment of K in the Sokli aillikite, compared to nearby ultrapotassic rocks and world-wide ultramafic lamprophyres, indicate a presence of K-rich phase (probably phlogopite) in the source mantle.-
dc.languageEnglish-
dc.subjectGeology-
dc.titlePetrography and geochemistry of the Devonian ultramafic lamprophyreat Sokli in the northeastern Baltic Shield (Finland)-
dc.title.alternative북동 Baltic Shield (핀란드) Sokli 지역의 데본기 초염기성 lamprophyre의 암석학 및 지구화학-
dc.typeArticle-
dc.identifier.bibliographicCitationLee, Jong Ik, et al. 2003. "Petrography and geochemistry of the Devonian ultramafic lamprophyreat Sokli in the northeastern Baltic Shield (Finland)". <em>The Petrological Society Of Korea</em>, 12(4): 183.-
dc.citation.titleThe Petrological Society Of Korea-
dc.citation.volume12-
dc.citation.number4-
dc.citation.endPage183-
dc.description.articleClassificationKCI등재후보-
dc.description.jcrRateJCR 2001:0-
dc.identifier.localId2004-0103-
Appears in Collections  
2003-2005, Research on the Arctic Atmospheric Environments and Mineral Resources (03-05) / Kim, Yeadong
2004-2005, 북극권 콜라 반도 알칼리암-카보나타이트 복합체에 대한 성인 연구 (04-05) / 이미정
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