Article by Gualda et al. published in Journal of Petrology

TITLE: Rhyolite-MELTS: A modified calibration of MELTS optimized for silica-rich, fluid-bearing magmatic systems AUTHORS: Guilherme A. R. Gualda, Mark S. Ghiorso, Robin V. Lemons and Tamara L. Carley JOURNAL: Journal of Petrology DOI: 10.1093/petrology/egr080 ABSTRACT: Silicic magma systems are of great scientific interest and societal importance owing to their role in the evolution of the…

Posted by gualdaga on January 27, 2012 in News

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Article by Pamukcu et al. published in Journal of Petrology

TITLE: Crystallization stages of the Bishop Tuff magma body recorded in crystal textures in pumice clasts AUTHORS: Ayla S. Pamukcu, Guilherme A. R. Gualda and Alfred T. Anderson JOURNAL: Journal of Petrology DOI: 10.1093/petrology/egr072 ABSTRACT: The Bishop Tuff is a giant silicic ignimbrite erupted at 0·76 Ma in eastern California, USA. Five pumice clasts from the…

Posted by gualdaga on January 24, 2012 in News

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Article by Colombini et al. published in Mineralogy & Petrology

TITLE: Sphene and zircon in the Highland Range volcanic sequence (Miocene, southern Nevada, USA): Elemental partitioning, phase relations, and influence on evolution of silicic magma AUTHORS: Lindy L. Colombini, Calvin F. Miller, Guilherme A. R. Gualda, Joseph L. Wooden and Jonathan S. Miller JOURNAL: Mineralogy & Petrology DOI: 10.1007/s00710-011-0177-3 ABSTRACT: Sphene is prominent in Miocene…

Posted by gualdaga on October 6, 2011 in News

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Article by Vlach et al. published in J. South Am. Earth Sci.

TITLE: Crystallization ages of the A-type magmatism of the Graciosa Province (Southern Brazil): Constraints from zircon U-Pb (ID-TIMS) dating of coeval K-rich gabbro-dioritic rocks AUTHORS: Silvio R.F. Vlach, Oswaldo Siga Jr., Ossama M.M. Harara, Guilherme A.R. Gualda, Miguel A.S. Basei, Frederico C.J. Vilalva DOI: 10.1016/j.jsames.2011.03.017 ABSTRACT: Zircon U-Pb (ID-TIMS) ages for gabbro-dioritic rocks and for…

Posted by gualdaga on October 1, 2011 in News

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