Cadomian magmatism and metamorphism at the Ossa Morena/Central Iberian zone boundary, Iberian Massif, Central Portugal: Geochemistry and P-T constraints of the Sardoal Complex

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• 作者：S.B.A. Henriques^a ; ^{sbahgeo@gmail.com} ; A.M.R. Neiva^b ; ^{neiva@dct.uc.pt} ; L. Tajčmanová ; ^c ; ^{lucataj@gmail.com} ; G.R. Dunning^d ; ^{gdunning@mun.ca}
• 关键词：North Gondwana ; Continental arc ; Geochemistry ; Petrogenesis ; Oxygen isotopes
• 刊名：Lithos
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：268-271
• 期：Complete
• 页码：131-148
• 全文大小：3327 K
• 卷排序：268

文摘

A continental arc (ca. 692–540 Ma) generated magmas of acid and basic composition. Metasedimentary and meta-igneous crustal sources for the magmas of acid composition. Depleted and enriched mantle sources generated magmas of basic composition. MP-HT conditions characterize the final stage of Cadomian metamorphism (ca. 540 Ma). The Sardoal Complex corresponds to a deeper level of the exhumed Cadomian basement.