Jim Kauahikaua (Former Employee)
Science and Products
Filter Total Items: 59
Deep magmatic structures of Hawaiian volcanoes, imaged by three-dimensional gravity models
A simplified three-dimensional model for the island of Hawai'i, based on 3300 gravity measurements, provides new insights on magma pathways within the basaltic volcanoes. Gravity anomalies define dense cumulates and intrusions beneath the summits and known rift zones of every volcano. Linear gravity anomalies project southeast from Kohala and Mauna Kea summits and south from Hualālai and Mauna Lo
Authors
J. Kauahikaua, T. Hildenbrand, M. Webring
The Pu‘u ‘Ō‘ō-Kūpaianaha erruption of Kīlauea, November 1991–February 1994: Field data and flow maps
The Pu'u 'Ō'ō-Kūpaianaha eruption on the east rift zone of Kīlauea, which began in January 1983, is the longest-lived rift zone eruption of the last two centuries. By 1994, a broad field of lava, nearly 1 km3 in volume and 12 km wide at the coast, had buried 87 km2 of the volcano's south flank. The initial six months of fissure eruptions (episodes 1-3) were followed by three years of episodic lava
Authors
C. Christina Heliker, Margaret T. Mangan, Tari N. Mattox, James P. Kauahikaua
Observations on basaltic lava streams in tubes from Kilauea Volcano, island of Hawai'i
From 1986 to 1997, the Pu'u 'O'o-Kupaianaha eruption of Kilauea produced a vast pahoehoe flow field fed by lava tubes that extended 10–12 km from vents on the volcano's east rift zone to the ocean. Within a kilometer of the vent, tubes were as much as 20 m high and 10–25 m wide. On steep slopes (4–10°) a little farther away from the vent, some tubes formed by roofing over of lava channels. Lava st
Authors
J. Kauahikaua, K. V. Cashman, T. N. Mattox, C. Christina Heliker, K.A. Hon, M. T. Mangan, C.R. Thornber
Chronology of the episode 54 eruption at Kilauea Volcano, Hawaii, from GOES-9 satellite data
The free availability of GOES satellite data every 15 minutes makes these data an attractive tool for studying short-term changes on cloud-free volcanoes in the Pacific basin. We use cloud-free GOES-9 data to investigate the chronology of the January 1997, episode 54 eruption of Kilauea Volcano, Hawaii. Seventy-six images for this effusive eruption were collected over a 60-hour period and show the
Authors
A.J.L. Harris, L. Keszthelyi, L.P. Flynn, P. J. Mouginis-Mark, C. Thornber, J. Kauahikaua, D. Sherrod, F. Trusdell, M.W. Sawyer, P. Flament
A quantitative look at the demise of a basaltic vent: The death of Kupaianaha, Kilauea Volcano, Hawai'i
The Kupaianaha vent, the source of the 48th episode of the 1983-to-present Pu'u 'O'o-Kupaianaha eruption, erupted nearly continuously from July 1986 until February 1992. This investigation documents the geophysical and geologic monitoring of the final 10 months of activity at the Kupaianaha vent. Detailed very low frequency (VLF) electromagnetic profiles across the single lava tube transporting la
Authors
J. Kauahikaua, M. Mangan, C. Heliker, T. Mattox
Volcanic activity and ground deformation hazard analysis for the Hawaii Geothermal Project environmental impact statement
No abstract available
Authors
James P. Kauahikaua, Richard B. Moore, Paul T. Delaney
Emplacement and inflation of pahoehoe sheet flows: observations and measurements of active lava flows on Kilauea volcano, Hawaii
Inflated pahoehoe sheet flows have a distinctive horizontal upper surface, which can be several hundred meters across, and are bounded to steep monoclinal uplifts. The inflated sheet flows studied ranged from 1 to 5 m in thickness, but initially propagated as thin sheets of fluid pahoehoe lava, generally 20-30 cm thick. The morphology of the lava as flow advanced is described. Inflated sheet flows
Authors
K. Hon, J. Kauahikaua, R. Denlinger, K. Mackay
Thermal budget of the lower east rift zone, Kilauea Volcano
The lower east rift zone of Kilauea has been the site of repeated fissure eruptions fed by dikes that traverse the depths of interest to geothermal explorations. We find that a hot-rock-and-magma system of low permeability extending along the rift zone at depths below about 4 km and replenished with magma at a rate that is small in comparison to the modern eruption rate Kilauea can supply heat to
Authors
Paul T. Delaney, Wendell A. Duffield, John H. Sass, James P. Kauahikaua
Development of the 1990 Kalapana Flow Field, Kilauea Volcano, Hawaii
The 1990 Kalapana flow field is a complex patchwork of tube-fed pahoehoe flows erupted from the Kupaianaha vent at a low effusion rate (approximately 3.5 m3/s). These flows accumulated over an 11-month period on the coastal plain of Kilauea Volcano, where the pre-eruption slope angle was less than 2??. the composite field thickened by the addition of new flows to its surface, as well as by inflati
Authors
T. N. Mattox, C. Heliker, J. Kauahikaua, K. Hon
Geophysical characteristics of the hydrothermal systems of Kilauea volcano, Hawaii
Clues to the overall structure of Kilauea volcano can be obtained from spatial studies of gravity, magnetic, and seismic velocity variations. The rift zones and summit are underlain by dense, magnetic, high P-wave-velocity rocks at depths of about 2 km less. The gravity and seismic velocity studies indicate that the rift structures are broad, extending farther to the north than to the south of the
Authors
J. Kauahikaua
Morphology of extinct lava tubes and the implications for tube evolution, Chain of Craters Road, Hawaii Volcanoes National Park, Hawaii
No abstract available.
Authors
K.M. Cooper, James P. Kauahikaua
An assessment of the ground-water resources of Kaho'olawe, Hawaii using transient electromagnetic and Schlumberger soundings
No abstract available.
Authors
James P. Kauahikaua
Filter Total Items: 49
Science and Products
Filter Total Items: 59
Deep magmatic structures of Hawaiian volcanoes, imaged by three-dimensional gravity models
A simplified three-dimensional model for the island of Hawai'i, based on 3300 gravity measurements, provides new insights on magma pathways within the basaltic volcanoes. Gravity anomalies define dense cumulates and intrusions beneath the summits and known rift zones of every volcano. Linear gravity anomalies project southeast from Kohala and Mauna Kea summits and south from Hualālai and Mauna Lo
Authors
J. Kauahikaua, T. Hildenbrand, M. Webring
The Pu‘u ‘Ō‘ō-Kūpaianaha erruption of Kīlauea, November 1991–February 1994: Field data and flow maps
The Pu'u 'Ō'ō-Kūpaianaha eruption on the east rift zone of Kīlauea, which began in January 1983, is the longest-lived rift zone eruption of the last two centuries. By 1994, a broad field of lava, nearly 1 km3 in volume and 12 km wide at the coast, had buried 87 km2 of the volcano's south flank. The initial six months of fissure eruptions (episodes 1-3) were followed by three years of episodic lava
Authors
C. Christina Heliker, Margaret T. Mangan, Tari N. Mattox, James P. Kauahikaua
Observations on basaltic lava streams in tubes from Kilauea Volcano, island of Hawai'i
From 1986 to 1997, the Pu'u 'O'o-Kupaianaha eruption of Kilauea produced a vast pahoehoe flow field fed by lava tubes that extended 10–12 km from vents on the volcano's east rift zone to the ocean. Within a kilometer of the vent, tubes were as much as 20 m high and 10–25 m wide. On steep slopes (4–10°) a little farther away from the vent, some tubes formed by roofing over of lava channels. Lava st
Authors
J. Kauahikaua, K. V. Cashman, T. N. Mattox, C. Christina Heliker, K.A. Hon, M. T. Mangan, C.R. Thornber
Chronology of the episode 54 eruption at Kilauea Volcano, Hawaii, from GOES-9 satellite data
The free availability of GOES satellite data every 15 minutes makes these data an attractive tool for studying short-term changes on cloud-free volcanoes in the Pacific basin. We use cloud-free GOES-9 data to investigate the chronology of the January 1997, episode 54 eruption of Kilauea Volcano, Hawaii. Seventy-six images for this effusive eruption were collected over a 60-hour period and show the
Authors
A.J.L. Harris, L. Keszthelyi, L.P. Flynn, P. J. Mouginis-Mark, C. Thornber, J. Kauahikaua, D. Sherrod, F. Trusdell, M.W. Sawyer, P. Flament
A quantitative look at the demise of a basaltic vent: The death of Kupaianaha, Kilauea Volcano, Hawai'i
The Kupaianaha vent, the source of the 48th episode of the 1983-to-present Pu'u 'O'o-Kupaianaha eruption, erupted nearly continuously from July 1986 until February 1992. This investigation documents the geophysical and geologic monitoring of the final 10 months of activity at the Kupaianaha vent. Detailed very low frequency (VLF) electromagnetic profiles across the single lava tube transporting la
Authors
J. Kauahikaua, M. Mangan, C. Heliker, T. Mattox
Volcanic activity and ground deformation hazard analysis for the Hawaii Geothermal Project environmental impact statement
No abstract available
Authors
James P. Kauahikaua, Richard B. Moore, Paul T. Delaney
Emplacement and inflation of pahoehoe sheet flows: observations and measurements of active lava flows on Kilauea volcano, Hawaii
Inflated pahoehoe sheet flows have a distinctive horizontal upper surface, which can be several hundred meters across, and are bounded to steep monoclinal uplifts. The inflated sheet flows studied ranged from 1 to 5 m in thickness, but initially propagated as thin sheets of fluid pahoehoe lava, generally 20-30 cm thick. The morphology of the lava as flow advanced is described. Inflated sheet flows
Authors
K. Hon, J. Kauahikaua, R. Denlinger, K. Mackay
Thermal budget of the lower east rift zone, Kilauea Volcano
The lower east rift zone of Kilauea has been the site of repeated fissure eruptions fed by dikes that traverse the depths of interest to geothermal explorations. We find that a hot-rock-and-magma system of low permeability extending along the rift zone at depths below about 4 km and replenished with magma at a rate that is small in comparison to the modern eruption rate Kilauea can supply heat to
Authors
Paul T. Delaney, Wendell A. Duffield, John H. Sass, James P. Kauahikaua
Development of the 1990 Kalapana Flow Field, Kilauea Volcano, Hawaii
The 1990 Kalapana flow field is a complex patchwork of tube-fed pahoehoe flows erupted from the Kupaianaha vent at a low effusion rate (approximately 3.5 m3/s). These flows accumulated over an 11-month period on the coastal plain of Kilauea Volcano, where the pre-eruption slope angle was less than 2??. the composite field thickened by the addition of new flows to its surface, as well as by inflati
Authors
T. N. Mattox, C. Heliker, J. Kauahikaua, K. Hon
Geophysical characteristics of the hydrothermal systems of Kilauea volcano, Hawaii
Clues to the overall structure of Kilauea volcano can be obtained from spatial studies of gravity, magnetic, and seismic velocity variations. The rift zones and summit are underlain by dense, magnetic, high P-wave-velocity rocks at depths of about 2 km less. The gravity and seismic velocity studies indicate that the rift structures are broad, extending farther to the north than to the south of the
Authors
J. Kauahikaua
Morphology of extinct lava tubes and the implications for tube evolution, Chain of Craters Road, Hawaii Volcanoes National Park, Hawaii
No abstract available.
Authors
K.M. Cooper, James P. Kauahikaua
An assessment of the ground-water resources of Kaho'olawe, Hawaii using transient electromagnetic and Schlumberger soundings
No abstract available.
Authors
James P. Kauahikaua
Filter Total Items: 49