Christina A. Neal (Former Employee)
Science and Products
Filter Total Items: 96
Volcanic activity in Alaska; summary of events and response of the Alaska Volcano Observatory, 1992 Volcanic activity in Alaska; summary of events and response of the Alaska Volcano Observatory, 1992
No abstract available.
Authors
Robert G. McGimsey, Christina A. Neal, Michael P. Doukas
Factors influencing the height of Hawaiian lava fountains: implications for the use of fountain height as an indicator of magma gas content Factors influencing the height of Hawaiian lava fountains: implications for the use of fountain height as an indicator of magma gas content
The heights of lava fountains formed in Hawaiian-style eruptions are controlled by magma gas content, volume flux and the amounts of lava re-entrainment and gas bubble coalescence. Theoretical models of lava fountaining are used to analyse data on lava fountain height variations collected during the 1983–1986 Pu'u 'O'o vent of Kilauea volcano, Hawaii. The results show that the variable...
Authors
E.A. Parfitt, L. Wilson, C.A. Neal
Topographic maps of Novarupta dome and selected portions of the Valley of Ten Thousand Smokes, Katmai National Park and Preserve, Alaska Topographic maps of Novarupta dome and selected portions of the Valley of Ten Thousand Smokes, Katmai National Park and Preserve, Alaska
No abstract available.
Authors
Robert Strobe, William Rice, C.A. Neal
Timelapse film logs from the PuuOo-Kupaianaha eruption of Kilauea Volcano; January 1983 through September 1994 Timelapse film logs from the PuuOo-Kupaianaha eruption of Kilauea Volcano; January 1983 through September 1994
No abstract available.
Authors
Tari N. Mattox, C. C. Heliker, J.P. Hoffman, Ken Hon, M. T. Mangan, C.A. Neal, G. E. Ulrich, E.W. Wolfe
Proximal pyroclastic deposits from the 1989-1990 eruption of Redoubt Volcano, Alaska - stratigraphy, distribution, and physical characteristics Proximal pyroclastic deposits from the 1989-1990 eruption of Redoubt Volcano, Alaska - stratigraphy, distribution, and physical characteristics
More than 20 eruptive events during the 1989-1990 eruption of Redoubt Volcano emplaced a complex sequence of lithic pyroclastic-flow, -surge, -fall, ice-diamict, and lahar deposits mainly on the north side of the volcano. The deposits record the changing eruption dynamics from initial gas-rich vent-clearing explosions to episodic gas-poor lava-dome extrusions and failures. The repeated...
Authors
C. A. Gardner, C.A. Neal, R. B. Waitt, R. J. Janda
Emission rates of sulfur dioxide and carbon dioxide from Redoubt Volcano, Alaska during the 1989-1990 eruptions Emission rates of sulfur dioxide and carbon dioxide from Redoubt Volcano, Alaska during the 1989-1990 eruptions
Airborne measurements of sulfur dioxide emission rates in the gas plume emitted from fumaroles in the summit crater of Redoubt Volcano were started on March 20, 1990 using the COSPEC method. During the latter half of the period of intermittent dome growth and destruction, between March 20 and mid-June 1990, sulfur dioxide emission rates ranged from approximately 1250 to 5850 t/d, rates...
Authors
T. J. Casadevall, M.P. Doukas, C.A. Neal, R. G. McGimsey, C. A. Gardner
Filter Total Items: 61
Science and Products
Filter Total Items: 96
Volcanic activity in Alaska; summary of events and response of the Alaska Volcano Observatory, 1992 Volcanic activity in Alaska; summary of events and response of the Alaska Volcano Observatory, 1992
No abstract available.
Authors
Robert G. McGimsey, Christina A. Neal, Michael P. Doukas
Factors influencing the height of Hawaiian lava fountains: implications for the use of fountain height as an indicator of magma gas content Factors influencing the height of Hawaiian lava fountains: implications for the use of fountain height as an indicator of magma gas content
The heights of lava fountains formed in Hawaiian-style eruptions are controlled by magma gas content, volume flux and the amounts of lava re-entrainment and gas bubble coalescence. Theoretical models of lava fountaining are used to analyse data on lava fountain height variations collected during the 1983–1986 Pu'u 'O'o vent of Kilauea volcano, Hawaii. The results show that the variable...
Authors
E.A. Parfitt, L. Wilson, C.A. Neal
Topographic maps of Novarupta dome and selected portions of the Valley of Ten Thousand Smokes, Katmai National Park and Preserve, Alaska Topographic maps of Novarupta dome and selected portions of the Valley of Ten Thousand Smokes, Katmai National Park and Preserve, Alaska
No abstract available.
Authors
Robert Strobe, William Rice, C.A. Neal
Timelapse film logs from the PuuOo-Kupaianaha eruption of Kilauea Volcano; January 1983 through September 1994 Timelapse film logs from the PuuOo-Kupaianaha eruption of Kilauea Volcano; January 1983 through September 1994
No abstract available.
Authors
Tari N. Mattox, C. C. Heliker, J.P. Hoffman, Ken Hon, M. T. Mangan, C.A. Neal, G. E. Ulrich, E.W. Wolfe
Proximal pyroclastic deposits from the 1989-1990 eruption of Redoubt Volcano, Alaska - stratigraphy, distribution, and physical characteristics Proximal pyroclastic deposits from the 1989-1990 eruption of Redoubt Volcano, Alaska - stratigraphy, distribution, and physical characteristics
More than 20 eruptive events during the 1989-1990 eruption of Redoubt Volcano emplaced a complex sequence of lithic pyroclastic-flow, -surge, -fall, ice-diamict, and lahar deposits mainly on the north side of the volcano. The deposits record the changing eruption dynamics from initial gas-rich vent-clearing explosions to episodic gas-poor lava-dome extrusions and failures. The repeated...
Authors
C. A. Gardner, C.A. Neal, R. B. Waitt, R. J. Janda
Emission rates of sulfur dioxide and carbon dioxide from Redoubt Volcano, Alaska during the 1989-1990 eruptions Emission rates of sulfur dioxide and carbon dioxide from Redoubt Volcano, Alaska during the 1989-1990 eruptions
Airborne measurements of sulfur dioxide emission rates in the gas plume emitted from fumaroles in the summit crater of Redoubt Volcano were started on March 20, 1990 using the COSPEC method. During the latter half of the period of intermittent dome growth and destruction, between March 20 and mid-June 1990, sulfur dioxide emission rates ranged from approximately 1250 to 5850 t/d, rates...
Authors
T. J. Casadevall, M.P. Doukas, C.A. Neal, R. G. McGimsey, C. A. Gardner
Filter Total Items: 61
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