A deep research drill hole at the summit of an active volcano, Kilauea, Hawaii

Geophysical Research Letters
By: , and 

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Abstract

Drilling and geophysical logging data for a 1,262 m‐deep bore hole in the area inferred to overlie the magma reservoir of Kilauea Volcano, Hawaii, support earlier interpretations based on surface geophysical surveys that a zone of brackish or saline water lies above the reservoir. Temperatures encountered within the hole are not sufficiently high to warrant commercial interest; the maximum temperature, 137°C, is at the hole bottom. However, the temperature gradient toward the bottom of the hole (approximately 160 m below sea level) increases sharply to about 370°C/km, perhaps partly reflecting the effect of decreased water circulation as suggested by the geophysical logging data. If this gradient persists or increases with depth, magmatic temperatures would be attained within 3 km from the hole bottom (i.e., approximately 4 km from ground surface)—a depth in accord with data from ground‐deformation and seismic studies.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title A deep research drill hole at the summit of an active volcano, Kilauea, Hawaii
Series title Geophysical Research Letters
DOI 10.1029/GL001i007p00323
Volume 1
Issue 7
Year Published 1974
Language English
Publisher Wiley
Contributing office(s) California Volcano Observatory
Description 4 p.
First page 323
Last page 326
Country United States
State Hawaii
Other Geospatial Kilauea Volcano
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