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Johnson et al. 2009

Variable water within the MGVF (1-6 wt%)

Jorullo melt inclusions show highest water at ~5-6 wt%, Hoya Alvarez the lowest at ~1 wt%

Johnson et al. suggest variably depleted

mantle source along volcanic front (Jorullo) and more fertile source in back-arc (Hoya Alvarez)

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