Roger P. Ashley

2.0k total citations · 1 hit paper
43 papers, 1.5k citations indexed

About

Roger P. Ashley is a scholar working on Artificial Intelligence, Geophysics and Anthropology. According to data from OpenAlex, Roger P. Ashley has authored 43 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Artificial Intelligence, 12 papers in Geophysics and 6 papers in Anthropology. Recurrent topics in Roger P. Ashley's work include Geochemistry and Geologic Mapping (23 papers), Geological and Geochemical Analysis (12 papers) and Archaeology and Natural History (6 papers). Roger P. Ashley is often cited by papers focused on Geochemistry and Geologic Mapping (23 papers), Geological and Geochemical Analysis (12 papers) and Archaeology and Natural History (6 papers). Roger P. Ashley collaborates with scholars based in United States, United Kingdom and Canada. Roger P. Ashley's co-authors include G. R. Hunt, Lawrence C. Rowan, Alexander Goetz, Michael J. Abrams, Joanne Lloyd, Anne B. Kahle, Russell C. Evarts, Andrea L. Foster, Kaye S. Savage and James Smith and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, Journal of Hydrology and Geology.

In The Last Decade

Roger P. Ashley

41 papers receiving 1.4k citations

Hit Papers

Spectra of altered rocks in the visible and near infrared 1979 2026 1994 2010 1979 100 200 300 400 500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Spectra of altered rocks in the visible and near infrared
    1979 513 citations Roger P. Ashley et al. Economic Geology profile →

Peers

Roger P. Ashley
Alastair J. Sinclair Canada
Shuhab D. Khan United States
Martiya Sadeghi Sweden
Thomas Cudahy Australia
John M. Guilbert United States
Qingjie Gong China
John C. Mars United States
Rosa María Prol‐Ledesma Mexico
Bernard E. Hubbard United States
S. J. Gardoll Australia
Alastair J. Sinclair Canada
Roger P. Ashley
Citations per year, relative to Roger P. Ashley Roger P. Ashley (= 1×) peers Alastair J. Sinclair

Countries citing papers authored by Roger P. Ashley

Since Specialization
Citations

This map shows the geographic impact of Roger P. Ashley's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Roger P. Ashley with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roger P. Ashley more than expected).

Fields of papers citing papers by Roger P. Ashley

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roger P. Ashley. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Roger P. Ashley. The network helps show where Roger P. Ashley may publish in the future.

Co-authorship network of co-authors of Roger P. Ashley

This figure shows the co-authorship network connecting the top 25 collaborators of Roger P. Ashley. A scholar is included among the top collaborators of Roger P. Ashley based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Roger P. Ashley. Roger P. Ashley is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Foster, Andrea L., Roger P. Ashley, & James J. Rytuba. (2011). Arsenic species in weathering mine tailings and biogenic solids at the Lava Cap Mine Superfund Site, Nevada City, CA. Geochemical Transactions. 12(1). 1–1. 48 indexed citations
2.
Savage, Kaye S., Roger P. Ashley, & D. K. Bird. (2009). Geochemical Evolution of a High Arsenic, Alkaline Pit-Lake in the Mother Lode Gold District, California. Economic Geology. 104(8). 1171–1211. 15 indexed citations
3.
Blakely, Richard J., David A. John, Stephen E. Box, et al.. (2007). Crustal controls on magmatic-hydrothermal systems: A geophysical comparison of White River, Washington, with Goldfield, Nevada. Geosphere. 3(2). 91–91. 9 indexed citations
4.
5.
Foster, Andrea L. & Roger P. Ashley. (2002). Characterization of arsenic species in microbial mats from an inactive gold mine. Geochemistry Exploration Environment Analysis. 2(3). 253–261. 11 indexed citations
6.
Savage, Kaye S., Dennis K. Bird, & Roger P. Ashley. (2000). Legacy of the California Gold Rush: Environmental Geochemistry of Arsenic in the Southern Mother Lode Gold District. International Geology Review. 42(5). 385–415. 41 indexed citations
7.
Ashley, Roger P.. (1998). Foreseeability of environmental hazards: the implications of the Cambridge Water Company case. Geological Society London Special Publications. 128(1). 23–26. 2 indexed citations
8.
Box, Stephen E., Arthur A. Bookstrom, Michael L. Zientek, et al.. (1996). Assessment of undiscovered mineral resources in the Pacific Northwest: a contribution to the Interior Columbia Basin Ecosystem Management Project. Antarctica A Keystone in a Changing World. 6 indexed citations
9.
Bookstrom, Arthur A., Michael L. Zientek, Stephen E. Box, et al.. (1996). Status and metal content of significant metallic mineral deposits in the Pacific Northwest: A contribution to the Interior Columbia Basin Ecosystem Management Project. Antarctica A Keystone in a Changing World. 2 indexed citations
10.
Ashley, Roger P.. (1994). Examples of Groundwater Modelling in Environmental Assessment Studies. Water and Environment Journal. 8(6). 635–645. 1 indexed citations
11.
Evarts, Russell C. & Roger P. Ashley. (1990). Preliminary geologic map of the Goat Mountain quadrangle, Cowlitz County, Washington. Antarctica A Keystone in a Changing World. 1 indexed citations
12.
Evarts, Russell C., Roger P. Ashley, & James Smith. (1987). Geology of the Mount St. Helens area: Record of discontinuous volcanic and plutonic activity in the Cascade Arc of southern Washington. Journal of Geophysical Research Atmospheres. 92(B10). 10155–10169. 58 indexed citations
13.
14.
Rowan, Lawrence C., Alexander Goetz, & Roger P. Ashley. (1977). Discrimination of hydrothermal altered and unaltered rocks in visible and near infrared multispectral images. Geophysics. 42(3). 522–535. 157 indexed citations
15.
Abrams, Michael J., Roger P. Ashley, Lawrence C. Rowan, A. F. H. Goetz, & Anne B. Kahle. (1977). Use of imaging in the 0.46-2.36 [micrometers] spectral region for alteration mapping in the Cuprite mining district, Nevada. Antarctica A Keystone in a Changing World. 10 indexed citations
16.
Ashley, Roger P., et al.. (1975). Distribution of gold and other ore-related elements near ore bodies in the oxidized zone at Goldfield, Nevada. USGS professional paper. 5 indexed citations
17.
Ashley, Roger P. & William J. Keith. (1973). Geochemistry of the altered area at Goldfield, Nevada, including anomalous and background values for gold and other metals. Antarctica A Keystone in a Changing World. 2 indexed citations
18.
Jensen, M. L., et al.. (1971). Primary and secondary sulfates at Goldfield, Nevada. Economic Geology. 66(4). 618–626. 17 indexed citations
19.
Ashley, Roger P.. (1971). Preliminary geologic map of the Goldfield mining district, Esmeralda and Nye counties, Nevada. Antarctica A Keystone in a Changing World. 1 indexed citations
20.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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