Phase Equilibria Constraints on Models of Subduction Zone Magmatism

Geochemistry of the late Holocene rocks from the Tolbachik volcanic field, Kamchatka: Quantitative modelling of subduction-related open magmatic systems

“…6 Churikova et al, 2001;Dosetto et al, 2003), even though fractional crystallization is widely accepted for the origin of most HAB in Kamchatka (Ariskin et al, 1995;Kersting and Arculus, 1994;Ozerov, 2000;Volynets, 1994) and worldwide (Meyers and Johnston, 1996). In 2012-2013 the latest Tolbachik eruption produced more evolved lavas (high-K basaltic trachyandesites) compared to all previously reported compositions from the Tolbachik area (Volynets et al, 2013;2015), re-awakening interest in the genetic relationships within the entire Tolbachik rocks series.…”

Field relation, geochemistry and origin of the Xinglonggou volcanic rocks in Beipiao area, Liaoning Province (China): Reappraisal on the foundering of lower continental crust of North China Craton

“…Experimental petrology studies indicate that the HSA melt can be generated by fluid-present or vapor-absent (dehydration) melting of mafic source (Sen and Dunn, 1994;Rapp and Watson, 1995;Prouteau et al, 1999). Experimental studies also indicate that hydrous melting of mafic source favor to generate Na-rich intermediate/felsic rocks (Myers and Johnson, 1996;Prouteau et al, 1999;Patino Douce, 1999). There is a clear link between H 2 O and trace element enrichment pattern of the mantle-derived magma, i.e.…”

Insight into volcanic garnet: origin and significance of garnet as exemplified by a detailed petro-mineralogical study of the Breziny andesite (Central Slovakia Volcanic Field, Western Carpathians, Central Europe)

“…Whatever the real nature of this core, petrological reasoning alone leads to the conclusion that the primary felsic garnet-bearing melt may actually be generated from a noritic protolith. Minerals at the liquidus of a primary liquid indeed set limits on the mineralogy of the residue left in the source after extraction [Myers and Johnston 1996]. For instance, compositions of the early-crystallised, near-liquidus phenocrysts in Stype volcanic rocks have been shown to likely mimic the compositions of their residual and peritectic counterparts [Clemens and Wall 1981].…”