Geochemical modeling and Nd-Sr data links nephelinite-phonolite successions and xenoliths of Trindade Island (South Atlantic Ocean, Brazil)
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- 作者：E.M. Bongioloa ; ebongiolo@geologia.ufrj.br" class="auth_mail" title="E-mail the corresponding author ; G.L.C. Piresb ; M.C. Geraldesc ; A.C. Santosc ; R. Neumannd
- 关键词：Trindade Island ; Geochemical modeling ; Nephelinite ; Phonolite ; Xenoliths
- 刊名：Journal of Volcanology and Geothermal Research
- 出版年：2015
- 出版时间：15 November 2015
- 年：2015
- 卷：306
- 期：Complete
- 页码：58-73
- 全文大小：1606 K
文摘
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calculations of temperature and pressure for the crystallization of nephelinites, phonolites and cumulate xenoliths
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calculation of density and viscosity for original nephelinitic–phonolitic lavas
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modeling of fractional crystallization fractions (%) and residual liquids that led to ample variations in rock compositions
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the studied rocks are linked genetically on the basis of lithogeochemistry, geochemical modeling and Nd–Sr values