Structure of Hawaiian volcanoes from seismic refraction data |
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| Authors: | A S Furumoto |
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| Institution: | 1. Hawaii Institute of Geophysics, University of Hawaii, USA
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| Abstract: | Numerous seismic refraction traverses were carried out over the Hawaiian Islands to outline the structure of the volcanoes and determine the thickness of the layers of the crust. Results indicate that there is a progressive thickening of the crust in the area from younger to older volcanic islands. High velocity mantle-like material was detected under rift zones and in volcanic plugs. Volcanic regions were found to be intersected by flexure zones in the crust and in the mantle. The seismic refraction method, in conjunction with gravity and magnetic methods, was found to be successful in outlining the horizontal and vertical structures of rift zones and plugs of volcanoes. |
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