Carol A Finn, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 130
New Mexico structural zone - An analogue of the Colorado mineral belt New Mexico structural zone - An analogue of the Colorado mineral belt
Updated aeromagnetic maps of New Mexico together with current knowledge of the basement geology in the northern part of the state (Sangre de Cristo and Sandia–Manzano Mountains)—where basement rocks were exposed in Precambrian-cored uplifts—indicate that the northeast-trending Proterozoic shear zones that controlled localization of ore deposits in the Colorado mineral belt extend...
Authors
P.K. Sims, H. J. Stein, Carol A. Finn
High-resolution aeromagnetic mapping of volcanic terrain, Yellowstone National Park High-resolution aeromagnetic mapping of volcanic terrain, Yellowstone National Park
High-resolution aeromagnetic data acquired over Yellowstone National Park (YNP) show contrasting patterns reflecting differences in rock composition, types and degree of alteration, and crustal structures that mirror the variable geology of the Yellowstone Plateau. The older, Eocene, Absaroka Volcanic Supergroup, a series of mostly altered, andesitic volcanic and volcaniclastic rocks...
Authors
C. A. Finn, L. A. Morgan
New digital data base helps to map North America New digital data base helps to map North America
A new effort is underway to compile an upgraded digital magnetic anomaly data base and map for the North American continent by 2002. This program is a joint effort by the Geological Survey of Canada (GSC), the U.S. Geological Survey (USGS), and Consejo de Recursos Minerales de Mexico (CRM). An integrated, readily accessible, modern digital data base of magnetic anomaly data spanning...
Authors
Carol A. Finn, Mark Pilkington, Alejandro Cuevas, Jaime Urrutia
Geologic controls on the initiation of rapid basal motion for West Antarctic ice streams: a geophysical perspective including new airborne radar sounding and laser altimetry results Geologic controls on the initiation of rapid basal motion for West Antarctic ice streams: a geophysical perspective including new airborne radar sounding and laser altimetry results
No abstract available.
Authors
D. D. Blankenship, D. L. Morse, C. A. Finn, R.E. Bell, M.E. Peters, S.D. Kempf, S. M. Hodge, M. Studinger, John C. Behrendt, J. M. Brozena
Relocation of Wyoming mine production blasts using calibration explosions Relocation of Wyoming mine production blasts using calibration explosions
An important requirement for a comprehensive seismic monitoring system is the capability to accurately locate small seismic events worldwide. Accurate event location can improve the probability of determining whether or not a small event, recorded predominantly by local and regional stations, is a nuclear explosion. For those portions of the earth where crustal velocities are not well...
Authors
Carol A. Finn, Gordon D. Kraft, Matthew S. Sibol, Ronald L. Jones, Mark E. Pulaski
Hunting Mount Rainer's danger zones Hunting Mount Rainer's danger zones
No abstract available.
Authors
Carol A. Finn, T. Sisson
Preliminary Precambrian basement map showing geologic-geophysical domains, Wyoming Preliminary Precambrian basement map showing geologic-geophysical domains, Wyoming
No abstract available.
Authors
P.K. Sims, C. A. Finn, V. L. Rystrom
New digital magnetic anomaly database for North America New digital magnetic anomaly database for North America
The Geological Survey of Canada (GSC), U.S. Geological Survey (USGS), and Consejo de Recursos Minerales of Mexico (CRM) are compiling an upgraded digital magnetic anomaly database and map for North America. This trinational project is expected to be completed by late 2002.
Authors
C. A. Finn, M. Pilkington, A. Cuevas, I. Hernandez, Jaime Urrutia
Subglacial sediments: A regional geological template for iceflow in West Antarctica Subglacial sediments: A regional geological template for iceflow in West Antarctica
We use aerogeophysical data to estimate the distribution of marine subglacial sediments and fault-bounded sedimentary basins beneath the West Antarctic Ice Sheet (WAIS). We find that significant ice flow occurs exclusively in regions covered by subglacial sediments. The onsets and lateral margins of ice streams coincide with the limit of marine sediments. Lateral margins are also...
Authors
M. Studinger, R.E. Bell, D. D. Blankenship, C. A. Finn, R.A. Arko, D. L. Morse, I. Joughin
Preliminary Precambrian basement map of Colorado – A geologic interpretation of the aeromagnetic anomaly map Preliminary Precambrian basement map of Colorado – A geologic interpretation of the aeromagnetic anomaly map
No abstract available.
Authors
P.K. Sims, Viki Bankey, C. A. Finn
Aerogeophysical measurements of collapse-prone hydrothermally altered zones at Mount Rainier volcano Aerogeophysical measurements of collapse-prone hydrothermally altered zones at Mount Rainier volcano
Hydrothermally altered rocks can weaken volcanoes, increasing the potential for catastrophic sector collapses that can lead to destructive debris flows1. Evaluating the hazards associated with such alteration is difficult because alteration has been mapped on few active volcanoes1-4 and the distribution and severity of subsurface alteration is largely unknown on any active volcano. At...
Authors
C. A. Finn, T. W. Sisson, M. Deszcz-Pan
High resolution, low altitude aeromagnetic and electromagnetic survey of Mt Rainier High resolution, low altitude aeromagnetic and electromagnetic survey of Mt Rainier
In October 1996, the USGS conducted a high resolution airborne magnetic and electromagnetic survey in order to discern through-going sections of exposed altered rocks and those obscured beneath snow, vegetation and surficial unaltered rocks. Hydrothermally altered rocks weaken volcanic edifices, creating the potential for catastrophic sector collapses and ensuing formation of destructive...
Authors
V. L. Rystrom, Carol A. Finn, Maryla Deszcz-Pan
Science and Products
Filter Total Items: 130
New Mexico structural zone - An analogue of the Colorado mineral belt New Mexico structural zone - An analogue of the Colorado mineral belt
Updated aeromagnetic maps of New Mexico together with current knowledge of the basement geology in the northern part of the state (Sangre de Cristo and Sandia–Manzano Mountains)—where basement rocks were exposed in Precambrian-cored uplifts—indicate that the northeast-trending Proterozoic shear zones that controlled localization of ore deposits in the Colorado mineral belt extend...
Authors
P.K. Sims, H. J. Stein, Carol A. Finn
High-resolution aeromagnetic mapping of volcanic terrain, Yellowstone National Park High-resolution aeromagnetic mapping of volcanic terrain, Yellowstone National Park
High-resolution aeromagnetic data acquired over Yellowstone National Park (YNP) show contrasting patterns reflecting differences in rock composition, types and degree of alteration, and crustal structures that mirror the variable geology of the Yellowstone Plateau. The older, Eocene, Absaroka Volcanic Supergroup, a series of mostly altered, andesitic volcanic and volcaniclastic rocks...
Authors
C. A. Finn, L. A. Morgan
New digital data base helps to map North America New digital data base helps to map North America
A new effort is underway to compile an upgraded digital magnetic anomaly data base and map for the North American continent by 2002. This program is a joint effort by the Geological Survey of Canada (GSC), the U.S. Geological Survey (USGS), and Consejo de Recursos Minerales de Mexico (CRM). An integrated, readily accessible, modern digital data base of magnetic anomaly data spanning...
Authors
Carol A. Finn, Mark Pilkington, Alejandro Cuevas, Jaime Urrutia
Geologic controls on the initiation of rapid basal motion for West Antarctic ice streams: a geophysical perspective including new airborne radar sounding and laser altimetry results Geologic controls on the initiation of rapid basal motion for West Antarctic ice streams: a geophysical perspective including new airborne radar sounding and laser altimetry results
No abstract available.
Authors
D. D. Blankenship, D. L. Morse, C. A. Finn, R.E. Bell, M.E. Peters, S.D. Kempf, S. M. Hodge, M. Studinger, John C. Behrendt, J. M. Brozena
Relocation of Wyoming mine production blasts using calibration explosions Relocation of Wyoming mine production blasts using calibration explosions
An important requirement for a comprehensive seismic monitoring system is the capability to accurately locate small seismic events worldwide. Accurate event location can improve the probability of determining whether or not a small event, recorded predominantly by local and regional stations, is a nuclear explosion. For those portions of the earth where crustal velocities are not well...
Authors
Carol A. Finn, Gordon D. Kraft, Matthew S. Sibol, Ronald L. Jones, Mark E. Pulaski
Hunting Mount Rainer's danger zones Hunting Mount Rainer's danger zones
No abstract available.
Authors
Carol A. Finn, T. Sisson
Preliminary Precambrian basement map showing geologic-geophysical domains, Wyoming Preliminary Precambrian basement map showing geologic-geophysical domains, Wyoming
No abstract available.
Authors
P.K. Sims, C. A. Finn, V. L. Rystrom
New digital magnetic anomaly database for North America New digital magnetic anomaly database for North America
The Geological Survey of Canada (GSC), U.S. Geological Survey (USGS), and Consejo de Recursos Minerales of Mexico (CRM) are compiling an upgraded digital magnetic anomaly database and map for North America. This trinational project is expected to be completed by late 2002.
Authors
C. A. Finn, M. Pilkington, A. Cuevas, I. Hernandez, Jaime Urrutia
Subglacial sediments: A regional geological template for iceflow in West Antarctica Subglacial sediments: A regional geological template for iceflow in West Antarctica
We use aerogeophysical data to estimate the distribution of marine subglacial sediments and fault-bounded sedimentary basins beneath the West Antarctic Ice Sheet (WAIS). We find that significant ice flow occurs exclusively in regions covered by subglacial sediments. The onsets and lateral margins of ice streams coincide with the limit of marine sediments. Lateral margins are also...
Authors
M. Studinger, R.E. Bell, D. D. Blankenship, C. A. Finn, R.A. Arko, D. L. Morse, I. Joughin
Preliminary Precambrian basement map of Colorado – A geologic interpretation of the aeromagnetic anomaly map Preliminary Precambrian basement map of Colorado – A geologic interpretation of the aeromagnetic anomaly map
No abstract available.
Authors
P.K. Sims, Viki Bankey, C. A. Finn
Aerogeophysical measurements of collapse-prone hydrothermally altered zones at Mount Rainier volcano Aerogeophysical measurements of collapse-prone hydrothermally altered zones at Mount Rainier volcano
Hydrothermally altered rocks can weaken volcanoes, increasing the potential for catastrophic sector collapses that can lead to destructive debris flows1. Evaluating the hazards associated with such alteration is difficult because alteration has been mapped on few active volcanoes1-4 and the distribution and severity of subsurface alteration is largely unknown on any active volcano. At...
Authors
C. A. Finn, T. W. Sisson, M. Deszcz-Pan
High resolution, low altitude aeromagnetic and electromagnetic survey of Mt Rainier High resolution, low altitude aeromagnetic and electromagnetic survey of Mt Rainier
In October 1996, the USGS conducted a high resolution airborne magnetic and electromagnetic survey in order to discern through-going sections of exposed altered rocks and those obscured beneath snow, vegetation and surficial unaltered rocks. Hydrothermally altered rocks weaken volcanic edifices, creating the potential for catastrophic sector collapses and ensuing formation of destructive...
Authors
V. L. Rystrom, Carol A. Finn, Maryla Deszcz-Pan
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government