Roger P. Ashley - Concepedia

Author

Roger P. Ashley

Also Known As

Ashley, R., R Ashley, R. Ashley, R. P. ASHLEY, R. P. Ashley, R. Paul Ashley, R.P. Ashley, Richard Ashley, Roger P Ashley, Roger P. Ashley

Publications

Citations

H-Index

Concepts

All Affiliations

United States Geological Survey Jet Propulsion Laboratory Stanford University Denver Federal Center

About

Roger P. Ashley is an author at United States Geological Survey specializing in earth science, geology, and engineering.

Top Concepts

#	Concept	H-Index	Publications	Citations
1	Engineering	12	14	1.5K
2	Chemistry	3	3	682
3	Environmental Engineering	2	2	140
4	Medicine	1	1	11
5	Natural Sciences	1	1	649

Roger P. Ashley

Publications

1.8K

Citations

H-Index

Page 1

	Year	Citations
Spectra of altered rocks in the visible and near infrared G. R. Hunt, Roger P. Ashley Economic Geology EngineeringRock SamplesNonmetallic Mineral DepositIron-bearing Constituent MineralsChemistry	1979	649
Discrimination of hydrothermal altered and unaltered rocks in visible and near infrared multispectral images Lawrence C. Rowan, Alexander Goetz, Roger P. Ashley Geophysics	1977	192
Mapping of hydrothermal alteration in the Cuprite mining district, Nevada, using aircraft scanner images for the spectral region 0.46 to 2.36µm Michael J. Abrams, Roger P. Ashley, Lawrence C. Rowan, Geology EngineeringGeomorphologyEarth ScienceGeophysicsGeological Data	1977	180
Mapping Advanced Argillic Alteration at Cuprite, Nevada, Using Imaging Spectroscopy Gregg A. Swayze, R. N. Clark, A. F. H. Goetz, Economic Geology Remote Sensing CenterEngineeringStructural GeologyGeomorphologyImaging Spectroscopy	2014	178
An example of the use of factor analysis and cluster analysis in groundwater chemistry interpretation Roger P. Ashley, Joanne Lloyd Journal of Hydrology Groundwater QualityHydrogeologyEngineeringEnvironmental EngineeringWater Quality	1978	129
Geology of the Mount St. Helens area: Record of discontinuous volcanic and plutonic activity in the Cascade Arc of southern Washington Russell C. Evarts, Roger P. Ashley, James Smith Journal of Geophysical Research Atmospheres Magmatic ProcessVolcanologyEngineeringVolcanismGeomorphology	1987	78
Alteration mapping using multispectral images: Cuprite mining district, Esmeralda County, Nevada Roger P. Ashley, Michael J. Abrams Antarctica A Keystone in a Changing World	1980	68
Arsenic species in weathering mine tailings and biogenic solids at the Lava Cap Mine Superfund Site, Nevada City, CA Andrea L. Foster, Roger P. Ashley, James J. Rytuba Geochemical Transactions	2011	52
Geology and geochemistry of three sedimentary-rock-hosted disseminated gold deposits in Guizhou Province, People's Republic of China Roger P. Ashley, Charles G. Cunningham, Neely H. Bostick, Ore Geology Reviews EngineeringOre GenesisGuizhou ProvinceDetrital ProvenanceGeology	1991	50
Legacy of the California Gold Rush: Environmental Geochemistry of Arsenic in the Southern Mother Lode Gold District Kaye S. Savage, Dennis K. Bird, Roger P. Ashley International Geology Review HydrogeologyOre ExplorationEngineeringEnvironmental GeochemistryOre Genesis	2000	47

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