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Fate of Forearc Lithosphere at Arc-Continent Collision Zones: Evidence From Local Earthquake Tomography of the Sunda-Banda Arc Transition, Indonesia

Supendi, P.; Nugraha, Andri Dian; Widiyantoro, Sri; Abdullah, C. I.; Rawlinson, Nick; Cummins, Phil; Harris, C. W.; Roosmawati, Nova; Miller, Meghan


A new 3‐D seismic P wave velocity model of the Sunda‐Banda Arc Transition from local earthquake tomography reveals (i) northward subduction of oceanic lithosphere, associated with the convergence of Australia and Sundaland, as a high‐velocity zone extending down to ~200 km depth; (ii) two distinct low‐velocity zones, one immediately above the slab, which is likely a zone of partial melt, and one in the 0-40 km depth range, which is probably a magma chamber associated with active volcanoes...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Geophysical Research Letters
DOI: 10.1029/2019GL086472
Access Rights: Open Access


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