National Research Program


Geochemical Reactions Between Water and Mineral Substrates

Water quality and pollution contamination depend strongly on geochemical processes involving reactions with mineral surfaces and substrates. Such processes include weathering reactions that contribute dissolved chemicals, sorption that removes aqueous species, and electron transfer mechanisms that establish redox conditions. Although extensive research has been conducted on the aqueous chemistry, minimal information exists on the corresponding solid phases and their effects on chemical transport. Objectives of this project are to: investigate the composition and structure of common mineral surfaces and determine the extent of heterogeneity between specific surfaces and the bulk mineral phase; determine the mechanism and rates of chemical and electron transfer between mineral substrates and surface- and ground-water systems; determine the nature and extent of temporal changes in surface compositions during natural weathering and contaminant introduction and assess the effects on sorption and retardation; assess environmental hazards due to the weathering of toxic materials contained in natural minerals and rocks and plan mitigation and cleanup under geologic constraints; and assess the effects of hydrologic parameters on rates of chemical weathering in soil profiles and watersheds and predict impacts of climate change. This project also conducts studies related to the biogeochemistry of selenium; for additional information, see the Linking Selenium Sources to Ecosystems web site.

REPORTS PUBLISHED 2003-2012

Izbicki, J.A., Bullen, T.D., Martin, P., and Schroth, B., in press (web publication 1/2/12), Delta Chromium-53/52 isotopic composition of native and contaminated groundwater, Mojave Desert, USA: Applied Geochemistry. (on-line abstract of preprint)

White, A.F., Schulz, M.S., Vivit, D.V., Bullen, T.D., and Fitzpatrick, J., 2012, The impact of biotic/abiotic interfaces in mineral nutrient cycling: A study of soils of the Santa Cruz chronosequence, California: Geochimica et Cosmochimica Acta, v. 77, p. 62-85. (on-line abstract of journal article)

Bern, C. R., and White, A.F., 2011, A model for assessing, quantifying, and correcting for index element mobility in weathering studies: Applied Geochemistry, v. 26, supplement 1 [Ninth International Symposium on the Geochemistry of the Earth's Surface (GES-9)], p. s9-s11. (on-line abstract of journal article)

Brantley, S.L., Buss, H., Lebedeva, M., Fletcher, R.C., and Ma, L., 2011, Investigating the complex interface where bedrock transforms to regolith: Applied Geochemistry, v. 26, supplement 1 [Ninth International Symposium on the Geochemistry of the Earth's Surface (GES-9)], p. s12-s15. (on-line abstract of article)

Bullen, T.D., 2011, Stable Isotopes of Transition and Post-Transition Metals as Tracers in Environmental Studies in Baskaran, M., ed., Handbook of Environmental Isotope Geochemistry, Springer-Verlag, p. 177-204.

Dosseto, A., Buss, H., and Suresh, P.O., 2011, The delicate balance between soil production and erosion, and its role on landscape evolution: Applied Geochemistry, v. 26, supplement 1 [Ninth International Symposium on the Geochemistry of the Earth's Surface (GES-9)], p. s24-s27. (on-line abstract of article)

Goodfellow, B.W., Hilley, G.E., and Schulz, M.S., 2011, Vadose zone controls on weathering intensity and depth: Observations from grussic saprolites: Applied Geochemistry, v. 26, supplement 1 [Ninth International Symposium on the Geochemistry of the Earth's Surface (GES-9)], p. s36-39. (on-line abstract of article)

Griffith, E.M., Paytan, A., Eisenhauer, A., Bullen, T.D., and Thomas, E., 2011, Seawater calcium isotope ratios across the Eocene-Oligocene transition: Geology, v. 39, no. 7, p. 683-686. (on-line abstract of journal article)

Morgan, J.L.L., Gordon, G.W., Arrua, R.C., Skulan, J.L., Anbar, A.D., and Bullen, T.D., 2011, High-precision measurement of variations in calcium isotope ratios in urine by multiple collector inductively coupled plasma mass spectrometry: Analytical Chemistry, v. 83, no. 18, p. 6956-6962. (on-line abstract of journal article)

Rasmussen, C., Brantley, S., Richter, D.D.B., Blum, A., Dixon, J., and White, A.F., 2011, Strong climate and tectonic control on plagioclase weathering in granitic terrain: Earth and Planetary Science Letters, v. 301, no. 3-4, p. 521-530. (on-line abstract of journal article)

Schulz, M., Stonestrom, D., Von Kiparski, C., Lawrence, C., Masiello, C., White, A., and Fitzpatrick, J., 2011, Seasonal dynamics of CO2 profiles across a soil chronosequence, Santa Cruz, California: Applied Geochemistry, v. 26, supplement 1 [Ninth International Symposium on the Geochemistry of the Earth's Surface (GES-9)], p. s132-134. (on-line abstract of article

Bullen, T.D., 2010, Interpreting Ca and Fe stable isotope signals in carbonates: a new perspective, in Birkle, P. and Torres-Alvarado, I.S., eds., Proceedings of the 13th International Symposium on Water-Rock Interaction (WRI-13): Taylor and Francis CRC Press, p. 63-66.

Buss, H.L., Mathur, R., White, A.F., and Brantley, S.L., 2010, Phosphorus and iron cycling in deep saprolite, Luquillo Mountains, Puerto Rico: Chemical Geology, v. 269, no. 1-2, p. 52-61. (on-line abstract of journal article)

Chapman, P.M., Adams, W.J., Brooks, M., Delos, C.G., Luoma, S.N., Maher, W.M., Ohlendorf, H.M., Presser, T.S., and Shaw, P., eds., 2010, Ecological Assessment of Selenium in the Aquatic Environment: CRC Press, 368 p. (on-line book information)

Kharaka, Y.K., Thordsen, J.J., Bullen, T.D., Cole, D.R., Phelps, T. J., Birkolzer, J.T., and Hovorka, S.D., 2010. Near surface and deep subsurface monitoring for successful geologic sequestration of CO2, in P. Birkle and I. S. Torres-Alvarado, eds., Proceedings of the 13th International Conference on Water-Rock Interaction: Taylor and Francis Group, p. 867-870.

Moore, J., Macalady, J.L., Schulz, M.S., White, A.F., Brantley, S.L., 2010, Shifting microbial community structure across a marine terrace grassland chronosequence, Santa Cruz, California: Soil Biology and Biochemistry, v. 42, no. 1, p. 21-31. (on-line abstract of journal article)

Presser, T.S., Jenni, K.E., Nieman, Timothy, and Coleman, J.L., 2010, Decision analysis framing study: in-valley drainage management strategies for the western San Joaquin Valley, California: U.S. Geological Survey Open-File Report 2009-1121, 12 p. (on-line abstract or on-line report in pdf format, 4.3 MB)

Presser, T.S., and Luoma, S.N., 2010, A Methodology for Ecosystem-Scale Modeling of Selenium: Integrated Environmental Assessment and Management, v. 6, no. 4, p. 685-710. (on-line abstract of journal article)

Sak, P.B., Navarre-Sitchler, A.K., Miller, C.E., Daniel, C.C., Gaillardet, J., Buss, H.L., Lebedeva, M.I., and Brantley, S.L., 2010, Controls on rind thickness on basaltic andesite clasts weathering in Guadeloupe: Chemical Geology, v. 276, no. 3-4, p.(on-line abstract of journal article)

Schulz, M.S., Vivit, D., Schulz, C., Fitzpatrick, J., and White, A., 2010, Biologic origin of iron-rich soil nodules in a marine terrace chronosequence, Santa Cruz, California: Soil Science Society of America Journal,v. 74, no. 2, p. 550-564. doi: 10.2136/sssaj2009.0144 (on-line abstract of journal article)

Tipper, E.T., Gaillardet, J., Louvat, P., Capmas, F., and White, A.F., 2010, Mg isotope constraints on soil pore-fluid chemistry: Evidence from Santa Cruz, California: Geochimica et Cosmochimica Acta, v. 74, no. 14, p. 3883-3896. (on-line abstract of journal article)

Turner, B.F., White, A.F., and Brantley, S.L., 2010, Effects of temperature on silicate weathering: Solute fluxes and chemical weathering in a temperate rain forest watershed, Jamieson Creek, British Columbia: Chemical Geology, v. 269, no. 1-2, p. 62-78. (on-line abstract of journal article)

Widory, D., Petelet-Giraud, E., Bihan, O.L., Moullec, Y.L., Quetel, C., Snell, J., Van Bocxstaele, M., Hure, A. Canard, E., Joos, E., Forti, L., Bullen, T., Johnsons, T., and Fiani, E., 2010, Metals in atmospheric particles: Can isotopes help discriminate potential sources?: Pollution Atmospherique (numero special), September 2010, p. 75-82. (on-line abstract of journal article)

Young , T.F., Finley, K., Adams, W., Besser, J., Hopkins, W., Jolley, D., McNaughton, E., Presser, T.S., Shaw, P., Unrine, J., 2010a, What you need to know about selenium, in Chapman, P.M., Adams, W.J., and others, eds., Ecological Assessment of Selenium in the Aquatic Environment: CRC Press, Chapter 3, p. 7-45.

Young, T.F., Finley, K., Adams, W., Besser, J., Hopkins, W., Jolley, D., McNaughton, E., Presser, T.S., Shaw, P., Unrine, J., 2010b, Selected Case Studies of Ecosystem Contamination by Selenium, in Chapman, P.M., Adams, W.J., and others, eds., Ecological Assessment of Selenium in the Aquatic Environment: CRC Press, Appendix A, p. 257-292 p.

Brantley, S.L. and White, A.F., 2009, Approches to Modeling Weathered Regolith, Chapter 12   in  Oelkers E.H., and Schott, J. eds., Thermodynamics and Kinetics of Water-Rock Interactions: Reviews in MIneralogy and Geochemistry, v. 70, p. 435 -484.

Bullen, T.D., and Eisenhauer, A., 2009, Metal stable isotopes in low-temperature systems: A primer: Elements, v. 5, no. 6, p. 349-352. (on-line abstract of journal article)

Bullen, T.D., and Walczyk, T., 2009, Environmental and biomedical applications of natural metal stable isotope variations: Elements, v. 5, no. 6, p. 381-385. (on-line abstract of journal article)

Carney, M., Ellis, A., Bullen, T., and Langman, J., 2009, Geochemistry of Yukon and Copper River Tributaries, Alaska, in Starrett, S., ed., Proceedings of World Environmental and Water Resources Congress 2009 - Great Rivers: Reston, VA, American Society of Chemical Engineers, p. 5857-5863

Chapman, P.M., Adams, W.J., Brooks, M.L., Delos, C.G., Luoma, S.N., Maher, W.A., Ohlendorf, H.M., Presser, T.S., and Shaw, D.P., 2009, Ecological assessment of selenium in the aquatic environment: Summary of a SETAC Pellston Workshop. Pensacola FL (USA): Society of,Environmental Toxicology and Chemistry (SETAC), 35 p. (on-line report in pdf format, 2423 KB, copyright by the Society of Environmental Toxicology and Chemistry (SETAC) with photoduplication encouraged)

Fantle, M.S., and Bullen, T.D., 2009, Essentials of iron, chromium, and calcium isotope analysis of natural materials by thermal ionization mass spectrometry: Chemical Geology, v. 258, no. 1-2, p. 50-64. (on-line abstract of journal article)

Luoma, S.N. and Presser, T.S., 2009, Emerging opportunities in management of selenium contamination: Environmental Science and Technology, v. 43, no. 22, p.8483-8487. (on-line abstract or on-line article in pdf format, 2767 KB, published by the American Chemical Society, not subject to U.S. Copyright.).

Maher, K., Steefel, C.I., White, A.F., and Stonestrom, D.A., 2009, The role of reaction affinity and secondary minerals in regulating chemical weathering rates at the Santa Cruz Soil Chronosequence, California: Geochimica et Cosmochimica Acta, v. 73, no. 10, p. 2804-2831. (on-line abstract of journal article)

Presser, T.S., and Luoma, S.N., 2009, Modeling of selenium for the San Diego Creek watershed and Newport Bay, California: U.S. Geological Survey Open-File Report 2009-1114, 48 p. (on-line abstract or on-line report in pdf format, 5.4 MB)

Smith, J.P., Bullen, T.D., Brabander, D.J., and Olsen, C.R., 2009, Strontium isotope record of seasonal scale variations in sediment sources and accumulation in low-energy, subtidal areas of the lower Hudson River estuary: Chemical Geology, v. 264, no. 1-4, p. 375-384. (on-line abstract of journal article)

Von Blanckenburg, F., Von Wirén, N., Guelke, M., Weiss, D.J., and Bullen, T.D., 2009, Fractionation of metal stable isotopes by higher plants: Elements, v. 5, no. 6, p. 375-380. (on-line abstract of journal article)

White, A.F., Schulz, M.S., Stonestrom, D.A., Vivit, D.V., Fitzpatrick, J., Bullen, T.D., ,Maher, K., and Blum, A.E., 2009, Chemical weathering of a marine terrace chronosequence, Santa Cruz, California. Part II: Solute profiles, gradients and the comparisons of contemporary and long-term weathering rates: Geochimica et Cosmochimica Acta, v. 73, no. 10, p. 2769-2803. (on-line abstract of journal article)

Bouchaou, L. , Michelot, J.L. , Vengosh, A. , Hsissou, Y. , Qurtobi, M. , Gaye, C.B., Bullen, T.D., and Zuppi, G.M., 2008, Application of multiple isotopic and geochemical tracers for investigation of recharge, salinization, and residence time of water in the Souss–Massa aquifer, southwest of Morocco: Journal of Hydrology, v. 352, no. 3-4, p. 267-287. (on-line abstract of journal article)

Brantley, S.L., Bandstra, J., Moore, J., and White. A.F., 2008, Modelling chemical depletion profiles in regolith: Geoderma, v. 145, no. 3-4, p. 494-504. (on-line abstract of journal article)

Brantley, S.L., Kubicki, J.D. and White, A. F. eds., 2008, Kinetics of Water-Rock Interaction: New York, Springer, 832 p. (on-line book information)

Buss, H.L., Sak, P.B., Webb, S.M., and Brantley, S.L., 2008, Weathering of the Rio Blanco quartz diorite, Luquillo Mountains, Puerto Rico: Coupling oxidation, dissolution, and fracturing: Geochimica Cosmochimica Acta, v. 72, p. 4488-4507. (on-line abstract of journal article)

Griffith, E.M., Paytan, A., Caldeira, K., Bullen, T.D., Thomas, E. 2008 A dynamic marine calcium cycle during the past 28 million years: Science, v. 322, no. 5908, p. 1671-1674. (on-line abstract of journal article)

Griffith, E.M. Schauble, E.A., Bullen, T.D., and Paytan, A., 2008, Characterization of calcium isotopes in natural and synthetic barite: Geochimica et Cosmochimica Acta, v. 72, no. 23, p. 5641-5658. (on-line abstract of journal article)

Hein, J.R., Schulz, M.S., Dunham, R.E., Stern, R.J., and Bloomer, S.H., 2008, Diffuse flow hydrothermal manganese mineralization along the active Mariana and southern Izu-Bonin arc system, western Pacific: Journal of Geophysical Research, v. 113, B08S14, doi:10.1029/2007JB005432. (on-line abstract of journal article)

Izbicki, J.A., Ball, J.W., Bullen, T.D., and Sutley, S.J., 2008, Chromium, chromium isotopes and selected trace elements, western Mojave Desert, USA: Applied Geochemistry, v. 23, no. 5, p. 1325-1352. (on-line abstract of journal article)

Naftz, D.L. Bullen, T.D., Stolp, B.J., and Wilkowske, C. D., 2008, Utilizing geochemical, hydrologic, and boron isotopic data to assess the success of a salinity and selenium remediation project, Upper Colorado River Basin, Utah: Science of the Total Environment, v. 392, no. 1, p. 1-11. (on-line abstract of journal article)

Page, B.D., Bullen, T.D., and Mitchell, M.J.,2008, Influences of calcium availability and tree species on Ca isotope fractionation in soil and vegetation: Biogeochemistry, v. 88, no. 1, p. 1-13. (on-line abstract of journal article)

Presser, T. S., and Schwarzbach, S. E., 2008, Technical Analysis of In-Valley Drainage Management Strategies for the Western San Joaquin Valley, California: U.S. Geological Survey Open-File Report 2008-1210, 37 p. (on-line executive summary or on-line report in pdf format, 916 KB)

Sikora, E.R., Johnson, T.M., Bullen, T.D, 2008, Microbial mass-dependent fractionation of chromium isotopes: Geochimica et Cosmochimica Acta, v. 72, no. 15, p. 3631-3641.DOI: 10.1016/j.gca.2008.05.051 (on-line abstract of journal article)

White, A.F., 2008, Quantitative approaches to characterizing natural chemical weathering rates, in Brantley, S.L., Kubicki, J.D. and White, A. F. eds., Kinetics of Water-Rock Interaction: New York, Springer, p. 469-543.

White, A.F., Schulz, M.S., Stonestrom, D.A., Vivit, D.V., Fitzpatrick J., and Bullen, T., 2008, Solute profiles in soils, weathering gradients and exchange equilibrium/disequilibrium: Mineralogical Magazine, v. 72, p. 149-153. (on-line abstract of journal article)

White, A.F., Schulz, M.S., Vivit, D.V., Blum, A.E., Stonestrom, D.A., and Anderson, S.P., 2008, Chemical weathering of a marine terrace chronosequence, Santa Cruz, California I: Interpreting rates and controls based on soil concentration-depth profiles: Geochimica et Cosmochimica Acta, v. 72, p. 36-68. (on-line abstract of journal article)

Anderson, S.P., von Blanckenburg, F., and White, A.F., 2007, Physical and chemical controls on the critical zone: Elements, v. 3, no. 5, p. 315-319. (on-line abstract of journal article)

Baesman, S.M., Bullen, T.D., Dewald, J., Zhang, D.H., Curran, S., Islam, F.S., Beveridge, T.J., and Oremland, R.S., 2007, Formation of tellurium nanocrystals during anaerobic growth of bacteria using Te-oxyanions as respiratory electron acceptors: Applied and Environmental Microbiology, v. 73, p. 2,135-2,143. (on-line abstract of journal article)

Bullen, T.D., and Wang, Y., eds., 2007, Proceedings of the 12th International Symposium on Water-Rock Interaction, Kunming, China, 31 July - 5 August, 2007: London, Taylor and Francis CRC Press, 1734 p. (on-line book information)

Burke, B.C., Heimsath, A.M., and White. A.F., 2007, Coupling chemical weathering with soil production across soil-mantled landscapes: Earth Surface Processes and Landforms, v. 32, no. 6, p. 853-873. (on-line abstract of journal article)

Farber, E., Vengosh, A., Gavrieli, I., Marie, A., Bullen, T.D., Mayer, B., Polak, A., and Shavit. U., 2007, The geochemistry of groundwater resources in the Jordan Valley: The impact of the Rift Valley brines: Applied Geochemistry, v. 22, no. 3, p. 494-514. (on-line abstract of journal article)

Skulan, J., Bullen, T., Anbar, A.D., Puzas, J.E., Shackelford, L., LeBlanc, A., and Smith, S.M., 2007, Natural Calcium Isotopic Composition of Urine as a Marker of Bone Mineral Balance: Clinical Chemistry, v. 53, no. 6, p. 1155-1158. (on-line abstract of journal article)

Vengosh, A., Sharona Hening, S., Ganor, J., Mayer, B., Weyhenmeyer, C.E., Bullen, T.D., and Paytan, A., 2007, New isotopic evidence for the origin of groundwater from the Nubian Sandstone Aquifer in the Negev, Israel: Applied Geochemistry, v. 22, no. 5, p. 1052-1073. (on-line abstract of journal article)

Balci, N., Bullen, T.D., Witte-Lien, K., Shanks, W.C., Motelica, M. and Mandernack, K.W., 2006, Iron isotope fractionation during microbially stimulated Fe(II) oxidation and Fe(III) precipitation: Geochemica et Cosmochimica Acta, v. 70, p. 622-639. (on-line abstract of journal article)

Perakis, S.S., Maguire, D.A., Bullen, T.D., Cromack, K., Waring, R.H. and Boyle, J.R., 2006, Coupled nitrogen and calcium cycles in forests of the Oregon Coast Range: Ecosystems, v. 9, no.1, p. 63-74. (on-line abstract of journal article)

White, A.F., Schulz, M.S., Vivit, D.V., Blum, A.E., and Stonestrom, D.A., 2006, Controls on pore water solutes: An approach for distinguishing between biogenic and lithogenic processes: Journal of Geochemical Exploration, v. 88, p. 363-366. (on-line abstract of journal article)

Bullen, T.D. and Bailey, S.W., 2005, Identifying calcium sources at an acid deposition-impacted spruce forest: a strontium isotope, alkaline earth element multi-tracer approach: Biogeochemistry, v. 74, no. 1, p. 63-99. (on-line abstract of journal article)

Farber, E., Vengosh, A., Gavrieli, I., Marie, A., Bullen, T.D., Mayer, B., Holtzman, R., Segal, M., Shavit, U., 2005, Management scenarios for the Jordan River salinity crisis: Applied Geochemistry, v.20, no.11, p. 2138-2153. (on-line abstract of journal article)

Verstraeten, I.M., Fetterman, G.S., Meyer, M.T., Bullen, T.D. and Sebree, S.K., 2005, Use of tracers and isotopes to evaluate vulnerability of water in domestic wells to septic waste: Ground Water Monitoring and Remediation, v. 25, no. 2, p. 107-117. (on-line abstract of journal article)

White, A.F., Schulz, M.S., Lowenstern, J.B., Vivit, D.V., and Bullen, T.D., 2005, The ubiquitous nature of accessory calcite in granitoid rocks: Implications for weathering, solute evolution, and petrogenesis: Geochimica et Cosmochimica Acta, v. 69, p. 1,455-1,471. (on-line abstract of journal article)

White A.F., Schulz M.S., Vivit D.V., Blum A.E., Stonestrom D.A., and Harden, J., 2005, Chemical weathering rates of a soil chronosequence on granitic alluvium: III Hydrochemical evolution and contemporary solute fluxes and rates: Geochimica et Cosmochimica Acta, v. 69, p. 1,975-1,996. (on-line abstract of journal article)

Ziegler, K., Chadwick, O. A., White, A. F. and Brezinski, M.A., 2005, Delta 30Si systematics in a granitic saprolite, Puerto Rico: Geology, v. 33, no. 10, p. 817-820. (on-line abstract of journal article)

Anderson, S.P., Blum, J., Brantley, S.L., Chadwick, O., Chorover, J., Derry, L.A., Drever, J.I., Hering, J.G., Kirchner, J., Kump, L.R., Richter, D., and White, A.F., 2004, Proposed initiative would study Earth's weathering engine: EOS, v. 85, p. 265, 269.

Bayless, E.R., Bullen, T.D., and Fitzpatrick, J.A., 2004, Use of 87Sr/86Sr and δ11B to identify slag-affected sediment in southern Lake Michigan: Environmental Science and Technology, v. 38, p. 1330-1337. (on-line abstract or on-line pdf file, 486 kb - published by the American Chemical Society; not subject to U.S. copyright.)

Bullen, T.D., Fitzpatrick, J.A., White, A.F., Schulz, M.S., and Vivit, D.V., 2004, Calcium stable isotope evidence for three soil calcium pools at a granitoid chrono-sequence, in Wanty, R.B., and Seal, R.R., II, eds., Water-Rock Interaction, Proceedings of the Eleventh International Symposium on Water-Rock Interaction, Saratoga Springs, New York, July 2004: London, Taylor & Francis, v. 1, p. 813-817.

Buss, H.L., Brantley, S.L., Sak, P.B., and White, A.F., 2004, Mineral dissolution at the granite-saprolite interface, in Wanty, R.B., and Seal, R.R., II, eds., Water-Rock Interaction, Proceedings of the Eleventh International Symposium on Water-Rock Interaction, Saratoga Springs, New York, July 2004: London, Taylor & Francis, v. 1, p. 819-823.

Ellis, A.S., Johnson, T.M., and Bullen, T.D., 2004, Using chromium stable isotope ratios to quantify CR(VI) reduction - lack of sorption effects: Environmental Science and Technology, v. 38, p. 3604-3507. (on-line abstract)

Farber, E., Vengosh, A., Gavrieli, I., Marie, A., Bullen, T.D., Mayer, B., Holtzman, R., Segal, M., and Shavit, U., 2004, The origin and mechanisms of salinization of the lower Jordan river: Geochimica et Cosmochimica Acta, v. 68, no. 9, p. 1989-2006. (on-line abstract)

Johnson, T.M., and Bullen, T.D., 2004, Mass dependent fractionation of selenium and chromium isotopes in low-temperature environments, in Johnson, C.M., Beard, B.L., and Albarede, F., eds., Geochemistry of Non-Traditional Stable Isotopes: Reviews in Mineralogy and Geochemistry, v. 55, p. 255-288.

Moore, J., White, A.F., and Brantley, S.L., 2004, Effects of giant sequoia on soil chemistry, in Wanty, R.B., and Seal, R.R., II, eds., Water-Rock Interaction, Proceedings of the Eleventh International Symposium on Water-Rock Interaction, Saratoga Springs, New York, July 2004: London, Taylor & Francis, v. 2, p. 1,341-1,345.

Schulz, M.S., White, A.F., and Vivit, D.V., 2004, Geochemistry and evolution of pedogenic Fe nodules in a marine terrace chronosequence, in Wanty, R.B., and Seal, R.R., II, eds., Water-Rock Interaction, Proceedings of the Eleventh International Symposium on Water-Rock Interaction, Saratoga Springs, New York, July 2004: London, Taylor & Francis, v. 2, p. 1,231-1,234.

Shanley, J.B., Krám, P., Hruska, J., and Bullen, T.D. , 2004, A biogeochemical comparison of two well-buffered catchments with contrasting histories of acid deposition. Water, Air, and Soil Pollution: Focus, v. 4, no. 2-3, p. 325-342. (on-line abstract)

Vengosh, A., Hening, S., Ganor, J., Bullen, T.D., Weyhenmeyer, C.E., Sturchio, N.C., and Paytan, A., 2004, The origin and age of groundwater in the Nubian Sandstone aquifer in the Negev, Israel, in Wanty, R.B., and Seal, R.R., II, eds., Water-Rock Interaction, Proceedings of the Eleventh International Symposium on Water-Rock Interaction, Saratoga Springs, New York, July 2004: London, Taylor & Francis, v. 1, p. 509-512.

Verstraeten, I.M., Fetterman, G.S., Sebree, S.K., Meyer, M.T., and Bullen, T.D., 2004, Is Septic Waste Affecting Drinking Water From Shallow Domestic Wells Along the Platte River in Eastern Nebraska?: U.S. Geological Survey Fact Sheet 2003-0072 (on-line fact sheet or on-line fact sheet in pdf format, 1004 KB)

Vivit, D.V., Schulz, M.S., White, A.F., and Anderson, S.P., 2004, Si cycling in a marine chronosequence demonstrated by pore-water Ge/Si ratios, in Wanty, R.B., and Seal, R.R., II, eds., Water-Rock Interaction, Proceedings of the Eleventh International Symposium on Water-Rock Interaction, Saratoga Springs, New York, July 2004: New York, A.A. Balkema, v. 1, p. 887-890.

White, A.F., Schulz, M.S., Lowenstern, J.B., Vivit, D.V., and Bullen, T.D., 2005, The ubiquitous nature of accessory calcite in granitoid rocks: Implications for weathering, solute evolution, and petrogenesis: Geochimica et Cosmochimica Acta, v. 69, p. 1,455-1,471. (on-line abstract of journal article)

White, A.F., Schulz, M.S., Vivit, D., and Blum, A.E., 2004. Hydrochemical evolution and contempory weathering rates in a soil chronosequence, Merced, California, USA, in Wanty, R.B., and Seal, R.R., II, eds., Water-Rock Interaction, Proceedings of the Eleventh International Symposium on Water-Rock Interaction, Saratoga Springs, New York, July 2004: New York, A.A. Balkema, v. 1, p. 891-894.

Bayless, E.R., and Schulz, M.S., 2003, Mineral precipitation and dissolution at two slag-disposal sites in northwestern Indiana, USA: Environmental Geology, v. 45, p. 252-261. (on-line abstract)

Bullen, T.D., White, A.F., Childs, C.W., Johnson, C.M., Beard, B.L., Braterman, P.W., and Welch, S.A., 2003, Isotopic fractionation between Fe(III) and Fe(II) in aqueous solutions; discussion and reply: Earth and Planetary Science Letters, v. 206, no. 1-2, p. 229-236.

Ellis, A.S., Johnson, T.M., Herbel, M.J., and Bullen, T.D., 2003, Stable isotope fractionation of selenium by natural microbial consortia: Chemical Geology, v. 195, no. 1, p. 119-129. (on-line abstract)

Johnson, T.M., and Bullen, T.D., 2003, Selenium isotope fractionation during reduction by Fe(II)-Fe(III) hydroxide-sulfate (green rust): Geochimica et Cosmochimica Acta, v. 67, no. 3, p. 413-419. (on-line abstract)

Landmeyer, J.W., Bradley, P.M., and Bullen, T.D., 2003, Stable lead isotopes reveal a natural source of igh lead concentrations to gasoline-contaminated ground water: Environmental Geology, v. 45, no. 1, p. 12-22. (on-line abstract)

Walker, J.F., Hunt, R.J., Bullen, T.D., Krabbenhoft, D.P., and Kendall, C., 2003, Variability of Isotope and Major Ion Chemistry in the Allequash Basin, Wisconsin: Ground Water, v. v. 41, p. 883-894. (on-line abstract)

White, A.F., 2003, Natural weathering rates of silicate minerals, in Drever, J.I., ed., Surface and Ground Water, Weathering and Soils, Treatise on Geochemistry, v. 5, chapter 5: Elsevier.

White, A.F., and Brantley, S.L., 2003, The effect of time on the weathering of silicate minerals - Why do weathering rates differ in the laboratory and field?: Chemical Geology, v. 202, no. 3, p. 479-506. (on-line abstract)

For additional bibliographic citations for Theresa Presser in 2001 through 2008, see Hydrogeochemical and Biogeochemical Studies of Volcanic, Geothermal, and Selenium-Impacted Systems.

FOR ADDITIONAL INFORMATION ON THIS PROJECT, CONTACT:
Arthur F. White
U.S. Geological Survey, 345 Middlefield Rd, MS420, Menlo Park, CA 94025
Email: afwhite@usgs.gov
Telephone: 650-329-4519

Thomas D. Bullen (professional profile)
U.S. Geological Survey, 345 Middlefield Rd, MS420, Menlo Park, CA 94025
Email: tdbullen@usgs.gov
Telephone: 650-329-4577

Theresa S. Presser
U.S. Geological Survey, 345 Middlefield Rd, MS434, Menlo Park, CA 94025
email: tpresser@usgs.gov
Telephone: 650-329-4512

Davison V. Vivit
U.S. Geological Survey, 345 Middlefield Rd, MS420, Menlo Park, CA 94025
Email: dvvivit@usgs.gov
Telephone: 650-329-4565

Marjorie S. Schulz
U.S. Geological Survey, 345 Middlefield Rd, MS420, Menlo Park, CA 94025
Email: mschulz@usgs.gov
Telephone: 650-329-4518

For information on additional projects in the National Research Program, see Indexes to NRP projects and bibliographies.

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