Kate Campbell
Kate Campbell is a research biogeochemist specializing in microbial and abiotic metal redox cycling, mineralogy, and modeling in natural and mine-influenced waters.
Kate Campbell started her career with the USGS with the volunteer for science program as a high school student interested in the water quality of Boulder Creek, CO. After majoring in chemistry in college, she pursued a Ph.D. at Catech studying the biogeochemistry of arsenic redox transformations in reservoir sediments. She returned to the USGS as a National Research Council postdoctoral fellow in 2007 in Menlo Park, CA, researching uranium bioremediation in shallow contaminated aquifers. Currently, she is a research chemist in Denver, CO. Her research projects include understanding the biogeochemistry and mineralogy of metals and metalloids in mine-impacted waters, particularly in acid rock drainage and uranium-contaminated water. She also studies microbial kinetics of iron, arsenic, and antimony oxidation in acid mine drainage, and how to incorporate microbial kinetics in reactive transport models for field-scale application as a tool for site managers.
Education and Certifications
Ph.D. – California Institute of Technology, Environmental Science and Engineering, Pasadena, CA, 2006
M.S. – California Institute of Technology, Environmental Science and Engineering, Pasadena, CA, 2003
B.S. – Georgetown University, Chemistry major (summa cum laude), Japanese language minor, Washington, D.C., 2001
Science and Products
Field and Laboratory data of pipe scale forming in acid mine drainage pipelines at Iron Mountain and Leviathan Mines, California
Biogenic non-crystalline U(IV) revealed as major component in uranium ore deposits
Mineralization dynamics of metakaolin-based alkali-activated cements
Filamentous hydrous ferric oxide biosignatures in a pipeline carrying acid mine drainage at Iron Mountain Mine, California
Biogeochemical controls of uranium bioavailability from the dissolved phase in natural freshwaters
Persistent U(IV) and U(VI) following in-situ recovery (ISR) mining of a sandstone uranium deposit, Wyoming, USA
From extreme pH to extreme temperature: An issue in honor of the geochemical contributions of Kirk Nordstrom, USGS hydrogeochemist
Biogeochemical aspects of uranium mineralization, mining, milling, and remediation
Modeling low-temperature geochemical processes:
Biogenic iron mineralization at Iron Mountain, CA with implications for detection with the Mars Curiosity rover
Arsenic speciation and sorption in natural environments
Uranium redox transition pathways in acetate-amended sediments
Evaluating chemical extraction techniques for the determination of uranium oxidation state in reduced aquifer sediments
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
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Field and Laboratory data of pipe scale forming in acid mine drainage pipelines at Iron Mountain and Leviathan Mines, California
Pipelines carrying acid mine drainage at Iron Mountain and Leviathan Mines (CA, USA) develop pipe scale, a precipitate that forms inside the pipelines. The U.S. Geological Survey is studying the composition of the pipe scale and the acid mine drainage water flowing through the pipeline through field samples and laboratory experimentation. This data release provides the data from the studies of the - Publications
Filter Total Items: 32
Biogenic non-crystalline U(IV) revealed as major component in uranium ore deposits
Historically, it is believed that crystalline uraninite, produced via the abiotic reduction of hexavalent uranium (U(VI)) is the dominant reduced U species formed in low-temperature uranium roll-front ore deposits. Here we show that non-crystalline U(IV) generated through biologically mediated U(VI) reduction is the predominant U(IV) species in an undisturbed U roll-front ore deposit in Wyoming, UAuthorsAmrita Bhattacharyya, Kate M. Campbell, Shelly Kelly, Yvonne Roebbert, Stefan Weyer, Rizlan Bernier-Latmani, Thomas BorchMineralization dynamics of metakaolin-based alkali-activated cements
This paper investigates the early-age dynamics of mineral formation in metakaolin-based alkali-activated cements. The effects of silica availability and alkali content on mineral formation were investigated via X-ray diffraction and solid-state 29Si magic-angle spinning nuclear magnetic resonance spectroscopy at 2, 7, 14, and 28 days. Silica availability was controlled by using either liquid- (immAuthorsJuan Pablo Gevaudan, Kate M. Campbell, Tyler Kane, Richard K. Shoemaker, Wil V. SrubarFilamentous hydrous ferric oxide biosignatures in a pipeline carrying acid mine drainage at Iron Mountain Mine, California
A pipeline carrying acidic mine effluent at Iron Mountain, CA, developed Fe(III)-rich precipitate caused by oxidation of Fe(II)aq. The native microbial community in the pipe included filamentous microbes. The pipe scale consisted of microbial filaments, and schwertmannite (ferric oxyhydroxysulfate, FOHS) mineral spheres and filaments. FOHS filaments contained central lumina with diameters similarAuthorsAmy J. Williams, Charles N. Alpers, Dawn Y. Sumner, Kate M. CampbellBiogeochemical controls of uranium bioavailability from the dissolved phase in natural freshwaters
To gain insights into the risks associated with uranium (U) mining and processing, we investigated the biogeochemical controls of U bioavailability in the model freshwater speciesLymnaea stagnalis (Gastropoda). Bioavailability of dissolved U(VI) was characterized in controlled laboratory experiments over a range of water hardness, pH, and in the presence of complexing ligands in the form of dissolAuthorsMarie-Noële Croteau, Christopher C. Fuller, Daniel J. Cain, Kate M. Campbell, George R. AikenPersistent U(IV) and U(VI) following in-situ recovery (ISR) mining of a sandstone uranium deposit, Wyoming, USA
Drill-core samples from a sandstone-hosted uranium (U) deposit in Wyoming were characterized to determine the abundance and distribution of uranium following in-situ recovery (ISR) mining with oxygen- and carbon dioxide-enriched water. Concentrations of uranium, collected from ten depth intervals, ranged from 5 to 1920 ppm. A composite sample contained 750 ppm uranium with an average oxidation stAuthorsTanya J. Gallegos, Kate M. Campbell, Robert A. Zielinski, P.W. Reimus, J.T. Clay, N. Janot, J. J. Bargar, William BenzelFrom extreme pH to extreme temperature: An issue in honor of the geochemical contributions of Kirk Nordstrom, USGS hydrogeochemist
This special issue of Applied Geochemistry honors Dr. D. Kirk Nordstrom, and his influential career spent primarily at the U.S. Geological Survey (USGS). This issue does not herald his retirement or other significant career milestone, but serves as a recognition of the impact his work has had on the field of geochemistry in general. This special issue grew from a symposium in Kirk’s honor (affectiAuthorsKate M. Campbell, Philip L. Verplanck, R. Blaine McCleskey, Charles N. AlpersBiogeochemical aspects of uranium mineralization, mining, milling, and remediation
Natural uranium (U) occurs as a mixture of three radioactive isotopes: 238U, 235U, and 234U. Only 235U is fissionable and makes up about 0.7% of natural U, while 238U is overwhelmingly the most abundant at greater than 99% of the total mass of U. Prior to the 1940s, U was predominantly used as a coloring agent, and U-bearing ores were mined mainly for their radium (Ra) and/or vanadium (V) content;AuthorsKate M. Campbell, Tanya J. Gallegos, Edward R. LandaModeling low-temperature geochemical processes:
This chapter provides an overview of geochemical modeling that applies to water–rock interactions under ambient conditions of temperature and pressure. Topics include modeling definitions, historical background, issues of activity coefficients, popular codes and databases, examples of modeling common types of water–rock interactions, and issues of model reliability. Examples include speciation, miAuthorsD. Kirk Nordstrom, Kate M. CampbellBiogenic iron mineralization at Iron Mountain, CA with implications for detection with the Mars Curiosity rover
(Introduction) Microbe-mineral interactions and biosignature preservation in oxidized sulfidic ore bodies (gossans) are prime candidates for astrobiological study. Such oxidized iron systems have been proposed as analogs for some Martian environments. Recent studies identified microbial fossils preserved as mineral-coated filaments. This study documents microbially-mediated mineral biosignatures iAuthorsAmy J. Williams, Dawn Y. Sumner, Charles N. Alpers, Kate M. Campbell, D. Kirk NordstromArsenic speciation and sorption in natural environments
Aqueous arsenic speciation, or the chemical forms in which arsenic exists in water, is a challenging, interesting, and complicated aspect of environmental arsenic geochemistry. Arsenic has the ability to form a wide range of chemical bonds with carbon, oxygen, hydrogen, and sulfur, resulting in a large variety of compounds that exhibit a host of chemical and biochemical properties. Besides the intAuthorsKate M. Campbell, D. Kirk NordstromUranium redox transition pathways in acetate-amended sediments
Redox transitions of uranium [from U(VI) to U(IV)] in low-temperature sediments govern the mobility of uranium in the environment and the accumulation of uranium in ore bodies, and inform our understanding of Earth’s geochemical history. The molecular-scale mechanistic pathways of these transitions determine the U(IV) products formed, thus influencing uranium isotope fractionation, reoxidation, anAuthorsJohn R. Bargar, Kenneth H. Williams, Kate M. Campbell, Philip E. Long, Joanne E. Stubbs, Elenal I. Suvorova, Juan S. Lezama-Pacheco, Daniel S. Alessi, Malgorzata Stylo, Samuel M. Webb, James A. Davis, Daniel E. Giammar, Lisa Y. Blue, Rizlan Bernier-LatmaniEvaluating chemical extraction techniques for the determination of uranium oxidation state in reduced aquifer sediments
Extraction techniques utilizing high pH and (bi)carbonate concentrations were evaluated for their efficacy in determining the oxidation state of uranium (U) in reduced sediments collected from Rifle, CO. Differences in dissolved concentrations between oxic and anoxic extractions have been proposed as a means to quantify the U(VI) and U(IV) content of sediments. An additional step was added to anoxAuthorsDeborah L. Stoliker, Kate M. Campbell, Patricia M. Fox, David M. Singer, Nazila Kaviani, Minna Carey, Nicole E. Peck, John R. Barger, Douglas B. Kent, James A. DavisNon-USGS Publications**
Borch, T., Campbell, KM., Kretzchmar, R. “Guest comment: How electron flow controls contaminant dynamics,” Environmental Science and Technology, 44, 3-6, 2010.Campbell ,K.M., and Hering, J.G. “Biogeochemical Mechanisms of Arsenic Mobilization.”Chapter in Arsenic Contamination of Groundwater: Mechanism, Analysis, and Remediation, S. Ahuja, editor. New Jersey: J.S.Wiley & Sons, 2008Campbell, K.M , Root, R., O’Day, P.A. and Hering, J.G. “A Gel Probe Equilibrium Sampler for Measuring Arsenic Porewater Profiles and Sorption Gradients in Sediments: I. Laboratory Development”, Environmental Science and Technology, 42 (2) 497–503, 2008.Campbell, K.M , Root, R., O’Day, P.A. and Hering, J.G. “A Gel Probe Equilibrium Sampler for Measuring Arsenic Porewater Profiles and Sorption Gradients in Sediments: II. Field Application to Haiwee Reservoir Sediment”, Environmental Science and Technology, 42 (2) 504-510, 2008.Campbell, K.M., “Biogeochemical Mechanisms of Arsenic Mobilization in Haiwee Reservoir Sediments,” Ph.D. Dissertation, California Institute of Technology, 2007Root, R., Dixit, S., Campbell, K.M. , Jew, A. , Hering, J.G. and O’Day, P.A.. “Mechanism of Arsenic Sequestration in High-Iron Sediments”, Geochimica et Cosmochimica Acta, 71 (23) 5782-5803, 2007.Campbell, K.M. , Malasarn, D. , Saltikov, C.W., Newman, D.K. and Hering, J.G.. “Simultaneous Microbial Reduction of Iron(III) and Arsenic (V) in Suspensions of Hydrous Ferric Oxide”. Environmental Science and Technology 40 (19) 5950-5955, 2006.Campbell, K.M, Dixit, S. and Hering. J.G.. “Use of a gel robe sampling device to examine porewater profiles and the effects of porewater composition on As sorption in sediments”, Water-Rock Interaction Proceedings, Wanty & Seal II, ed. 2004.Malasarn, D.M. , Saltikov, C.W., Campbell, K.M., Hering, J.G., Santini, J. , and Newman, D.K. “arrA as a reliable marker for As(V) respiration”, Science 306 (5695): 455-455 October 15 2004.**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.