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Item Description Hermance, J.F.. en_US Forsyth, D.W.. en_US Colp, J.L. en_US 2012-01-27T20:19:42Z 2012-01-27T22:19:23Z 2012-01-27T20:19:42Z 2012-01-27T22:19:23Z 1979-12-01 en_US
dc.identifier.citation Hermance JF, Forsyth DW, Colp JL. Geophysical sensing experiments on Kilauea Iki lava lake. Albuquerque (NM): Sandia Laboratories. en_US
dc.identifier.other Report Number SAND-77-0828; OSTI ID: 5438187 en_US
dc.description "Prepared by Sandia Laboratories, Albuquerque, New Mexico 87185 and Livermore, California 94550 for the United States Department of Energy under Contract DE-AC04-76DP00789." en_US
dc.description.abstract The Hawaiian lava lake in the Kilauea Iki pit crater, resulting from the 1959 summit eruption of Kilauea volcano, has served as a natural laboratory for the continuing study of the petrology, rheology, and thermal history of ponded molten basalt flows in the field environment. During 1975 and 1976, a series of electromagnetic and seismic experiments were coordinated in an attempt to define the in-situ geophysical properties and the configuration of the molten lava core as closely as possible. Drilling and geophysical experiments in 1976 suggested that the solidified crust of the lava lake had a cool, resistive surface layer, undersaturated with water to a depth of 5 meters. A warm, wet layer containing appreciable water and/or steam was essentially isothermal (100/sup 0/C) to 33 meters. From 33 to 45 meters the temperature climbed rapidly (from 100/sup 0/ to 1070/sup 0/C) until a thin plexus of molten sills was encountered, interbedded with solid layers. Below this (50 meters) was apparently a layer having the highest temperature, lowest viscosity, and lowest density of olivine phenocrysts. At 70 meters, a transition zone to a crystalline mush was indicated, and finally (between 80 and 95 meters), solid basalt extended down to the preflow surface at a depth of 115 to 120 meters. en_US
dc.description.sponsorship DOE Contract Number: AC04-76DP00789 en_US
dc.format.extent 43 pages en_US
dc.language.iso en-US en_US
dc.publisher Sandia Laboratories en_US
dc.subject geophysics en_US
dc.subject magma en_US
dc.subject exploration en_US
dc.subject Kilauea en_US
dc.subject Hawaii en_US
dc.title Geophysical sensing experiments on Kilauea Iki lava lake en_US
dc.type Report en_US
dc.type.dcmi Text en_US

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