HR: 14:00h
AN: S43C-01 INVITED     [Abstracts]
TI: Cooperative Seismological Studies in the Andes
AU: * Kind, R
EM: kind@gfz-potsdam.de
AF: GFZ Potsdam, Telegrafenberg, Potsdam, 14473, Germany
AU: Asch, G
AF: GFZ Potsdam, Telegrafenberg, Potsdam, 14473, Germany
AU: Yuan, X
AF: GFZ Potsdam, Telegrafenberg, Potsdam, 14473, Germany
AU: Bataille, K
AF: Dep Ciencias de la Tierra, Universidad de Conception, Conception, Chile
AB: Since the early nineties a number of passive and active seismic studies have been carried out in the central and southern Andes in a joint effort of Geman, Chilean, Argentian and Bolivian institutions. Applied techniques are high resolution studies of the seismicity and structure. The at that time new seismic techniques of receiver function analysis has been applied in a large scale. Important new results have been obtained like images and maps of the upper plate Moho (even in the volcanic arc, where the existence of the Moho was questioned) and images of the subducting crust down to more than 100 km (where the connection with petrological phase transformations and seismicity was established). A zone of partial melt was found in the upper crust of the high plateau. The ascent path of melt from the subducting slab to the surface has been mapped with seismic tomography. Observational results from the central and southern Andes are compared.
DE: 7218 Lithosphere (1236)
DE: 7230 Seismicity and tectonics (1207, 1217, 1240, 1242)
DE: 7240 Subduction zones (1207, 1219, 1240)
SC: Seismology [S]
MN: 2007 Joint Assembly