Geochemistry and geochronology of the rapakivi granites and associated rocks in the midwest portion of the Serra da Providência composite batholith, SW of Amazonian craton, Rondônia, Brazil
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- 作者：Manoel Augusto Corrê ; a da Costaa ; manoel.costa@cprm.gov.br" class="auth_mail" title="E-mail the corresponding author ; Maria Zé ; lia Aguiar de Sousab ; Roberto Dall'Agnolc ; d ; Jaime E. Scandolarae ; Amarildo Salina Ruizb
- 关键词：Serra da Providê ; ncia composite batholith ; Geochemistry ; U&ndash ; Pb geochronology ; Rapakivi granites ; Rhyolites
- 刊名：Journal of South American Earth Sciences
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：69
- 期：Complete
- 页码：194-212
- 全文大小：10026 K
文摘
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Seven facies were mapped in the Serra da Providência batolith.
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Leucosyenogranites and rhyolites are new rock varieties described in the study area.
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Two distinctive groups of mafic rocks were recognized in the study area.
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Porphyritic rhyolites were formed in a precursor event.
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Leucosyenogranites are similar to the tin specialized granites of the region.