Seismic refraction imaging of the forearc and active arc of the Mariana island-arc system, at 14° to 19°N. The principal objective is to determine the velocity and density structure of the crust as a proxy for the composition of an intra-oceanic arc, with implications for models of continental growth and crustal recycling to the mantle, and if possible to image magma chambers below active volcanoes.
EarthScope Consortium operates the NSF National Geophysical Facility (NSF NGF).
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