Vestiges of a continental margin ophiolite type in the Novo Oriente region, Borborema Province, NE Brazil

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• 作者：Joã ; o Paulo Araú ; jo Pitombeira^a ; ^{joao_pauloap@hotmail.com} ; Wagner da Silva Amaral^a ; Evilarde Carvalho Uchô ; a Filho^b ; Reinhardt Adolfo Fuck^c ; Elton Luiz Dantas^c ; Cló ; vis Vaz Parente^d ; Felipe Grandjean da Costa^b ; Cé ; sar Ulisses Vieira Verí ; ssimo^d
• 关键词：Novo oriente ; Metaultramafic rocks ; Metamafic rocks ; Geochemistry ; CM Ophiolite type
• 刊名：Journal of South American Earth Sciences
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：73
• 期：Complete
• 页码：78-99
• 全文大小：9711 K
• 卷排序：73

文摘

The metaultramafic rocks correspond to serpentinites generated from exhumed sub-continental peridotites hydrated during OCT rifting. The metamafic rocks consist of basic rocks of basaltic and tholeiitic affinity with signatures between E- and N-MORB. These rocks were dismembered by the Brasiliano/Pan-African Orogeny and preserved as part of a CM type ophiolite.