Sombrero uplift above the Altiplano-Puna Magma Body: evidence of a ballooning mid-crustal diapir.


The Altiplano-Puna ultralow-velocity zone in the central Andes, South America, is the largest active magma body in Earth's continental crust. Space geodetic observations reported an uplift in the Altiplano-Puna proper at a rate of ~10 mm/year; however, the nature of the inferred inflation source has been uncertain. We present data showing that the uplift… (More)
DOI: 10.1126/science.1226358


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