Richard L Reynolds


I study influences of climatic variability and land uses on American drylands—their ecosystems, surface materials, and geologic underpinnings—with emphasis on sediment eroded and deposited by wind, mostly as atmospheric dust. Dust represents local, regional, and global translocation of enormous amounts of matter and energy. I attempt to comprehend the mineralogic and geochemical properties of dust that generate effects on climate, weather, ecosystem health, water resources (effects of dust on melting of snow and ice), ocean fertility, and the health of a significant proportion of earth’s people. I have also participated in research on Hawaiian coral-reef health in settings of coastal erosion and sediment run-off.



A.B., Cum Laude, Geological Sciences, Princeton University, 1968

M.S., Geological Sciences, University of Colorado, 1970

Ph.D., Geological Sciences, University of Colorado, 1975



1975-2012 Research Geologist, USGS (with periodic supervisory positions)

2002 Acting Program Manager, Earth Surface Dynamics (Global Change) Program, USGS

2012-2013 Senior Scientist


Other Affiations

University of Minnesota, Adjunct Research Professor

University of Colorado, Institute for Arctic and Alpine Research, Affiliate

University of Colorado, Graduate Faculty

Research Experience (Current Research denoted by *)

· Development of dry landscapes—past, present, and future—through understanding interactions among geologic, ecologic, land-use, and climatic processes *

          · Geologic, biologic, and human controls on dust generation *

          · Roles of dust in dryland ecosystem dynamics *

          · Geochemistry and mineralogy of modern dust and dust-source sediments*

·  Quaternary climate and responses of landscapes to climatic change and human activities*

          · Environmental magnetism—applications to geomorphology and surficial processes *

          · Iron-sulfur diagenesis and its effects on magnetic properties of lake sediments, with applications to paleomagnetic and environmental change records *

          · Chemical and magnetic records of airborne pollution*

·   Recognition of land-derived sediments and processes of sediment discharge and transport across and onto sensitive coral reefs 

·  Evolution of volcanic fields

          · Paleomagnetism of Tertiary and Quaternary volcanic rocks

          · Effects of alteration on magnetic properties of igneous rocks

·  Sources of magnetic anomalies in the shallow crust

·  Origins of uranium deposits

·  Field geologic research, Antarctica (1970-1971; 1978-1979)


Current Memberships in professional societies

Geological Society of America; elected Fellow 1994

American Geophysical Union.  Associate Editor, Journal of Geophysical Research; 1992-1995

Yellowstone-Bighorn Research Association

American Quaternary Association

International Medical Geology Association

International Society for Aeolian Research (guest editor, Aeolian Research 2013-14; Board of Directors, 2014-2016)



1969 Guest student investigator--Woods Hole Oceanographic Institute.

1972 Recipient--NSF Doctoral Dissertation Research Grant.

1972 Recipient--Sigma Xi, Grant-in-Aid of Research.

1972 Recipient--GSA Research Grant.

1992 Award for the Best Paper in Geophysics.

1993 Visiting Fellow, Institute for Rock Magnetism, Univ. Minnesota

1994 Elected Fellow, Geological Society of America.

1995 Co-recipient of the Chandler-Misener Award, Best Paper in the Jour. Great Lakes Research (v. 20).

Meritorious Service Award, Department of the Interior (1995).

2007 Co-recipient, Kirk Bryan Award for best publication in the field of Quaternary Geology and Geomorphology, Geological Society of America.

2011 Astor Visiting Lecturer for the Humanities (School of Geography and the Environment), Univ. of Oxford

2012-2014 Distinguished Visiting Scholar, School of Geography and the Environment, Univ. of Oxford

2012 Appointed Senior Scientist, USGS


Lectureships (about 75 invited lectures, excluding USGS); examples: 

University of Oxford, 2013 seminar for School of Geography and the Environment, Dust and Human Health. University of Oxford, Astor Lectureship, 2011.University of Utah Distinguished Lecture; Univ. of Cape Town; Colorado School of Mines, VanTuyl Lecture; Lehigh Univ. (Sigma Xi induction ceremony); Universities of Oregon, New Mexico, Minnesota, Montana, Colorado, Arizona, Texas; Princeton Univ.; Allegheny College; also National Center for Atmospheric Research; Egyptian Geological Survey and Mining Authority; Woods Hole Oceanographic Inst.; Federal agencies (non-USGS since 2000): DOI Managers; EPA (Long-range transport of biological contaminants; and dust in North America); NPS (Air Quality Div.); BLM (Annual Science Conf. Keynote)



USGS (recent): Contributor to Global Change Program Vision and Strategy (2010); Global Change Program Research Plan for 2011-2015 (2010); Global Change Research Plan 2005-2010 (2004); Earth Surface Dynamics (global change) Program Coordinator Acting, 2002. U.S. Global Change Research Program, writer for Strategic Plan 2012-2021. 

Academic community:Graduate Faculty, University of Colorado, (1980-1981; 1993-present). Thesis committees (Univ. of Colorado (dates above), Univ. of Michigan (1989-1991), Michigan Tech Univ. (1979), Univ. of Utah (2004-2008). Five Ph.D.; six M.S.

National Science Foundation: Chair, Site-review panel for Science & Technology Center Program, 1988. Conference Organizing Committee, “Paleoclimate of W. North America” Albuquerque, 1994-95. Reviewer of research proposals for Geosciences (Earth Sciences—eight Programs; Atmospheric Sciences—two Programs); Biological Sciences (Ecosystem Science); Polar Programs.  Committee of Visitors review panel for Surface Earth Processes programs, 2011. 

Reviewer of research proposals for (selected short list): American Chemical Society; Sigma Xi; DOE Energy Programs; Natural Science and Engineering Research Council of Canada (Environmental Quality & LITHOPROBE); National Institute for Global Environmental Changes; W.M. Keck Foundation; U.S. National Res. Council, Office for Eastern Europe and Europe; National Geographic Society; Ocean Drilling Project; Kearney Foundation of Soil Science; School of Forestry, Univ. Northern Arizona; State of Montana.

Technical reviewer of manuscripts for JGR-Solid Earth, -Atmospheres; -Earth Surface; Geophys. Res. Letts; Geochem., Geophys., Geosys. (G3); Tectonics; AGU Handbook of Physical Constants; Geophys. J. Roy. Astr. Soc.; Nature; Science; Geophysics; Earth & Planet. Sci. Letts.; The Holocene; Quat. Res.; Quat Int’l; GSA Bull., Memoirs, Spec. Papers.; Geology; J. Sed. Petr.; Geol. Soc. London Special Publ.; Canadian J. Earth Sci.; Global Biogeochem. Cycles; J. Paleolim.; Ecosystems;Aeolian Res.; J. Arid Environments; Catena; Earth Surf. Processes & Landforms; Geoderma; J. Environmental Management; Nonlinear Dynamics; Ecol. Appl.; Ground Water; Climate Change National Assessment, U.S. Global Change Res. Program; 10 other journals

Chair, Rock Magnetism and Petrology, Lithospheric-Magnetic Fields Group of the National Geomagnetism Initiative, U.S. Geodynamics Committee. 1991-1992

Organizing Committee, 2005-2006, 6th International Conference on Aeolian Research, Guelph, Canada

United States Representative on UNESCO-funded project IGCP-500, “Westerlies and monsoons: Impacts of climate change and variability on dryland environments, hydrology, and people”, a project designed to enhance the welfare of dryland societies. (2004-2009)

Review and Advisory Comm., Institute for Rock Magnetism, Univ. of Minnesota, 1990-1994; Chair 1992-1994; 2010-2011.



 About 165 peer-reviewed papers: ~100 in professional journals; 15 book chapters; 6 publications in conference proceedings; 2 in EOS; Trans. Am. Geophys. Union; 43 USGS Professional Paper chapters, Bulletins, Open-file Reports. About 220 peer-reviewed abstracts.


Selected Publications Since 1990

Hettiarachchi, E., Reynolds, R.L., Goldstein, H.L., Moskowitz, B., Rubasinghege, Gayan, 2019, Bioavailable iron production in airborne mineral dust: Controls by chemical composition and solar flux. Atmospheric Environment 205, 90–102,    

Huang, Y., Kok, J.F., Martin, R. L., Swet, N., Katra, I., Gill, T.E., Reynolds, R.L., Freire, L.S., 2019, Fine dust emissions from active sands at coastal Oceano Dunes, California, Atmos. Chem. Phys., 19, 2947-2964,

Urban, F. E., Goldstein, H. L., Fulton, R., Reynolds, R. L., 2018, Unseen dust emission and global dust abundance: Documenting dust emission from the Mojave Desert (USA) by daily remote camera imagery and wind-erosion measurements. Journal of Geophysical Research: Atmospheres, 123, 8735–8753.

Hettiarachchi, Eshani, Reynolds, R.L., Goldstein, H.L., Moskowitz, B., Rubasinghege, Gayan, 2018, Iron dissolution and speciation in atmospheric mineral dust: Metal-metal synergistic and antagonistic effects. Atmospheric Environment. v. 187, p. 417-423.

Zhang, Z., Goldstein, H.L., Reynolds, R.L., Hu, Y., Wang, X., Zhu, M., 2018, Phosphorus Speciation and Solubility in Aeolian Dust Deposited in the Interior American West. Environ. Sci. Technol., 2018, 52 (5), pp 2658–2667; DOI: 10.1021/acs.est.7b04729

Goldstein, H.L., Breit, G.N., Reynolds, R.L., 2017, Controls on the chemical composition of saline surface crusts and emitted dust from a wet playa in the Mojave Desert (USA). Journal of Arid Environments 140, 50-66. DOI:10.1016/j.jaridenv.2017.01.010.

Reynolds, R.L., Munson, S.M., Fernandez, D.P., Neff, J.C., 2016, Concentrations of mineral aerosol from desert to plains across the central Rocky Mountains, western United States. Aeolian Research 23, 21-35. DOI:10.1016/j.aeolia.2016.09.001.

Moskowitz, B.M., Reynolds, R.L., Goldstein, H.L., Berquó, T., Kokaly, R.F., Bristow, C.S., 2016, Iron oxide minerals in dust-source sediments from the Bodélé Depression, Chad: Implications for radiative properties of dust plumes from the Sahara and potential nutrients. Aeolian Research 22, 93-106. DOI:10.1016/j.aeolia.2016.07.001.

Skiles, S. M., Painter, T.H., Belnap, J., Holland, L., Reynolds, R.L., Goldstein, H.L., Lin, J., 2015, Regional variability in dust-on-snow processes and impacts in the Upper Colorado River Basin. Hydrologic Processes 29, 5,397-5,413. doi:10.1002/hyp.10569.

Whitney, J.W., Buckingham, S.E., Breit, G.N., Bogle, R.C. Luo, L., Reynolds, R.L., Goldstein, H.L., Vogel, J. M., 2015, Aeolian responses to climate variability during the past century on Mesquite Lake Playa, Mojave Desert. Geomorphology 230, 13-25.

Gray, J.E., Hines, M.E., Goldstein, H.L., Reynolds, R.L., 2014, Mercury deposition and methylmercury formation in Narraguinnep Reservoir, southwestern, Colorado, USA. Applied Geochemistry 50, 82-90. 

Reynolds, R.L., Cattle, S.R., Moskowitz, B.M., Goldstein, H.L., Yauk, K., Flagg, C., Berquó, T., Kokaly, R.F., Morman, S., Breit, G., 2014, Iron oxide minerals in dust of the Red Dawn event in eastern Australia, September 2009. Aeolian Research

Ghio, A., others, Goldstein, H.L., Reynolds, R.L., 2014, Biologic effects of desert dust in respiratory epithelial cells and a murine model. Inhalation Toxicology, 26(5): 299–309.

Reynolds, R.L., Goldstein, H.L., Moskowitz, B.M., Bryant, A.C., Skiles, S.M., Kokaly, R.F., Flagg, C.B., Yauk, K., Berquó, T., Breit, G., Ketterer, M., Fernandez. D., Miller, M.E., Painter, T.H., 2013, Composition of dust deposited to snow cover in the Wasatch Range (Utah, USA): Controls on radiative properties of snow cover and comparison to some dust-source sediments. Aeolian Research (

Neff, J.C., Reynolds, R.L., Munson, S. Fernandez, D., Belnap, J., 2013, The role of dust storms in atmospheric particle concentrations at two sites in the western U.S. Journal of Geophysical Research 118, doi:10.1002/jgrd.50855.

Lawrence, C.R, Reynolds, R.L., Ketterer, M., Neff, J.C., 2013, Aeolian controls on soil geochemistry and weathering fluxes in high-elevation ecosystems of the Rocky Mountains, USA: Geochimica et Cosmochimica Acta 107, 27-46.

Flagg, C., Neff, J.C., Belnap, J., Reynolds, R.L., 2013, Spatial and temporal patterns of dust emissions (2004-2012) in semi-arid landscapes, southeastern Utah, USA. Aeolian Research,

Goldstein, H.L., Reynolds, R.L., Morman, S.A., Moskowitz, Bruce, Kokaly, R.F., Goossens, Dirk, Buck, B.J., Flagg, Cody, Till, Jessica, Yauk, Kimberly, and Berquó, T.S., 2013, Iron mineralogy and bioaccessibility of dust generated from soils as determined by reflectance spectroscopy and magnetic and chemical properties—Nellis Dunes recreational area, Nevada: U.S. Geological Survey Scientific Investigations Report 2013–5054, 15 p., .

Miller, M.E., Bowker, M.A., Reynolds, R.L., Goldstein, H.L., 2012, Post-fire land treatments and wind erosion - Lessons from the Milford Flat Fire, UT, USA, Aeolian Research.

Rosenbaum, J.G., Reynolds, R.L., and Colman, S.M., 2012, Fingerprinting of glacial silt in lake sediments yields continuous records of alpine glaciations (35 to 15 ka), western United States: Quaternary Research.

Okin, G., Bullard, J., Reynolds, R.L., Ballantine, J-A., Schepanski, K., Todd, M.C., Belnap, J., Baddock, M.C., Gill, T.E., Miller, M.E., 2011, Dust: Small-scale processes with global-scale consequences: EOS, Transaction of the American Geophysical Union, v. 92, no. 29, 19 July 2011, 241-242.

Goldstein, H.L., Breit, G.N., Yount, J.C., Reynolds, R.L., Reheis, M.C., Skipp, G.L., Fisher, E.M., and Lamothe, P.J., 2011, Physical, chemical, and mineralogical data from surficial deposits, groundwater levels, and water composition in the area of Franklin Lake playa and Ash Meadows, California and Nevada: U.S. Geological Survey Data Series 607, 12 p.

Reynolds, R.L., Goldstein, H., and Miller M.E., 2010, Atmospheric mineral dust in dryland ecosystems: Application of environmental magnetism: Geochemistry, Geophysics, Geosystems. v. 11, no. 1 doi:10.1029/2010GC003101 ISSN: 1525-2027.

Buckingham, S.E., Neff, J.C., Titiz, B., and Reynolds, R.L., 2010, Chemical and textural controls on phosphorous mobility in drylands of southeastern Utah: Biogeochemistry, DOI 10.1007/s10533-010-9408-7.

Reynolds, R.L., Mordecai, J., Rosenbaum, J., Ketterer, M.E., Walsh, M.K., Moser, K., 2010, Compositional changes in sediments of subalpine lakes, Uinta Mountains, Utah: Evidence for the effects of human activity on atmospheric dust inputs: Journal of Paleolimnology, DOI 10.1007/s10933-9394-8.

Moser, K.A., Mordecai, J.S., Reynolds, R.L., Rosenbaum, J.G., and Ketterer, M.E., 2010, Diatom changes in two Uinta mountain lakes, Utah, USA: responses to anthropogenic and natural atmospheric inputs: Hydrobiologia, v. 648 (1) p. 91-108. doi:10.1007/s10750-010-0145-7.

Goldstein, H.L., Miller, M.E., Yount, J.C., Reheis, M.C., Reynolds, R.L., Belnap, J., Lamothe, P.J., and McGeehan, J.P., 2009, Physical, chemical, ecological, and age data and trench logs from surficial deposits at Hatch Point, southeastern Utah: U.S. Geological Survey Open-File Report 2009-1219, 190 p.

Field, J.P., Belnap, J., Breshears, D.D., Neff, J.C., Okin, G.S., Whicker, J.J., Painter, T.H., Ravi, S., Reheis, M.C., and Reynolds, R.L., 2009, The ecology of dust: Frontiers in Ecology and the Environment 2009; doi:10.1890/090050.

Reynolds, R.L., Bogle, R., Vogel, J., Goldstein, H., and Yount, J.C., 2009, Dust emission at Franklin Lake playa, Mojave Desert (USA): Response to meteorological and hydrologic changes 2005-2008InOren, A., Naftz, D.L., and Wurtsbaugh, W.A. (eds.). Saline lakes around the world: unique systems with unique values. Natural Resources and Environmental Issues 15:105-116 (ISSN 1069-5370).

Breit, G., Goldstein, H., Reynolds, R.L., and Yount, J.C., 2009, Distribution of major anions and trace elements in the unsaturated zone beneath Franklin Lake playa, CaliforniaIn Oren, A., Naftz, D.L., and Wurtsbaugh, W.A. (eds.). Saline lakes around the world: unique systems with unique values. Natural Resources and Environmental Issues 15:93-103 (ISSN 1069-5370).

Belnap, J., Reynolds, R.L., Reheis, M.C., Phillips, S.L., Urban, F.E., and Goldstein, H.L., 2009, Sediment losses and gains across a gradient of livestock grazing and plant invasion in a cool, semi-arid grassland: Aeolian Research 1, 27-43

Urban, F.E., Reynolds, R.L., and Fulton, R., 2009, The dynamic interaction of climate, vegetation, and dust emission, Mojave Desert, USAin Fernandez-Bernal, A. and De La Rosa, M.A. (eds.) Arid Environments and Wind Erosion. NOVA Science Publishers, Inc. ISBN 978-1-60692-411-2. 243-267

Takesue, R.K., Bothner, M.H., and Reynolds, R.L., 2009, Land-derived run-off to a coral reef-fringed embayment identified using geochemical tracers in nearshore sediment traps: Estuarine, Coastal, and Shelf Science 85, 459-471.

Heil Jr., C.W., King, J.W., Rosenbaum, J.G., Reynolds, R.L., and Colman, S. M., 2009, Paleomagnetism and environmental magnetism of GLAD800 sediment cores from Bear Lake, Utah and Idaho: inRosenbaum, J.G., and Kaufman, D.S., eds., Paleoenvironments of Bear Lake, Utah and Idaho, and its catchment: Geological Society of America Special Paper 450, p. 291-310.

Rosenbaum, J.G., Dean, W.E., Reynolds, R.L., and Reheis, M.C., 2009, Allogenic sedimentary components of Bear Lake, Utah and Idaho: in Rosenbaum, J.G., and Kaufman, D.S., eds., Paleoenvironments of Bear Lake, Utah and Idaho, and its catchment: Geological Society of America Special Paper 450, p. 145-168.

Reheis, M.C., Budhan, J.R., Lamothe, P.L., and Reynolds, R.L., 2009, Compositions of modern dust and surface sediments in the desert southwest, USA: Journal of Geophysical Research, Earth Surface, 114, F01028, doi:10.1029/2008JF001009, 2009.

Draut, A.E., Bothner, M.H., Reynolds, R.L., Field, M.E., Cochran, S.A., and Logan, J.B., 2009, Supply and dispersal of flood sediment from a steep, tropical watershed: Hanalei Bay, Kaua'i, Hawai'i, USA: Geological Society of America Bulletin, v. 121, no. 3/4; p. 574-585; doi: 10.1130/B26367.1.

Neff, J.C., Ballantyne, A.P., Famer, G.L., Mahowald, N.M., Conroy, J.L., Landry, C.C., Overpeck, J.T., Painter, T.H., Lawrence, C.R., and Reynolds R.L., 2008, Increasing eolian dust deposition in the western United States linked to human activity. Nature - Geosciences. doi:10.1038/ngeo133

Fernandez, D.P., J.C. Neff, R.L. Reynolds, 2007, Biogeochemical and ecological impacts of livestock grazing in semi-arid Southeastern Utah, USA. Journal of Arid Environments. doi:10.1016/j.jaridenv.2007.10.009.

Goldstein, H. L., R. L. Reynolds, M. C. Reheis, J. C. Yount, and J. C. Neff, 2008, Compositional trends in aeolian dust along a transect across the southwestern United States, Journal of Geophysical Research, 113, F02S02, doi:10.1029/2007JF000751.

Reynolds, R.L., Yount, J.C., Reheis, M.C., Goldstein, H., Chavez, Jr., P., Fulton, R., Whitney J., Fuller, C., Forester, R.M., 2007, Dust emission from wet and dry playas in the Mojave Desert (USA). Earth Surface Processes and Landforms; v. 32, 1811-1827. DOI: 10.1002/esp.1515.

Reynolds, R.L., Reheis, M.C., Neff, J.C., Goldstein, H., and Yount, J.C., 2006, Late Quaternary eolian dust in surficial deposits of a Colorado Plateau grassland: Controls on distribution and ecologic effects: Catena, 66, 251-266.

Neff, J.C., Reynolds, R.L., Sanford, R.L., Fernandez. D.P., and Lamothe, P., 2006, Geologic controls over soil and plant chemistry in southeastern Utah: Ecosystems, 9(6), DOI10.1007/s10021-005-0092-8.

Bothner, M.H., Reynolds, R.L., Casso, M.A., Storlazzi, C.D., and Field, M.E., 2006, Quantity, composition, and source of sediment collected in sediment traps along the fringing coral reef of Molokai, Hawaii: Marine Pollution Bulletin, v. 52(9), p. 1034-1047.

Miller, M.E., Belnap, J., Beatty, S.W., and Reynolds, R.L., 2006, Performance of Bromus tectorum L. in relation to soil properties, water additions, and chemical amendments in calcareous soils of southeastern Utah, U.S.A., Plant and Soil, DOI 10.1007/s11104-006-0058-4.

Reynolds, R.L., Reheis, M.C., Yount, J., and Lamothe, P., 2006, Composition of aeolian dust in natural traps on isolated surfaces of the central Mojave Desert-Insights to mixing, sources, and nutrient inputs: Journal of Arid Environments, v. 66, p. 42-61.

Fernandez, D.P., Neff, J.C., Belnap, J., and Reynolds, R.L., 2006, Decomposition in an arid environment on the Colorado Plateau (USA): Abiotic regulators and thresholds: Biogeochemistry DOI:10.1007/s10533-005-4278-0 v. 78, Number 3, p. 247-265.

Reynolds, R.L., Neff, J.C., Reheis, M.C., and Lamothe, P., 2006, Atmospheric dust in modern soil on aeolian sandstone, Colorado Plateau (USA): Variation with landscape position and contribution to potential plant nutrients: Geoderma, v. 130, p. 108-123.

Reynolds, R.L. and Rosenbaum, J.G., 2005, Magnetic mineralogy of sediments in Bear Lake and its watershed, Utah, Idaho, and Wyoming: Support for paleoenvironmental and paleomagnetic interpretations: U.S. Geological Survey Open-file Report 2005-1406, 17 p. (also available at:

Kohfeld, K., Reynolds. R.L., Pelletier, J., and Nickling, W., 2005, Linking the scales of process, observation, and modeling of dust emissions: EOS, Transactions of the American Geophysical Union: v. 8, no. 11, 15 March 2005, p. 113-114.

Neff, J., Reynolds, R.L., Belnap, J., and Lamothe, P., 2005, Multi-decadal impacts of grazing on soil physical and biogeochemical properties in Southeast Utah: Ecological Applications, 15(1), 87-95.

Reheis, M.C., Reynolds, R.L., Goldstein, H., Roberts, H.M., Yount, J.C., Axford, Y., Cummings, L.S., and Shearin, N., 2005, Late Quaternary geomorphic history in upland regions of Canyonlands, Utah: Dunes, dust, soils, arroyos, and paleoclimate: Geological Society of America Bulletin, v. 117, issue 7, p. 1051-1069.

Goldhaber. M.B., Callender, E., and Reynolds, R.L., 2004, The geochemical and magnetic record of coal-combustion products in West Virginia reservoir sediments and soils: in R.J. Hill, J. Leventhal, Z. Aizenshtat, M.J. Baedecker, G. Claypool, R. Eganhouse, M. Goldhaber, and K. Peters (eds.) Geochemical Investigations in Earth and Space Science, The Geochemical Society, Publication No. 9, p. 159-186.

MacKinnon, D., Clow, G., Tigges, R., Reynolds, R.L., and Chavez, P.S., Jr., 2004, Comparison of aerodynamically and model-derived roughness lengths (Z0) over diverse surfaces, central Mojave Desert, California, USA: Geomorphology, v. 63, p. 103-113.

Bradbury, J.P., Colman, S.C., and Reynolds, R.L., 2004, The history of recent limnologic changes and human impact on Upper Klamath Lake, Oregon: Journal of Paleolimnology, p. 151-165.

Rosenbaum, J.G., and Reynolds, R.L., 2004, Basis for paleoenvironmental interpretation of magnetic properties of sediment from Upper Klamath Lake (Oregon): Effects of weathering and mineralogic sorting: Journal of Paleolimnology, p. 253-265.

Rosenbaum, J.G., and Reynolds, R.L., 2004, Record of Late Pleistocene glaciation and deglaciation in the southern Cascade Range: II. Flux of glacial flour in a sediment core from Upper Klamath Lake, Oregon: Journal of Paleolimnology, in press, p. 235-252.

Reynolds, R.L., Rosenbaum, J.G., Rapp, J., Kerwin, M.W., Bradbury, J.P., Colman, S.C., and Adam, D., 2004, Record of Late Pleistocene glaciation and deglaciation in the southern Cascade Range: I. Petrologic evidence from lacustrine sediment in Upper Klamath Lake, southern Oregon: Journal of Paleolimnology, p. 217-233.

Reynolds, R.L., and others, 2003, Dust emission and deposition in the southwestern U.S.-Integrated field, remote sensing, and modeling studies to evaluate response to climatic variability and land use: inAl Sharhan, A.R., Wood, W.W., Goudie, A.S., Fowler, A., and Abdellatif, E., (eds.) Desertification in the Third Millennium: A.A. Balkema/Swets & Zeitlinger, Rotterdam, The Netherlands p. 271-282.

Belnap, Jayne, Phillips, S., Duniway, M., and Reynolds, R.L., 2003, Soil fertility in deserts: A review on the influence of biological soil crust and the effect of soil surface disturbance on nutrient inputs and losses: in Al Sharhan, A.R., Wood, W.W., Goudie, A.S., Fowler, A., and Abdellatif, E., (eds.) Desertification in the Third Millennium: Swets & Zeitlinger, Lisse, The Netherlands, p. 245-252.

Chavez, P.S., Jr., MacKinnon, D.J., Reynolds, R.L., and Velasco, M., 2002, Monitoring dust storms and mapping landscape vulnerability to wind erosion using satellite and ground-based digital images: Arid Lands Newsletter, No, 51, web publication:

Muhs, D.R., Reynolds, R.L., Been, J., and Skipp, G., 2003, Eolian sand transport pathways in the southwestern United States: Importance of the Colorado River: Quaternary International, v. 104, p. 3-18.

Reheis, M.C., Sarna-Wojcicki, A.M., Reynolds, R.L., Repenning, C.A., and Mifflin, M.D., 2002, Pliocene to middle Pleistocene lakes in the western Great Basin: Ages and connections, in Hershler, R., Currey, D., and Madsen, D., eds., Great Basin Aquatic Systems History: Smithsonian Contributions Series, Smithsonian Institution, p. 53-108.

Reynolds, R.L., Belnap, J., Reheis, M., Lamothe, P., Luiszer, F., 2001, Eolian dust in Colorado Plateau soils: Nutrient inputs and recent change in source: Proceedings of the National Academy of Sciences, v. 98, p. 7123-7127.

Reynolds, R.L., Sweetkind, D.S., and Axford, Yarrow, 2001, An inexpensive magnetic mineral separator for fine-grained sediment: U.S. Geological Survey open-file report 01-281, 7 p. (also available at:

Rosenbaum, J.G., Reynolds, R.L., Smoot, J., and Meyer, R., 2000, Anisotropy of magnetic susceptibility as a tool for recognizing core deformation: Reevaluation of the paleomagnetic record of Pleistocene sediments from drill hole OL-92, Owens Lake, California: Earth and Planetary Science Letters, v. 178, p. 415-424.

Reynolds, R.L., Rosenbaum, J.G., Sweetkind, D.S., Lanphere, M.A., Roberts, A.P., and Verosub, K.L., 2000, Recognition of primary and diagenetic magnetizations to determine the magnetic polarity record and timing of deposition of the moat-fill rocks of the Oligocene Creede Formation, in Bethke, P.M., and Hay, R.L., eds., Ancient Lake Creede: Its volcano-tectonic setting, history of sedimentation, and relation to mineralization in the Creede Mining District: Boulder, Colorado, Geological Society of America Special Paper 346, p. 77-93.

Colman, S.M., King, J.W., Jones, G.A., Reynolds, R.L., and Bothner, M.H., 2000, Holocene and recent sediment accumulation rates in southern Lake Michigan: Quaternary Science Reviews, v. 19, p. 1563-1580.

Reynolds, R.L., Rosenbaum, J.G., van Metre, P., Tuttle, M., Callender, E., and Goldin, A., 1999, Greigite (Fe3S4) as an indicator of drought - The 1912-1994 sediment magnetic record from White Rock Lake, Dallas, Texas, USA: Journal of Paleolimnology, v. 21, p. 193-206.

Cathcart, J.D., Reynolds, R.L., Brownfield, M., and Hower, J., 1997, Chemical, mineralogical, and magnetic characterization of sized fly ash from a coal-fired power plant in Kentucky: Proceedings of the 1997 International Ash Utilization Symposium, Lexington, Kentucky, p. 785-792.

Reynolds, R.L., Dettinger, M., Cayan, D., Stephens, D., and Highland, L., 1997, Effects of El Niño on streamflow, lake level, and landslide potential:

Reynolds, R.L., Goldhaber, M.B., and Snee, L., 1997, Paleomagnetic and 40Ar/39Ar results from the Grant intrusive breccia and comparison to the Permian Downeys Bluff sill-Evidence for Permian igneous activity at Hicks dome, southern Illinois basin: U.S. Geological Survey Bulletin 2094-G, 16 p.

Rosenbaum, J.G., Reynolds, R.L., Adam, D.P., Drexler, J., Sarna-Wojcicki, A.M., and Whitney, G.C., 1996, A middle Pleistocene climate record from Buck Lake, southern Oregon--evidence from sediment magnetism, trace-element geochemistry, and pollen: Geological Society of America Bulletin, v. 108, p. 1328-1341.

Roberts, A., Reynolds, R.L., Adam, D., and Verosub, K.L., 1996, Environmental magnetic implications of greigite (Fe3S4) formation in a 3 m.y. lake sediment record from Butte Valley, northern California: Geophysical Research Letters, v. 23, p. 2859-2862.

Reynolds, R.L., and King, J.W., 1995, Magnetic records of climate change: Reviews of Geophysics, U.S. National Report to International Union of Geodesy and Geophysics 1991-1994, p. 101-110.

Reynolds, R.L., Tuttle, M.L., Rice, C., Fishman, N.S., Karachewski, J.A., and Sherman, D., 1994, Magnetization and geochemistry of greigite-bearing Cretaceous strata, North Slope basin, Alaska: American Journal of Science, v. 294, p. 485-528.

Banerjee, S. and Reynolds, R.L., 1993, Role of chemical change in the paleomagnetic record: EOS Transactions American Geophysical Union, v. 73, p. 519-520.

Reynolds, R.L., Goldhaber, M.B., and Tuttle, M.L., 1993, Sulfidization and magnetization above hydrocarbon reservoirs, in Aissaoui, D.M., McNeill, D.F., and Hurley, N.F., Applications of paleomagnetism to sedimentary geology: SEPM Special Publication No. 49, p. 167-179.

Sweetkind, D.S., Reynolds, R.L., Sawyer, D.A., and Rosenbaum, J.G., 1992, Effects of hydrothermal alteration on magnetization of the Oligocene Carpenter Ridge Tuff, Bachelor caldera, San Juan Mountains, Colorado: Journal of Geophysical Research, v. 98, p. 6255-6266.

Goldhaber, M.B., and Reynolds, R.L., 1991, Relations among hydrocarbon reservoirs, epigenetic sulfidization, and rock magnetization--examples from the South Texas coastal plain: Geophysics, v. 56, p. 748 757.

Phillips, J.D., Reynolds, R.L., and Frey, Herbert, 1991, Crustal structure from surface and satellite magnetic anomalies: Reviews of Geophysics, Supplement; U.S. National Report to International Union of Geodesy and Geophysics, 1987-1990, p. 416-442.

Reynolds, R.L., Fishman, N.S., and Hudson, M.R., 1991, Sources of aeromagnetic anomalies over Cement oil field (Oklahoma), Simpson oil field (Alaska), and the Wyoming-Idaho-Utah thrust belt: Geophysics, v. 56, p. 606-617.

Reynolds, R.L., Rosenbaum, J.G., Hudson, M.R., and Fishman, N.S., 1990, Rock magnetism, the distribution of magnetic minerals in the Earth's crust, and aeromagnetic anomalies, in Hanna, W.F., ed., Geologic Applications of Modern Aeromagnetic Surveys: U.S. Geological Survey Bulletin 1924, p. 24-45.

Reynolds, R.L., Webring, M.W., Grauch, V.J.S., and Tuttle, M., 1990, Magnetic forward models of Cement oil field, Oklahoma, based on rock magnetic, geochemical, and petrologic constraints: Geophysics, v. 55, no. 3, p. 344-353.

Reynolds, R.L., Fishman, N.S., Wanty, R.B., and Goldhaber, M.B., 1990, Iron sulfide minerals at Cement oil field, Oklahoma--Implications for the magnetic detection of oil fields: Geological Society of America Bulletin, v. 102, p. 368-378.

Goldhaber, M.B., Reynolds, R.L., Campbell, J.A., Wanty, R., Grauch, R.I., and Northrop, R., 1990, Genesis of the tabular-type vanadium-uranium deposits of the Henry basin, Utah:  Part II Mechanisms of ore and gangue mineral formation at the interface between brine and meteoric water: Economic Geology, v. 85, p. 236-250.


 Selected publications before 1990

Hudson, M.R., Reynolds, R.L., and Fishman, N.S., 1989, Synfolding magnetizations in the Jurassic Preuss Sandstone, Wyoming-Idaho-Utah thrust belt: Journal Geophysical Research, v. 94, p. 13,681-13,705. 

Fishman, N.S., Reynolds, R.L., and Hudson, M.R., 1989, Source of anomalous magnetization in an area of hydrocarbon potential--Petrologic evidence from the Jurassic Preuss Sandstone, Wyoming-Idaho thrust belt: American Association Petroleum Geologists Bulletin, v. 73, p. 182-194.

Reynolds, R.L., Hudson, M.R., and Hon, Ken, 1986, Paleomagnetic evidence for the timing of collapse and resurgence of the Lake City caldera, San Juan Mountains, Colorado: Journal Geophysical Research, v. 91, p. 9599-9613.

Northrop, H.R., Goldhaber, M.B., Whitney, C.G., Peterson, F., Reynolds, R.L., and Campbell, J.L., 1986, Diagenesis and the sources of the ore-forming fluids, Tony M vanadium-uranium deposit, Henry structural basin, Utah, in Mumpton, F.A., ed., Studies in Diagenesis: U.S. Geological Survey Bulletin 1578, p. 281-290.

Reynolds, R.L., Fishman, N.S., Scott, J.H., and Hudson, M.R.,1986, Iron-titanium oxide minerals and magnetic susceptibility anomalies in the Mariano Lake-Lake Valley cores:  constraints on conditions of uranium mineralization in the Morrison Formation, San Juan Basin, New Mexico, in Turner-Peterson, C.E., Santos, E.S., and Fishman, N.S., eds., A basin analysis case study-The Morrison Formation, Grants uranium region, New Mexico: American Association Petroleum Geologists, Studies in Geology no. 22, p. 303-313.

Fishman, N.S. and Reynolds, R.L., 1986, Origin of the Mariano Lake uranium deposit, McKinley County, New Mexico, in Turner-Peterson, C.E., Santos, E.S., and Fishman, N.S., eds., A basin analysis case study--The Morrison Formation, Grants uranium region, New Mexico: American Association Petroleum Geologists, Studies in Geology No. 22, p. 211-226.

Fishman, N.S., and Reynolds, R.L., 1986, Diagenesis in the Morrison Formation, Smith Lake uranium district, McKinley County, New Mexico, in Mumpton, F.A., ed., Studies in Diagenesis: U.S. Geological Survey Bulletin 1578, p. 249-263. 

Reynolds, R.L., Hudson, M.R., Fishman, N.S., and Campbell, J.A., 1985, Paleomagnetic and petrologic evidence bearing on the age and origin of uranium deposits in the Permian Cutler Formation, Lisbon Valley, Utah: Geological Society of America Bulletin, v. 96, p. 719-730.

Hoblitt, R.P., Reynolds, R.L., and Larson, E.E., 1985, Suitability of nonwelded pyroclastic-flow deposits for studies of magnetic secular variation--A test based on deposits emplaced at Mount St. Helens, Washington, in 1980: Geology, v. 13, p. 242-245.

Fishman, N.S., Reynolds, R.L., and Robertson, J.F., 1985, Uranium mineralization in the Smith Lake district of the Grants uranium region, New Mexico: Economic Geology, v. 80, p. 1348‑1364.

Goldhaber, M.B., Wanty, R.B., Chatham, J.R., Reynolds, R.L., and Langmuir, D., 1983, The interaction of subsurface brines with oxygenated meteoric waters in the genesis of the Ray Point uranium district, Texas, USA: Sciences Geologiques, Memoirs, v. 73, p. 143-151.

Reynolds, R.L., and Goldhaber, M.B., 1983, Iron disulfide minerals and the genesis of roll-type uranium deposits: Economic Geology, v. 78, p. 105-120. 

Kellogg, K.S. and Reynolds, R.L., 1983, Opening of the Red Sea:  Constraints from a paleomagnetic study of the As Sarat volcanic field, southwestern Saudi Arabia: Geophysical Journal of the Royal Astronomical Society, v. 74, no. 3, p. 649-666. 

Goldhaber, M.B., Reynolds, R.L., and Rye, R.O., 1983, Role of fluid mixing and fault related sulfide in the origin of the Ray Point uranium district, south Texas: Economic Geology, v. 78, no. 6, p. 1043‑1063.

Ludwig, K.R., Rubin, Bruce, Fishman, N.S., and Reynolds, R.L., 1982, U-Pb ages of uranium ores in the Church Rock uranium district, New Mexico: Economic Geology, v. 77, p. 1942‑1944.

Reynolds, R.L., 1982, Paleomagnetic research in Egypt, 1982: U.S. Geological Survey Egyptian Investigations (IR) EG-22, 12 p

Reynolds, R.L., 1982, Post-depositional alteration of titanomagnetite in a Miocene sandstone, south Texas, USA: Earth and Planetary Science Letters, v. 61, no. 2, p. 381-391.

Reynolds, R.L., Goldhaber, M.B., and Carpenter, D.J., 1982, Biogenic and non-biogenic ore-forming processes in the south Texas uranium district:  Evidence from the Panna Maria deposit: Economic Geology, v. 77, p. 541-556. 

Olhoeft, G.R., Reynolds, R.L., and others, 1982, Physical properties of the June 1980 dacite dome in Lipman, P.W. and Mullineaux, D.R., eds., The 1980 eruptions of Mount St. Helens, Washington: U.S. Geological Survey Professional Paper 1250, p. 549-556.

Kuntz, M.A., Rowley, P.D., MacLeod, N.S., Reynolds, R.L., and others, 1982, Petrography and particle-size distribution of pyroclastic-flow, ash-cloud, and surge deposits in Lipman, P. W. and Mullineaux, D. R., eds., The 1980 eruptions of Mount St Helens, Washington: U.S. Geological Survey Professional Paper 1250, p. 525-539. 

Ludwig, K.R., Goldhaber, M.B., Reynolds, R.L., and Simmons, K.R., 1982, U-Pb isotope isochron age, and preliminary sulfur isotope systematics of the Felder uranium deposit, south Texas: Economic Geology, v. 77, p. 557-563. 

Reynolds, R.L., 1981, Paleomagnetics program for Egypt: U.S. Geological Survey Egyptian Investigations IR (EG-17), 5 p.

Ford, A.B., Reynolds, R.L., Huie, C., and Boyer, S.J., 1980, Geological investigation of the Dufek intrusion, Pensacola Mountains, Antarctica: Antarctic Journal U.S., v. 14, no. 5, p. 9‑11.

Reynolds, R.L., 1979, Comparison of the TRM of the Yellowstone Group and the DRM of some Pearlette ash beds: Journal Geophysical Research, v. 84, p. 4525-4532.

Goldhaber, M.B., Reynolds, R.L., and Rye, R.O., 1978, Origin of a south Texas roll-type uranium deposit--II Sulfide petrology and sulfur isotope studies: Economic Geology, v. 73, p. 1690‑1705. 

Kellogg, K.S., and Reynolds, R.L., 1978, Paleomagnetic results from the Lassiter Coast, Antarctica, and a test for oroclinal bending of the Antarctic Peninsula: Journal Geophysical Research, v. 83, p. 2293‑2299. 

Reynolds, R.L., and Goldhaber, M.B., 1978, Origin of a south Texas roll-type uranium deposit--I.  Alteration of iron-titanium oxide minerals: Economic Geology, v. 73, p. 1677-1689.

Reynolds, R.L., 1977, Paleomagnetism of welded tuffs of the Yellowstone Group: Journal Geophysical Research, v. 82, p. 3677-3693.

Reynolds, R.L., 1977, Magnetic titanohematite minerals in uranium-bearing sandstones: U.S. Geological Survey Open-File Report 77-355, 21 p.

Larson, E.E., Reynolds, R.L., and others, 1975, Major element petrochemistry of some extrusive rocks from the volcanically active Mariana Islands: Bulletin Volcanologique, v. 39, p. 361-377.

Larson, E.E., Reynolds, R.L., and others, 1975, Paleomagnetism of Miocene volcanics of Guam and the curvature of the southern Mariana Island Arc: Geological Society America Bulletin, v. 86, p. 346‑350.

Levi, S., Merrill, R.T., Larson, E.E., Reynolds, R.L., and others, 1975, Paleosecular variation of lavas from the Marianas in the Western Pacific Ocean: Journal Geomagnetism and Geoelectricity, v. 27, p. 57-66.

Rowley, P.D., Williams, P.L., Schmidt, D.L., Reynolds, R.L., and others, 1975, Copper mineralization along the Lassiter Coast of the Antarctic Peninsula: Economic Geology, v. 70, p. 982‑992.