Rio Maria granodiorite and associated rocks of Ourilândia do Norte - Carajás province: Petrography, geochemistry and implications for sanukitoid petrogenesis
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- 作者：Maria Nattâ ; nia Sampaio dos Santosa ; b ; nattania@ufpa.br" class="auth_mail" title="E-mail the corresponding author ; Davis Carvalho Oliveiraa ; b ; davis@ufpa.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Sanukitoid ; Archean ; Granitoid ; Carajá ; s
- 刊名：Journal of South American Earth Sciences
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：72
- 期：Complete
- 页码：279-301
- 全文大小：11755 K
文摘
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In Ourilândia do Norte area are quartz-monzodiorites, tonalites and granodiorites, which have sanukitoid signature.
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Besides, enclaves and (quartz) diorites that show BADR signature.
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They are spatially and temporally associated and they were metasomatized by TTG-like melt and aqueous fluid, respectively.
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Such contemporaneous and different geochemistry signatures suggest that they were generated during an active subduction.
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