Volatiles in High-K Magmas from the Western Trans-Mexican Volcanic Belt: Evidence for Fluid Fluxing and Extreme Enrichment of the Mantle Wedge by Subduction Processes

Vigouroux, N.; Wallace, Paul; Kent, Adam J.R.

doi:10.1093/petrology/egn039

Cited by 129 publications

(89 citation statements)

References 112 publications

(215 reference statements)

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“…In contrast, the low Cl/F (<1) found in some arc melt inclusions (e.g. Central and South American arcs, Kermadec, Wysoczanski et al 2006;Sadofsky et al 2008;Vigouroux et al 2008;Mount Shasta, Le Voyer et al 2010) cannot result from the mixing between a depleted source and an aqueous fluid. Instead, it was suggested that it was produced by mixing with a H 2 O-rich slab melt (e.g.…”

Section: Effect Of Melt Structure On F and CL Partition Coefficientsmentioning

confidence: 97%

“…Comparisons to F and Cl in arc melt inclusions Figure 5A reports F and Cl concentrations in melt inclusions from various volcanic arcs (grouped in arcs: TransMexican: Sadofsky et al 2008;Vigouroux et al 2008;Kamchatka: Churikova et al 2007;Portnyagin et al 2007; Kermadec: Wysoczanski et al 2006;Izu-Mariana: Straub and Layne 2003;Shaw et al 2012;Sunda: Elburg et al 2006;Aeolian: Rose-Koga et al 2012;Cascade: Le Voyer et al 2010;S. America: Le Voyer et al 2008;Vanuatu: Sorbadere et al 2011;Lesser Antilles: Bouvier et al 2008; and illustrates the variety of Cl/F ratios among arc magmas (between 0.25 and 10).…”

Section: Effect Of Melt Structure On F and CL Partition Coefficientsmentioning

confidence: 99%

“…Although the variations of degree of melting and crystallization are likely responsible for some of F and Cl variation within each group of arc melt inclusions, it is unlikely that crystallization is solely responsible for these variations. For instance, Le Voyer et al (2010) (Straub and Layne 2003;Elburg et al 2006;Wysoczanski et al 2006;Churikova et al 2007;Portnyagin et al 2007;Sadofsky et al 2008;Vigouroux et al 2008;Bouvier et al 2008;Le Voyer et al 2008;Sorbadere et al 2011;Shaw et al 2012;Rose-Koga et al 2012). The Cl/F ratio is determined by the slab component, the degree of melting, but also the rate of fluid-induced melting.…”

Section: Effect Of Melt Structure On F and CL Partition Coefficientsmentioning

confidence: 99%

“…This trend is almost parallel to the mixing trend between DMM and fluid and shows that Cl is more fractionated than F during amphibole-bearing wehrlite melting. Melt inclusions from the western Trans-Mexican arc display very low Cl/F (approximately 0.5), which has been interpreted as the melting of a phlogopite-bearing lithology (Vigouroux et al 2008 Figure 4, tested for fluid composition from Straub and Layne (2003), are plotted in the Cl versus F diagram ( Figure 5B), the direction of melting trends is determined by the value of α, whereas the extent of the trends are determined by the degree of melting. There is a rotation in the F versus Cl melting trends with the increasing proportion of metasomatic fluids: from a negative slope of Cl versus F at low α to a near-vertical slope at α = 0.1.…”

Section: Effect Of Melt Structure On F and CL Partition Coefficientsmentioning

confidence: 99%

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Contrasting partition behavior of F and Cl during hydrous mantle melting: implications for Cl/F signature in arc magmas

Dalou

Koga

Voyer

et al. 2014

Prog. in Earth and Planet. Sci.

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We present the results of five experiments on F and Cl partitioning during hydrous mantle melting under conditions relevant to subduction zone magmatism (1.2-2.5 GPa, 1,180°C-1,430°C). For each experiment, we determined the F and Cl partition coefficients between lherzolitic mineral phases (olivine, orthopyroxene (opx), clinopyroxene (cpx), and garnet), amphibole, and hydrous basaltic melts (0.2-5.9 wt.% dissolved H 2 O). At constant pressure, D increases from 0.009 ± 0.0005 to 0.015 ± 0.0008. Experimentally determined F and Cl partition coefficients were used in a hydrous melting model of a lherzolitic mantle metasomatized by slab fluid. In this model, we vary the amount of metasomatic slab fluid added into the mantle while its composition is kept constant. Increasing the amount of fluid results in an increase of both the degree of melting (due to the effect of H 2 O addition) and the F and Cl input in the mantle wedge. Because of the change of F and Cl partition coefficients with the increase of H 2 O, the observed variation in the F and Cl contents of the modeled melts is produced not only by F and Cl input from the fluid, but also by the changes in F and Cl fractionation during hydrous melting. Overall, the model predicts that the Cl/F ratio of modeled melts increases with increasing fluid fraction. Therefore, a variation in the amount of fluid added to the mantle wedge can contribute to the variability in Cl/F ratios observed in arc melt inclusions.

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Section: Effect Of Melt Structure On F and CL Partition Coefficientsmentioning

confidence: 97%

Section: Effect Of Melt Structure On F and CL Partition Coefficientsmentioning

confidence: 99%

Section: Effect Of Melt Structure On F and CL Partition Coefficientsmentioning

confidence: 99%

Section: Effect Of Melt Structure On F and CL Partition Coefficientsmentioning

confidence: 99%

See 2 more Smart Citations

Contrasting partition behavior of F and Cl during hydrous mantle melting: implications for Cl/F signature in arc magmas

Dalou

Koga

Voyer

et al. 2014

Prog. in Earth and Planet. Sci.

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show abstract

“…Some workers have avoided or limited the use of MI that contain bubbles (Lowenstern, 1994;Wallace and Gerlach, 1994;Wallace et al, 1999;Helo et al, 2011;Esposito et al, 2011;Lloyd et al, 2013). When only bubble-bearing MI were available for study, some workers have acknowledged potential contributions from the bubble by stating that the CO 2 contents and pressures determined from the MI are minimum values (Anderson and Brown, 1993;Cervantes and Wallace, 2003;Spilliaert et al, 2006;Kamenetsky et al, 2007;Johnson et al, 2008;Vigouroux et al, 2008;Ruscitto et al, 2010;Esposito et al, 2011). Others report that bubbles are present, but do not further discuss their potential contribution to MI volatile abundances (Lowenstern, 1994;Roggensack et al, 1997;Walker, 2003;Liu et al, 2006;Mangiacapra et al, 2008;Lloyd et al, 2013).…”

Section: Introductionmentioning

confidence: 99%