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Title: Geology of Kilauea volcano

Abstract

This paper summarizes studies of the structure, stratigraphy, petrology, drill holes, eruption frequency, and volcanic and seismic hazards of Kilauea volcano. All the volcano is discussed, but the focus is on its lower east rift zone (LERZ) because active exploration for geothermal energy is concentrated in that area. Kilauea probably has several separate hydrothermal-convection systems that develop in response to the dynamic behavior of the volcano and the influx of abundant meteoric water. Important features of some of these hydrothermal-convection systems are known through studies of surface geology and drill holes. Observations of eruptions during the past two centuries, detailed geologic mapping, radiocarbon dating, and paleomagnetic secular-variation studies indicate that Kilauea has erupted frequently from its summit and two radial rift zones during Quaternary time. Petrologic studies have established that Kilauea erupts only tholeiitic basalt. Extensive ash deposits at Kilauea's summit and on its LERZ record locally violent, but temporary, disruptions of local hydrothermal-convection systems during the interaction of water or steam with magma. Recent drill holes on the LERZ provide data on the temperatures of the hydrothermal-convection systems, intensity of dike intrusion, porosity and permeability, and an increasing amount of hydrothermal alteration with depth. The prehistoric and historic recordmore » of volcanic and seismic activity indicates that magma will continue to be supplied to deep and shallow reservoirs beneath Kilauea's summit and rift zones and that the volcano will be affected by eruptions and earthquakes for many thousands of years. 71 refs., 2 figs.« less

Authors:
 [1];  [2]
  1. (Geological Survey, Denver, CO (United States). Federal Center)
  2. (Geological Survey, Hawaii National Park, HI (United States). Hawaiian Volcano Observatory)
Publication Date:
OSTI Identifier:
5698251
Resource Type:
Journal Article
Journal Name:
Geothermics (International Journal of Geothermal Research and its Applications); (United States)
Additional Journal Information:
Journal Volume: 22:4; Journal ID: ISSN 0375-6505
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; KILAUEA VOLCANO; GEOLOGY; AGE ESTIMATION; CALDERAS; GEOMORPHOLOGY; TUFF; WELL LOGGING; VOLCANOES; 150200* - Geology & Hydrology of Geothermal Systems

Citation Formats

Moore, R.B., and Trusdell, F.A. Geology of Kilauea volcano. United States: N. p., 1993. Web. doi:10.1016/0375-6505(93)90002-5.
Moore, R.B., & Trusdell, F.A. Geology of Kilauea volcano. United States. doi:10.1016/0375-6505(93)90002-5.
Moore, R.B., and Trusdell, F.A. Sun . "Geology of Kilauea volcano". United States. doi:10.1016/0375-6505(93)90002-5.
@article{osti_5698251,
title = {Geology of Kilauea volcano},
author = {Moore, R.B. and Trusdell, F.A.},
abstractNote = {This paper summarizes studies of the structure, stratigraphy, petrology, drill holes, eruption frequency, and volcanic and seismic hazards of Kilauea volcano. All the volcano is discussed, but the focus is on its lower east rift zone (LERZ) because active exploration for geothermal energy is concentrated in that area. Kilauea probably has several separate hydrothermal-convection systems that develop in response to the dynamic behavior of the volcano and the influx of abundant meteoric water. Important features of some of these hydrothermal-convection systems are known through studies of surface geology and drill holes. Observations of eruptions during the past two centuries, detailed geologic mapping, radiocarbon dating, and paleomagnetic secular-variation studies indicate that Kilauea has erupted frequently from its summit and two radial rift zones during Quaternary time. Petrologic studies have established that Kilauea erupts only tholeiitic basalt. Extensive ash deposits at Kilauea's summit and on its LERZ record locally violent, but temporary, disruptions of local hydrothermal-convection systems during the interaction of water or steam with magma. Recent drill holes on the LERZ provide data on the temperatures of the hydrothermal-convection systems, intensity of dike intrusion, porosity and permeability, and an increasing amount of hydrothermal alteration with depth. The prehistoric and historic record of volcanic and seismic activity indicates that magma will continue to be supplied to deep and shallow reservoirs beneath Kilauea's summit and rift zones and that the volcano will be affected by eruptions and earthquakes for many thousands of years. 71 refs., 2 figs.},
doi = {10.1016/0375-6505(93)90002-5},
journal = {Geothermics (International Journal of Geothermal Research and its Applications); (United States)},
issn = {0375-6505},
number = ,
volume = 22:4,
place = {United States},
year = {1993},
month = {8}
}