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YearPublication
2014Andraski, B.J., Jackson, W.A., Welborn, T.L., Böhlke, J.K., and Stonestrom, D.A., 2014, Soil, plant, and terrain effects on natural perchlorate distribution in a desert landscape. Journal of Environmental Quality, v. 43, p. 980-994. [get publication]
2013Coupe, R.H., Goolsby, D.A, Battaglin, W.A., Böhlke, J.K., McMahon, P.B., Kendall, C. (2013) The transport of nitrate in the Mississippi River in July-August 1999. Annals of Environmental Science, 7: 31-46.
2013Evenson, E.J., Orndorff, R.C., Blome, C.D., Böhlke, J.K., Hershberger, P.K., Langenheim, V.E., McCabe, G.J., Morlock, S.E., Reeves, H.W., Verdin, J.P., Weyers, H.S., and Wood, T.M., 2013, U.S. Geological Survey water science strategy—Observing, understanding, predicting, and delivering water science to the nation. U.S. Geological Survey Circular 1383-G, Reston, 49 p. [get publication]
2013Harvey, J.W., Böhlke, J.K., Voytek, M.A., Scott, D.T., Tobias, C.R., 2013. Hyporheic zone denitrification: Controls on effective reaction depth and contribution to whole-stream mass balance. Water Resources Research, v. 49, p. 6298-6316. [get publication]
2013Hatzinger, P.B., Böhlke, J.K., and Sturchio, N.C., 2013, Application of stable isotope ratio analysis for biodegradation monitoring in groundwater. Current Opinion in Biotechnology, v. 24(3), p. 542–549. [get publication]
2013Wieser, M.E., Holden, N., Coplen, T.B., Böhlke, J.K., Berglund, M. , Brand, W.A., De Bièvre, P., Gröning, M., Loss, R.D., Meija, J., Hirata, T., Prohaska, T., Schönberg, R., Singleton, G., Walczyk, T., Yoneda, S., and Zhu, X., 2013, Atomic weights of the elements 2011 (IUPAC Technical Report). Pure and Applied Chemistry, v. 85, p. 1047-1078. [get publication]
2012Eberts, S, Böhlke, J, Kauffman, L, and Jurgens, B, 2012, Comparison of particle-tracking and lumped-parameter age-distribution models for evaluating vulnerability of production wells to contamination: Hydrogeology Journal, v. 20, iss. 2, p. 263-282. [get publication]
2012Evenson, E.J., Orndorff, R.C., Blome, C.D., Böhlke, J.K., Hershberger, P.K., Langenheim, V.E., McCabe, G.J., Morlock, S.E., Reeves, H.W., Verdin, J.P., Weyers, H.S., and Wood, T.M., 2012, Strategic directions for U.S. Geological Survey water science, 2012–2022—Observing, understanding, predicting, and delivering water science to the Nation. U.S. Geological Survey, Open-File Report 2012-1066, 42 p. [get publication]
2012Harte, P. T., Ayotte, J. D., Hoffman, A., Révész, K. M., Belaval, M. Lamb, S., Böhlke, J. K. 2012, Heterogeneous redox conditions, arsenic mobility, and groundwater flow in a fractured-rock aquifer near a waste repository site in New Hampshire, USA: Hydrogeology Journal, Online First™, 28 April 2012, DOI 10.1007/s10040-012-0844-4. [get publication]
2012Jurgens, B.C., Böhlke, J.K., and Eberts, S.M., 2012, TracerLPM (Version 1): An Excel® workbook for interpreting groundwater age distributions from environmental tracer data. U.S. Geological Survey Techniques and Methods Report 4-F3, 60 p. [get publication]
2012Liao, Lixia, Green, Christopher T, Bekins, Barbara A, and Böhlke, J K, 2012, Factors controlling nitrate fluxes in groundwater in agricultural areas: Water Resources Research, v. 48, iss. null. [get publication]
2011Cozzarelli, I.m., Böhlke, J.k., Masoner, J, Breit, G.n., Lorah, M.m., Tuttle, M.l.w., and Jaeschke, J.b., 2011, Biogeochemical Evolution of a Landfill Leachate Plume, Norman, Oklahoma: Ground Water, v. 49, iss. 5, p. 663-687 LA - en. [get publication]
2011Gu, B, Böhlke, J K, Sturchio, N C, Hatzinger, P B, Jackson, W A, Beloso, A D, Heraty, L J, Bian, Y, Jiang, X, and Brown, G M, 2011, Applications of selective ion exchange for perchlorate removal recovery and environmental forensics: Taylor & Francis, v. 20, p. 117-144.
2011Hatzinger, P.B., Böhlke, J.K., Sturchio, N.C., and Gu, B., 2011, Guidance manual for forensic analysis of perchlorate in groundwater using chlorine and oxygen isotopic analyses. U.S. Department of Defense, Environmental Security Technology Certification Program, ESTCP Project ER-200509, 99 p. [get publication]
2011Holden, N E, Coplen, T B, Böhlke, J K, Wieser, M E, Singleton, G, Walczyk, T R, Yoneda, S, Mahaffy, P G, and Tarbox, L V, 2011, IUPAC Periodic Table of the Isotopes: Chemistry International, v. 33, iss. 4.
2011Holloway, JoAnn M, Nordstrom, D Kirk, Böhlke, J K, McCleskey, R Blaine, and Ball, James W, 2011, Ammonium in thermal waters of Yellowstone National Park: Processes affecting speciation and isotope fractionation: Geochimica et Cosmochimica Acta, v. 75, iss. 16, p. 4611-4636. [get publication]
2011McMahon, P, Plummer, L, Böhlke, J, Shapiro, S, and Hinkle, S, 2011, A comparison of recharge rates in aquifers of the United States based on groundwater-age data: Hydrogeology Journal, v. 19, iss. 4, p. 779-800. [get publication]
2011Peters, N E, Böhlke, J K, Brooks, P D, Burt, T P, Gooseff, M N, Hamilton, D P, Mulholland, P J, Roulet, N T, and Turner, J V, 2011, 2.11 - Hydrology and Biogeochemistry Linkages: Elsevier: Oxford, v. 2, p. 271-304. [get publication]
2011Sturchio, N C, Böhlke, J K, Gu, B, Hatzinger, P B, and Jackson, W A, 2011, Isotopic tracing of perchlorate in the environment: Springer-Verlag, p. 437-452.
2011Tobias, Craig, and Böhlke, John Karl, 2011, Biological and geochemical controls on diel dissolved inorganic carbon cycling in a low-order agricultural stream: Implications for reach scales and beyond: Chemical Geology, v. 283, iss. 1–2, p. 18-30. [get publication]
2010Green, Christopher T, Böhlke, John Karl, Bekins, Barbara A, and Phillips, Steven P, 2010, Mixing effects on apparent reaction rates and isotope fractionation during denitrification in a heterogeneous aquifer: Water Resources Research, v. 46, iss. 8. [get publication]
2010Jackson, W Andrew, Böhlke, John Karl, Gu, Baohua, Hatzinger, Paul B, and Sturchio, Neil C, 2010, Isotopic Composition and Origin of Indigenous Natural Perchlorate and Co-Occurring Nitrate in the Southwestern United States: Environmental Science & Technology, v. 44, iss. 13, p. 4869-4876. [get publication]
2010Rao, Balaji, Hatzinger, Paul B, Böhlke, John Karl, Sturchio, Neil C, Andraski, Brian J, Eckardt, Frank D, and Jackson, W Andrew, 2010, Natural Chlorate in the Environment: Application of a New IC-ESI/MS/MS Method with a Cl18O3- Internal Standard: Environmental Science & Technology, v. 44, iss. 22, p. 8429-8434. [get publication]
2009Alexander, Richard, Böhlke, John, Boyer, Elizabeth, David, Mark, Harvey, Judson, Mulholland, Patrick, Seitzinger, Sybil, Tobias, Craig, Tonitto, Christina, and Wollheim, Wilfred, 2009, Dynamic modeling of nitrogen losses in river networks unravels the coupled effects of hydrological and biogeochemical processes: Biogeochemistry, v. 93, iss. 1, p. 91-116. [get publication]
2009Brand, Willi A, Coplen, Tyler B, Aerts-Bijma, Anita T, Böhlke, J K, Gehre, Matthias, Geilmann, Heike, Gröning, Manfred, Jansen, Henk G, Meijer, Harro A J, Mroczkowski, Stanley J, Qi, Haiping, Soergel, Karin, Stuart-Williams, Hilary, Weise, Stephan M, and Werner, Roland A, 2009, Comprehensive inter-laboratory calibration of reference materials for δ18O versus VSMOW using various on-line high-temperature conversion techniques: Rapid Communications in Mass Spectrometry, v. 23, iss. 7, p. 999-1019 LA - en. [get publication]
2009Bratton, John F, Böhlke, John Karl, Krantz, David E, and Tobias, Craig R, 2009, Flow and geochemistry of groundwater beneath a back-barrier lagoon: The subterranean estuary at Chincoteague Bay, Maryland, USA: Marine Chemistry, v. 113, iss. 1–2, p. 78-92. [get publication]
2009Böhlke, John Karl, Hatzinger, Paul B, Sturchio, Neil C, Gu, Baohua, Abbene, Irene, and Mroczkowski, Stanley J, 2009, Atacama Perchlorate as an Agricultural Contaminant in Groundwater: Isotopic and Chronologic Evidence from Long Island, New York: Environmental Science & Technology, v. 43, iss. 15, p. 5619-5625. [get publication]
2009Böhlke, John Karl, and Michel, Robert L, 2009, Contrasting residence times and fluxes of water and sulfate in two small forested watersheds in Virginia, USA: Science of The Total Environment, v. 407, iss. 14, p. 4363-4377. [get publication]
2009Böhlke, John, Antweiler, Ronald, Harvey, Judson, Laursen, Andrew, Smith, Lesley, Smith, Richard, and Voytek, Mary, 2009, Multi-scale measurements and modeling of denitrification in streams with varying flow and nitrate concentration in the upper Mississippi River basin, USA: Biogeochemistry, v. 93, iss. 1, p. 117-141. [get publication]
2009De Laeter, J R, Böhlke, J K, De Bièvre, P, Hidaka, H, Peiser, H S, Rosman, K J R, and Taylor, P D P, 2009, Erratum: Atomic weights of the elements: Review 2000 (IUPAC Technical Report) (Pure and Applied Chemistry (2003) 75 (683-800) DOI: 10.1351/pac200375060683)): Pure and Applied Chemistry, v. 81, iss. 8, p. 1535-1536.
2009Hatzinger, P B, Böhlke, J K, Sturchio, N C, Gu, B, Heraty, L J, and Borden, R C, 2009, Fractionation of stable isotopes in perchlorate and nitrate during in situ biodegradation in a sandy aquifer: Environmental Chemistry, v. 6, iss. 1, p. 44-52. [get publication]
2009Lorah, Michelle M, Cozzarelli, Isabelle M, and Böhlke, J K, 2009, Biogeochemistry at a wetland sediment–alluvial aquifer interface in a landfill leachate plume: Journal of Contaminant Hydrology, v. 105, iss. 3–4, p. 99-117. [get publication]
2009Smith, Richard, Böhlke, John, Repert, Deborah, and Hart, Charles, 2009, Nitrification and denitrification in a midwestern stream containing high nitrate: in situ assessment using tracers in dome-shaped incubation chambers: Biogeochemistry, v. 96, iss. 1, p. 189-208. [get publication]
2009Sturchio, Neil C, Caffee, Marc, Beloso, Abelardo D, Heraty, Linnea J, Böhlke, John Karl, Hatzinger, Paul B, Jackson, W Andrew, Gu, Baohua, Heikoop, Jeffrey M, and Dale, Michael, 2009, Chlorine-36 as a Tracer of Perchlorate Origin: Environmental Science & Technology, v. 43, iss. 18, p. 6934-6938. [get publication]
2009Tobias, Craig R., Böhlke, John Karl, Harvey, Judson W., and Busenberg, Eurybiades, 2009, A simple technique for continuous measurement of time-variable gas transfer in surface waters: Limnology and Oceanography: Methods, v. 7, p. 185-195. [get publication]
2008Campbell, D H, Nanus, L, Böhlke, J K, Harlin, K, and Collett, J, 2008, Nitrogen saturation in the Rocky Mountains: Linking emissions, deposition, and ecosystem effects using stable isotopes of nitrogen compounds: p. 2138-2144.
2008Gates, John B, Böhlke, John Karl, and Edmunds, W Mike, 2008, Ecohydrological Factors Affecting Nitrate Concentrations in a Phreatic Desert Aquifer in Northwestern China: Environmental Science & Technology, v. 42, iss. 10, p. 3531-3537. [get publication]
2008Green, C T, Puckett, L J, Böhlke, J K, Bekins, B A, Phillips, S P, Kauffman, L J, Denver, J M, and Johnson, H M, 2008, Limited occurrence of denitrification in four shallow aquifers in agricultural areas of the United States: Journal of Environmental Quality, v. 37, p. 994-1009.
2008Hannon, Janet E, Böhlke, John Karl, and Mroczkowski, Stanley J, 2008, Effects of nitrate and water on the oxygen isotopic analysis of barium sulfate precipitated from water samples: Rapid Communications in Mass Spectrometry, v. 22, iss. 24, p. 4109-4120 LA - en. [get publication]
2008Hannon, Janet E, and Bohlke, John Karl, 2008, Determination of the delta(15N/14N)of Ammonium (NH4+) in Water: RSIL Lab Code 2898: U.S. Geological Survey. [get publication]
2008Hinkle, Stephen R, Böhlke, J K, and Fisher, Lawrence H, 2008, Mass balance and isotope effects during nitrogen transport through septic tank systems with packed-bed (sand) filters: Science of The Total Environment, v. 407, iss. 1, p. 324-332. [get publication]
2008McMahon, P B, Burow, K R, Kauffman, L J, Eberts, S M, Böhlke, J K, and Gurdak, J J, 2008, Simulated response of water quality in public supply wells to land use change: Water Resources Research, v. 44, iss. 7. [get publication]
2008McMahon, P B, Böhlke, J K, Kauffman, L J, Kipp, K L, Landon, M K, Crandall, C A, Burow, K R, and Brown, C J, 2008, Source and transport controls on the movement of nitrate to public supply wells in selected principal aquifers of the United States: Water Resources Research, v. 44, iss. 4. [get publication]
2007Böhlke, J K, O'Connell, Michael E, and Prestegaard, Karen L, 2007, Ground water stratification and delivery of nitrate to an incised stream under varying flow conditions: Journal of environmental quality, v. 36, iss. 3, p. 664-680. [get publication]
2007Böhlke, John Karl, Smith, Richard L, and Hannon, Janet E, 2007, Isotopic Analysis of N and O in Nitrite and Nitrate by Sequential Selective Bacterial Reduction to N2O: Analytical Chemistry, v. 79, iss. 15, p. 5888-5895. [get publication]
2007Böhlke, John Karl, Verstraeten, Ingrid M, and Kraemer, Thomas F, 2007, Effects of surface-water irrigation on sources, fluxes, and residence times of water, nitrate, and uranium in an alluvial aquifer: Applied Geochemistry, v. 22, iss. 1, p. 152-174. [get publication]
2007Casciotti, Karen L, Böhlke, John Karl, McIlvin, Matthew R, Mroczkowski, Stanley J, and Hannon, Janet E, 2007, Oxygen Isotopes in Nitrite: Analysis, Calibration, and Equilibration: Analytical Chemistry, v. 79, iss. 6, p. 2427-2436. [get publication]
2007Hinkle, Stephen R, Böhlke, J K, Duff, John H, Morgan, David S, and Weick, Rodney J, 2007, Aquifer-scale controls on the distribution of nitrate and ammonium in ground water near La Pine, Oregon, USA: Journal of Hydrology, v. 333, iss. 2–4, p. 486-503. [get publication]
2007McMahon, P B, Bohlke, J K, and Carney, C P, 2007, Vertical Gradients in Water Chemistry and Age in the Northern High Plains Aquifer, Nebraska, 2003: United States Geological Survey. [get publication]
2007McMahon, P B, and Böhlke, J K, 2007, Transport -- Linking the chemistry of recharge and the used resource in the High Plains Aquifer; chapter 2: p. 49-72.
2007Sturchio, Neil C, Böhlke, John Karl, Beloso, A D Jr., Streger, Sheryl H, Heraty, Linnea J, and Hatzinger, Paul B, 2007, Oxygen and Chlorine Isotopic Fractionation during Perchlorate Biodegradation: Laboratory Results and Implications for Forensics and Natural Attenuation Studies: Environmental Science & Technology, v. 41, iss. 8, p. 2796-2802. [get publication]
2007Tobias, Craig R., Böhlke, John Karl, and Harvey, Judson W., 2007, The oxygen-18 isotope approach for measuring aquatic metabolism in high productivity waters: Limnology and Oceanography, v. 52, iss. 4, p. 1439-1453. [get publication]
2007Walker, Richard J, Böhlke, John Karl, McDonough, William F, and Li, Ji, 2007, Effects of Mother Lode-Type Gold Mineralization on 187Os/188Os and Platinum Group Element Concentrations in Peridotite: Alleghany District, California: Economic Geology, v. 102, iss. 6, p. 1079-1089. [get publication]
2006Böhlke, J K, 2006, Tracermodel1- Excel workbook for calculation and presentation of environmental tracer data for simple groundwater mixtures: Use of chlorofluorocarbons in hydrology - a guidebook; Section III.10.3: International Atomic Energy Agency: Vienna, p. 239-243. [get publication]
2006Böhlke, J K, Smith, Richard L, and Miller, Daniel N, 2006, Ammonium transport and reaction in contaminated groundwater: Application of isotope tracers and isotope fractionation studies: Water Resources Research, v. 42, iss. 5. [get publication]
2006Groffman, Peter M, Altabet, Mark A, Böhlke, J K, Butterbach-Bahl, Klaus, David, Mark B, Firestone, Mary K, Giblin, Anne E, Kana, Todd M, Nielsen, Lars Peter, and Voytek, Mary A, 2006, METHODS FOR MEASURING DENITRIFICATION: DIVERSE APPROACHES TO A DIFFICULT PROBLEM: Ecological Applications, v. 16, iss. 6, p. 2091-2122. [get publication]
2006Groffman, Peter M, Altabet, Mark A, Böhlke, J K, Butterbach-Bahl, Klaus, David, Mark B, Firestone, Mary K, Giblin, Anne E, Kana, Todd M, Nielsen, Lars Peter, and Voytek, Mary A, 2006, METHODS FOR MEASURING DENITRIFICATION: DIVERSE APPROACHES TO A DIFFICULT PROBLEM: Ecological Applications, v. 16, iss. 6, p. 2091-2122. [get publication]
2006Hannon, J. E. and Böhlke, J. K. 2006, Determination of the δ(15N/14N) of Ammonium (NH4+) in Water: RSIL Lab Code 2898, chap. 15, of Révész, Kinga, and Coplen, Tyler B., eds., Methods of the Reston Stable Isotope Laboratory: Reston, Virginia, U.S. Geological Survey, Techniques and Methods, book 10, sec. C, chap. 15, p. 31.
2006McMahon, P B, Dennehy, K F, Bruce, B W, Böhlke, J K, Michel, R L, Gurdak, J J, and Hurlbut, D B, 2006, Storage and transit time of chemicals in thick unsaturated zones under rangeland and irrigated cropland, High Plains, United States: Water Resources Research, v. 42, iss. 3. [get publication]
2006McMahon, P B, and Böhlke, J K, 2006, Regional Patterns in the Isotopic Composition of Natural and Anthropogenic Nitrate in Groundwater, High Plains, U.S.A.: Environmental Science & Technology, v. 40, iss. 9, p. 2965-2970. [get publication]
2006Plummer, L Niel, Böhlke, John Karl, and Doughten, Michael W, 2006, Perchlorate in Pleistocene and Holocene Groundwater in North-Central New Mexico: Environmental Science & Technology, v. 40, iss. 6, p. 1757-1763. [get publication]
2006Seitzinger, S, Harrison, J A, Böhlke, J K, Bouwman, A F, Lowrance, R, Peterson, B, Tobias, C, and Drecht, G Van, 2006, DENITRIFICATION ACROSS LANDSCAPES AND WATERSCAPES: A SYNTHESIS: Ecological Applications, v. 16, iss. 6, p. 2064-2090. [get publication]
2006Smith, Lesley K, Voytek, Mary A, Böhlke, John Karl, and Harvey, Judson W, 2006, Denitrification in nitrate-rich streams: application of N2:Ar and 15N-tracer methods in intact cores: Ecological applications: a publication of the Ecological Society of America, v. 16, iss. 6, p. 2191-2207. [get publication]
2006Smith, R, Baumgartner, L, Miller, D, Repert, D, and Böhlke, J, 2006, Assessment of Nitrification Potential in Ground Water Using Short Term, Single-Well Injection Experiments: Microbial Ecology, v. 51, iss. 1, p. 22-35. [get publication]
2006Sturchio, N C, Böhlke, J K, Gu, B, Horita, J, Brown, G M, Jr, Beloso A, Patterson, L J, Hatzinger, P B, Jackson, W A, and Batista, J R, 2006, Stable isotopic composition of chlorine and oxygen in synthetic and natural perchlorate, Chapter 5: Springer: New York, p. 93-109.
2005Antweiler, Ronald C, Smith, Richard L, Voytek, Mary A, Bohlke, John-Karl, and Dupre, David H, 2005, Water-quality data from two agricultural drainage basins in northwestern Indiana and northeastern Illinois: III. biweekly data, 2000-2002: United States Geological Survey. [get publication]
2005Antweiler, Ronald C, Smith, Richard L, Voytek, Mary A, Bohlke, John-Karl, and Richards, Kevin D, 2005, Water-quality data from two agricultural drainage basins in northwestern Indiana and northeastern Illinois: I. Lagrangian and synoptic data, 1999-2002: United States Geological Survey. [get publication]
2005Antweiler, Ronald C, Smith, Richard L, Voytek, Mary A, and Bohlke, John-Karl, 2005, Water-quality data from two agricultural drainage basins in northwestern Indiana and northeastern Illinois: II. diel data, 1999-2001: United States Geological Survey. [get publication]
2005Böhlke, J K, de Laeter, J R, De Bièvre, P, Hidaka, H, Peiser, H S, Rosman, K J R, and Taylor, P D P, 2005, Isotopic Compositions of the Elements, 2001: Journal of Physical and Chemical Reference Data, v. 34, iss. 1, p. 57-67. [get publication]
2005Böhlke, John Karl, Sturchio, Neil C, Gu, Baohua, Horita, Juske, Brown, Gilbert M, Jackson, W Andrew, Batista, Jacimaria, and Hatzinger, Paul B, 2005, Perchlorate Isotope Forensics: Analytical Chemistry, v. 77, iss. 23, p. 7838-7842. [get publication]
2005McMahon, P, Böhlke, J K, Brown, C, Burow, K, Crandall, C, and Landon Czech Republic C3 - Proceedings of the 6th International Symposium on Applied Isotope Geochemistry, Prague, Czech Republic, M C1 - Prague, 2005, Use of isotopes, age-dating, and numerical simulation to evaluate source histories and transport of NO3- to public supply wells in principal aquifers of the United States: AIG-6: p. 157-158.
2004Bratton, John F, Böhlke, John Karl, Manheim, Frank T, and Krantz, David E, 2004, Ground Water Beneath Coastal Bays of the Delmarva Peninsula: Ages and Nutrients: Ground Water, v. 42, iss. 7, p. 1021-1034 LA - en. [get publication]
2004Böhlke, J K, Mroczkowski, S J, and Coplen, T B, 2004, New reference materials for oxygen isotopes in nitrate: Isotope Hydrology and Integrated Water Resources Management: International Atomic Energy Agency: Vienna, p. 477-478.
2004Böhlke, John Karl, Harvey, Judson W., and Voytek, Mary A., 2004, Reach-scale isotope tracer experiment to quantify denitrification and related processes in a nitrate-rich stream, midcontinent United States: Limnology and Oceanography, v. 49, iss. 3, p. 821-838. [get publication]
2004Coplen, T B, Böhlke, J K, and Casciotti, K L, 2004, Using dual-bacterial denitrification to improve δ15N determinations of nitrates containing mass-independent 17O: Rapid Communications in Mass Spectrometry, v. 18, iss. 3, p. 245-250 LA - en. [get publication]
2004McMahon, P B, Bohlke, J K, and Lehman, T M, 2004, Vertical Gradients in Water Chemistry and Age in the Southern High Plains Aquifer, Texas, 2002: United States Geological Survey. [get publication]
2004McMahon, P B, Böhlke, J K, and Christenson, S C, 2004, Geochemistry, radiocarbon ages, and paleorecharge conditions along a transect in the central High Plains aquifer, southwestern Kansas, USA: Applied Geochemistry, v. 19, iss. 11, p. 1655-1686. [get publication]
2004Michalski, Greg, Böhlke, J K, and Thiemens, Mark, 2004, Long term atmospheric deposition as the source of nitrate and other salts in the Atacama Desert, Chile: New evidence from mass-independent oxygen isotopic compositions: Geochimica et Cosmochimica Acta, v. 68, iss. 20, p. 4023-4038. [get publication]
2004Oren, O, Yechieli, Y, Böhlke, J K, and Dody, A, 2004, Contamination of groundwater under cultivated fields in an arid environment, central Arava Valley, Israel: Journal of Hydrology, v. 290, iss. 3–4, p. 312-328. [get publication]
2004Smith, R. L., Böhlke, J. K., Garabedian, S. P., Révész, K. M., and Yoshinari, T. 2004, Assessing Denitrification in Ground Water Using 15N and Natural Gradient Tracer Tests: In Situ Measurement of a Multistep Reactions: Water Resources Research vol. 40, 17 p., W07101, doi: 10.1029. (20 citations).
2004Smith, Richard L, Böhlke, John Karl, Garabedian, Stephen P, Revesz, Kinga M, and Yoshinari, Tadashi, 2004, Assessing denitrification in groundwater using natural gradient tracer tests with 15N: In situ measurement of a sequential multistep reaction: Water Resources Research, v. 40, iss. 7. [get publication]
2003Bohlke, John Karl, and Krantz, David E, 2003, Isotope Geochemistry and Chronology of Offshore Ground Water Beneath Indian River Bay, Delaware: United States Geological Survey. [get publication]
2003Böhlke, J K, 2003, Sources, transport, and reaction of nitrate in ground water, in Lindsey and others: U.S. Geological Survey, p. 25-38.
2003Böhlke, J K, Mroczkowski, S J, and Coplen, T B, 2003, Oxygen isotopes in nitrate: new reference materials for 18O:17O:16O measurements and observations on nitrate-water equilibration: Rapid Communications in Mass Spectrometry, v. 17, iss. 16, p. 1835-1846 LA - en. [get publication]
2003Griggs, Erin M, Kump, Lee R, and Böhlke, J K, 2003, The fate of wastewater-derived nitrate in the subsurface of the Florida Keys: Key Colony Beach, Florida: Estuarine, Coastal and Shelf Science, v. 58, iss. 3, p. 517-539. [get publication]
2003Lindsey, Bruce D, Phillips, Scott W, Donnelly, Colleen A, Speiran, Gary K, Plummer, L Niel, Bohlke, John-Karl, Focazio, Michael J, Burton, William C, and Busenberg, Eurybiades, 2003, Residence times and nitrate transport in ground water discharging to streams in the Chesapeake Bay Watershed: United States Geological Survey. [get publication]
2003Plummer, L N, Böhlke, J K, and Busenberg, E, 2003, Approaches for ground-water dating: U.S. Geological Survey, p. 12-24.
2003Qi, Haiping, Coplen, Tyler B, Geilmann, Heike, Brand, Willi A, and Böhlke, J K, 2003, Two new organic reference materials for δ13C and δ15N measurements and a new value for the δ13C of NBS 22 oil: Rapid Communications in Mass Spectrometry, v. 17, iss. 22, p. 2483-2487 LA - en. [get publication]
2003de Laeter, J R, Böhlke, J K, De Bièvre, P, Hidaka, H, Peiser, H S, Rosman, K J R, and Taylor, P D P, 2003, Atomic weights of the elements. Review 2000 (IUPAC Technical Report): Pure and Applied Chemistry, v. 75, iss. 6, p. 683-799. [get publication]
2002Coplen, T. B., Böhlke, J. K., De Bièvre, P., Ding, T., Holden, N. E., Hopple, J. A., Krouse, H. R., Lamberty, A., Peiser, H. S., Révész, K. M., Rieder, S. E., Rosman, K. J. R., Roth, E., Taylor, P. D. P., Vocke, Jr., R. D., and Xiao, Y. K., 2002, Isotopic abundance variations of selected elements: Pure & Applied Chemistry, Vol. 74, No. 10, pp. 1987-2017.
2002Révész, K. M., and Böhlke, J. K., 2002, Comparison of δ18O measurements in nitrate by different combustion techniques: Analytical Chemistry, v. 74, p. 5,410-5,413.
2002Verstraeten, Ingrid M, Bohlke, John K, Kraemer, Thomas F, and Cannia, James C, 2002, Use of Environmental Tracers and Isotopes to Evaluate Sources of Water, Nitrate, and Uranium in an Irrigated Alluvial Valley, Nebraska: Geological Survey (U.S.). [get publication]