Search for shallow magma accumulations at Augustine Volcano
A search was made for shallow magma accumulations beneath Augustine Volcano using primarily three geophysical techniques: (1) temperature and heat flow measurements, (2) active and passive seismic refraction, and (3) three-dimensional modeling of aeromagnetic data. With these studies it was hoped to gain insight into the interval structure of Augustine Volcano, to delineate, if possible, the size and shape of near surface magma bodies and to assess the potential of the volcano as a natural laboratory for hot rock and magma geothermal energy research. Augustine was chosen because it is a very young and very active volcano with several historic eruptions in 1812, 1883, 1935, 1964/64. One of the main targets for the geophysical studies was a summit lava dome of about 0.05 km/sup 3/ volume, extruded in 1963/64 and suspected to still contain considerable residual heat, perhaps be still partially molten years after its intrusion. Five months after the field work in 1975 this dome was exploded in January 1976. One month later, a hot (about 650 to 800/sup 0/C) viscous dome was intruded into the January summit crater.
- Research Organization:
- Alaska Univ., Fairbanks (USA). Geophysical Inst.
- OSTI ID:
- 5858544
- Report Number(s):
- DOE/ER/70008-2; RLO-2229/T8-2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Low pressure fractionation in arc volcanoes: an example from Augustine Volcano, Alaska
Origin, speciation, and fluxes of trace-element gases at Augustine volcano, Alaska: Insights into magma degassing and fumarolic processes
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Conference
·
Mon Dec 31 23:00:00 EST 1984
· Geol. Soc. Am., Abstr. Programs; (United States)
·
OSTI ID:6611832
Origin, speciation, and fluxes of trace-element gases at Augustine volcano, Alaska: Insights into magma degassing and fumarolic processes
Journal Article
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Fri Jan 31 23:00:00 EST 1992
· Geochimica et Cosmochimica Acta; (United States)
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OSTI ID:5319791
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Technical Report
·
Thu Dec 31 23:00:00 EST 1981
·
OSTI ID:6601206