Center for Isotope Geochemistry

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Center for Isotope Geochemistry Publications

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In Progress

  • Ewing, S.A., Christensen, J.N., Brown, S.T., VanCuren, R.A., Cliff, S.S, and DePaolo, D.J., 2010, Asian contribution to air pollution in California, Environmental Science and Technology (submitted)
  • DePaolo, D.J., 2010, Theory of isotopic and trace element fractionation during precipitation of carbonate minerals from aqueous solutions: Surface reaction control limit. Geochmica et Cosmochimica Acta (submitted)


  • Aciego, S.M., Jourdan, F., DePaolo, D.J., Kennedy, B.M., Renne, P.R., and Sims, K.W.W, Combined U-Th/He and 40Ar/39Ar Geochronology of Post-shield Lavas from the Mauna Kea and Kohala volcanoes, Hawaii. Earth Planetary Science Letters, Geochimica et Cosmochimica Acta 74(5): 1620-1635, doi:10.1016/j.gca.2009.11.020 (2010)
  • Payne, J.L., Turchyn, A.V., Paytan, A., DePaolo, D.J., Lehrmann, D.J., Yu, Y., Wei, J., Calcium isotope constraints on the end-Permian mass extinction, Proc. National Acad. Sci. v. 107, no. 19, 8543–8548 (2010) doi:10.1073/pnas.0914065107/-/DCSupplemental (2010)
  • Hanano, D., Weis, D., Scoates, J.S., Aciego, S., and DePaolo, D.J., Horizontal and vertical zoning of heterogeneities in the Hawaiian mantle plume from the geochemistry of consecutive postshield volcano pairs: Kohala-Mahukona and Mauna Kea–Hualalai.  Geochemistry, Geophysics, Geosystems, v. 11, no. 1, Q01004, doi:10.1029/2009GC002782 (2010)
  • Lee, V. and DePaolo, D.J., Christensen, J.N., 2010, Uranium-series comminution ages of continental sediments: Case study of a Pleistocene alluvial fan. Earth and Planetary Science Letters vol. 296, pp. 244-254 doi:10.1016/j.epsl.2010.05.005 (2010)
  • Moynier, F., Simon, J.I., Podosek, F.A., Meyer, B.S., Brannon, J., and DePaolo, D.J., Ca isotope effects in Orgueil leachates and the implications for the carrier phases of 54Cr anomalies. The Astrophysical Journal Letters, 718:L7–L13 (2010)
  • Fantle, M. S., K. M. Maher, and D. J. DePaolo (2010), Isotopic approaches for quantifying the rates of marine burial diagenesis, Reviews of Geophysics v. 48, RG3002, 38pp. doi:10.1029/2009RG00030 (2010)



  • Lu, G., D. J. DePaolo, Q. Kang, and D. Zhang (2009), Lattice Boltzmann simulation of snow crystal growth in clouds, J. Geophys. Res., 114, D07305, doi:10.1029/2008JD011087 (2009)
  • Stolper, E.M., DePaolo, D.J. and Thomas, D.M., Deep Drilling into a Mantle Plume Volcano: The Hawaii Scientific Drilling Project, Scientific Drilling, no. 7, March 2009, doi:10.2204/ (2009)
  • Korbar, T., Montanari, A., Koch, G., Mariani, S., DePaolo, D., Turchyn, A.V., Miknic, M, and Tari, V., Geologic Reconnaissance of the Island of Pelagruza (central Adriatic, Croatia). Geologica Croatia, v.62/2, 75-94 (2009)
  • Simon, J., DePaolo, D.J., and Moynier, F., Calcium isotope composition of meteorites, Earth, and Mars, The Astrophysical Journal, v. 702; 707-715 (2009), doi:10.1088/0004-637X/702/1/70 (2009)
  • Borg, L.E., Gaffney, A.M., Shearer, C.K., DePaolo, D.J., Hutcheon, I.D., Owens, T.L., Ramon, E.,Brennecka, G., Mechanisms for incompatible-element enrichment on the Moon deduced from the lunar basaltic meteorite Northwest Africa 032. Geochimica et Cosmochimica Acta v. 73,  3963–3980 (2009)
  • Watkins, J.M., DePaolo, D.J., Huber, C. and Ryerson, F.J., Liquid composition-dependence of calcium isotope fractionation during diffusion in molten silicates, Geochimica et Cosmochimica Acta, v. 73, 7341–7359 (2009), doi:10.1016/j.gca.2009.09.004 (2009)
  • Zhao, Z., Xuanxue Mo, Dilek, Y., Niu, Y., DePaolo, D.J., Robinson, P., Zhu, D., Sun, C., Dong, D., Zhou, S., Luo, Z., Hou, Z., Geochemical and Sr–Nd–Pb–O isotopic compositions of the post-collisional ultrapotassic magmatism in SW Tibet: Petrogenesis and implications for India intra-continental subduction beneath southern Tibet. Lithos v. 113,  190–212 (2009)



  • Federal Agency Report: (Chair) National Research Council (NRC), Origin and Evolution of Earth: Research Questions for a Changing Planet. National Academy Press, Washington, D.C., 185pp. (2008)
  • Ewing, S.A. Yang, W., DePaolo, D.J., Michalski, G., Kendall, C., Stewart, B.W., Thiemens, M., and Amundson, R., Non-biological Fractionation of Stable Ca Isotopes in Soils of the Atacama Desert, Chile. Geochimica et Cosmochimica Acta 72(4): 1096-1110 (2008)
  • Lamb, M.P, Dietrich, W.E. Aciego, S.M. DePaolo, D.J. and Manga, M., Formation of Box Canyon, Idaho, by Megaflood: Implications for Seepage Erosion on Earth and Mars. Science 320: 1067-1070 (2008)
  • Goodge, J.W., Vervoort, J.D., Fanning, C.M. Brecke, D.M., Farmer, G.L., Williams, I.S., Myrow,P.M. and DePaolo, D.J., A positive test of East Antarctica-Laurentia juxtaposition within the Rodinia supercontinent. Science 321: 235-240 (2008)
  • Lee, J.-E., Fung, I., DePaolo, D.J., and Otto-Bliesner, B., Water Isotopes during the Last Glacial Maximum: New general circulation model calculations. Journal of Geophysical Research-Atmospheres 113: D19109, doi:10.1029/2008JD009859 (2008)
  • DePaolo, D.J., Citation for presentation of the 2007 F.W. Clarke Award to Ethan F. Baxter. Geochimicia et Cosmochimicia Acta 72(12S): p. S6 (2008)
  • DePaolo, D.J. and Orr, F.M., Geoscience Research for Our Energy Future. Physics Today 61(8): 46-51 (2008)
  • Dong X., Zhao Z.D., Mo X.X., Yu X.H., Zhang H.F., Li B., DePaolo D., Geochemistry of the Cenozoic Kamafugites from west Qinling and its constraint for the nature of magma source region. Acta Petrologica Sinica 24(2): 238-248 (2008)
  • Lu, Guoping, DePaolo, D.M., Kang Q.J., Zhan, D.X., Lattice Boltzman simulation of snow crystal growths in clouds. Journal of Geophysical Research—Atmospheres 114: D07305, doil:10.1029/2008JD011087 (2008)



  • Federal Agency Report: (Chair) Department of Energy (DOE), Basic Research Needs for Geosciences: Facilitating 21st Century Energy Systems. Report from the Workshop Held February 21-23, 2007, Office of Basic Energy Sciences. 186 pp. plus appendices, available at (2007)
  • DePaolo, D.J. and Weis, D., Hotspot Volcanoes and Large Igneous Provinces. In Harms, U. et al., ed., Continental Scientific Drilling: A Decade of Progress and Challenges for the Future. Springer-Verlag, 366pp (2007)
  • Aciego, S., DePaolo, D.J., Kennedy, B.M., Sims, K.W.W., and Lamb, M., Combining [3He] cosmogenic dating with U-Th/He eruption ages using olivine in basalt. Earth and Planetary Science Letters 254: 288-302 (2007)
  • Sims, K.W.A., Ackert, R.P. Jr., Ramos, F.C., Sohn, R.A., Murrell, M.T. and DePaolo, D.J., Determining eruption ages and erosion rates of Quaternary basaltic volcanism from combined U-series disequilibria and cosmogenic exposure ages. Geology 35: 471-474 (2007)
  • Fantle, M.S. and DePaolo, D.J., Ca isotopes in carbonate sediment and pore fluid from ODP Site 807A: The Ca2+(aq)-calcite equilibrium fractionation factor and calcite recrystallization rates in Pleistocene sediments. Geochimica et Cosmochimica Acta 71: 2524-2546 (2007)
  • DePaolo, D.J., Stolper, E.M. and Thomas, D.M., Scientific Drilling In Hotspot Volcanoes. In McGraw-Hill Yearbook of Science and Technology 2007, pp. 203-205 (2007)
  • Feineman, M.D., Ryerson, F.J., DePaolo, D.J. and Plank, T., Zoisite-aqueous fluid trace element partitioning with implications for subduction zone fluid composition. Chemical Geology 239: 250-265 (2007)
  • Lee, J.-E., Fung, I., DePaolo, D.J. and Hening, C.C., Analysis of the global distribution of water isotopes using the NCAR atmospheric general circulation model. Journal of Geophysical Research 112: D16306, doi:10.1029/2006JD007657 (2007)
  • Christensen, J.N., Conrad, M.E., DePaolo, D.J. and Dresel, P.E., Isotopic Studies of Contaminant Transport at the Hanford Site, WA. Vadose Zone Journal 6: 1018-1030 (2007)
  • Conrad, M.E., DePaolo, D.J, Maher, K., Gee, G.W. and Ward, A.L., Field Evidence for Strong Chemical Separation of Contaminants in the Hanford Vadose Zone. Vadose Zone Journal 6: 1031-1041 (2007)



  • Maher, K., Steefel C. I., DePaolo D.J., and Viani B. E., The Mineral Dissolution Rate Conundrum: Insights from Reactive Transport Modeling of U Isotopes and Pore Fluid Chemistry in Marine Sediments. Geochemistry Geophysics Geosystems 70: 337-363 (2006)
  • DePaolo, D.J., Isotopic effects in fracture-dominated reactive fluid-rock systems. Geochimica et Cosmochimica Acta 70: 1077-1096 (2006)
  • Singleton, M.J., Maher, K., DePaolo, D.J., Conrad, M.E. and Dresel, P.E., Dissolution rates and vadose zone drainage from strontium isotope measurements of groundwater in the Pasco Basin, WA unconfined aquifer. Journal of Hydrology 321: 39-58 (2006)
  • Hammersley, L. and DePaolo, D.J., Isotopic and geophysical constraints on the structure and evolution of the Clear Lake volcanic system. Journal of Volcanology and Geothermal Research 153: 331-356 (2006)
  • DePaolo, D.J., Maher, K., Christensen, J.N., McManus, J., Sediment Transport Time Measured with U-series Isotopes: Results from ODP North Atlantic Drift Site 984. Earth Planetary Science Letters 248: 379-395 (2006)
  • Maher, K., DePaolo, D.J., Christensen, J.N., U-Sr Isotopic Speedometer: Fluid flow and Chemical Weathering Rates in Aquifers. Geochimica et Cosmochimica Acta 70: 4417-4435 (2006)
  • Aciego, S., Kennedy, B.M., DePaolo, D.J., Christensen, J.N., and Hutcheon, I., Reply to comment on U-Th/He age of phenocrystic garnet from the 79 AD eruption of Mt Vesuvius. Earth Planetary Science Letters 250: 404-405 (2006)
  • Fantle, M.S. and DePaolo, D.J., Sr isotopes and pore fluid chemistry in carbonate sediment of the Ontong Java Plateau: Calcite recrystallization rates and evidence for a rapid rise in seawater Mg over the last 10 million years. Geochimica et Cosmochimica Acta 70: 3883–3904, (2006)



  • Singleton, M.J., Woods, K.N., Conrad M.E., et al., Tracking Sources of Unsaturated Zone and Groundwater Nitrate Contamination Using Nitrogen and Oxygen Stable Isotopes at the Hanford Site, Washington. Environmental Science and Technology 39 (10): 3563-3570 (2005) • doi: 10.1021/es0481070
  • Maher, K., Steefel, C.I., and DePaolo, D.J., The Mineral Dissolution Rate Conundrum: Insights from Reactive Transport Modeling of U isotopes and Pore Fluid Chemistry in Marine Sediments. Geochimica Cosmochimica Acta (online corrected proof, November) (2005)
  • Fantle, Matthew S., Donald J. DePaolo, Variations in the marine Ca cycle over the past 20 Ma. Earth and Planetary Science Letters 237:102-117 (2005)



  • Fantle M.S., DePaolo D.J., Iron Isotopic Fractionation During Continental Weathering. Earth and Planetary Science Letters 228 (3-4): 547-562 (2004)
  • Feineman M.D., DePaolo D.J., Reply to Comment on “Steady-State Ra-226/Th-230 Disequilibrium in Mantle Minerals: Implications for Melt Transport Rates in Island Arcs” by R. George, M. Reagan, S. Turner, J. Gill, B. Bourdon. Earth and Planetary Science Letters 228 (3-4): 569-572 (2004)
  • Maher K., Steefel C.I., DePaolo D.J., U-234/U-238 Disequilibrium as a Measure of Weathering Rates in Soils and Sediments. Geochimica et Cosmica Acta 68 (21): 4453-4468 (2004)
  • Fantle M.S., Bullen T.D., DePaolo D.J., Fe Isotopic Composition of Rivers. Geochimica et Cosmochimica Acta 68 (11): A433-A433 (2004)
  • DePaolo, D.J., He-3 and Other Isotopes in the Lower Mantle: the HSDP Perspective. Geochimica et Cosmochimica Acta 68 (11): A556-A556 (2004)
  • Feineman M.D., Ryerson F.J., DePaolo, D.J., Quantitative Models for the Composition of Slab-Derived Fluids. Geochimica et Cosmochimica Acta 68 (11): A600-A600 (2004)
  • DePaolo, Donald J., Mark E. Conrad, Katharine Maher and Glendon W. Gee, Evaporation Effects on Oxygen and Hydrogen Isotopes in Deep Vadose Zone Pore Fluids at Hanford, Washington. Vadose Zone Journal 3 (Feb): 220-232 (2004)
  • Conrad, Mark E., and Donald J. DePaolo, Carbon Isotopic Evidence for Biodegradation of Organic Contaminants in the Shallow Vadose Zone of the Radioactive Waste Management Complex. Vadose Zone Journal 3: 143-153 (2004)
  • Baxter, Ethan F., and Donald J. DePaolo, Can metamorphic reactions proceed faster than bulk strain? Contributions to Mineral Petrology 146: 657-670 (2004) • doi 10.1007/s00410-003-0525-3
  • DePaolo, Calcium Isotopic Variations Produced by Biological, Kinetic, Radiogenic and Nucleosynthetic Processes. Chapter in Reviews in Mineralogy and Geochemistry (ed. Jodi Rosso) 55: 255-288 (2004)
  • Christensen, J.N., P.E. Dresel, M.E. Conrad, K. Maher and D.J. DePaolo, Identifying the sources of subsurface contamination at the Hanford Site in Washington using high precision uranium isotopic measurements. Environmental Science and Technology 38: 3330-3337 (2004) • doi: 10.1021/es034700q
  • Singleton, M.J., E.L. Sonnenthal, M.E. Conrad, D.J. DePaolo and G.W. Gee, Multiphase Reactive Transport Modeling of Seasonal Infiltration Events and Stable Isotope Fractionation in Unsaturated Zone Pore Water and Vapor at the Hanford Site. Vadose Zone Journal 3: 775-885 (2004)
  • Angert, Alon, Christopher D. Cappa, Donald J. DePaolo, Kinetic 17O effects in the hydrologic cycle: Indirect evidence and implications. Geochim. Cosmochim. Acta 68: 3441-3619 (2004)
  • Maher, Katharine, Donald J. DePaolo, Jo Chiu-Fang Lin, Rates of diagenetic reactions in deep-sea sediment: In situ measurement using 234U/238U of pore fluids. Geochim. Cosmochim. Acta 68: 4629-4648 (2004)
  • Bryce, J., D.J. DePaolo, Pb isotopic heterogeneity in basaltic phenocrysts. Geochim. Cosmochim. Acta 68: 4453-4468 (2004)



  • Jellinek, A. Mark, and D.J. DePaolo, A model for the origin of large silicic magma chambers: precursors of caldera-forming eruptions. Bulletin of Volcanology 65: 363-381 (2003) • doi 10.1007/s00445-003-0277-y
  • DePaolo, D.J., and Michael Manga, Deep Origin of Hotspots—the Mantle Plume Model. Science 300: 920-921 (2003)
  • Cappa, C., M.B. Hendricks, D.J. DePaolo and R.C. Cohen, Isotopic fractionation of water during evaporation. J. Geophys. Research 108(D16):4525-4534 (2003) • doi:10.10.1029/2003JD003597
  • Maher, K., D.J. DePaolo, M.S. Conrad, and R.J. Serne, Vadose zone infiltration rate at Hanford, Washington, inferred from Sr isotope measurements. Water Resources Research 39(8):1204-1217 (2003) • doi:10.1029/2002WR001742
  • Feineman, M. and D.J. DePaolo, Steady-state 226Ra/230Th disequilibrium in mantle minerals: Applications for melt transport rates in island arcs. Earth and Planet. Sci. Lett. 215: 339-355 (2003) • doi:10.1016/S0012-821X(03)00454-0
  • Aciego, S., B.M. Kennedy, D.J. DePaolo, J.N. Christensen, I. Hutcheon, U-Th/He age of phenocrystic garnet from the 79 AD eruption of Mt. Vesuvius. Earth and Planet Sci. Lett. 216: 209-219 (2003) • doi:10.1016/S0012-821X(03)00478-3



  • Baxter, E. and D.J. DePaolo, Field Measurement of High Temperature Bulk Reaction Rates II: Interpretation of Results from a Field Site near Simplon Pass, Switzerland. American Journal of Science 302(June): 465-515 (2002)
  • Baxter, E. and D.J. DePaolo, Field Measurement of High Temperature Bulk Reaction Rates I: Theory and Technique. American Journal of Science 302(May): 442-464 (2002)
  • Sims, K.W., S.J. Goldstein, J. Blichert-Toft, M.R. Perfit, P. Kelemen, D.J. Fornari, P. Michael, M.T. Murrell, S.R. Hart, D.J. DePaolo, G. Layne, L. Ball, M. Jull and J. Bender, Chemical and isotopic constraints on the generation and transport of magma beneath the East Pacific Rise. Geochim. Cosmochim. Acta 66: 3481-3504 (2002)
  • Baxter, E., D.J. DePaolo and P.R. Renne, Spatially Correlated Anomalous 40Ar/39Ar “Age” Variations in Biotites About a Lithologic Contact near Simplon Pass, Switzerland: A Mechanistic Explanation for “Excess Ar.” Geochim. Cosmochim. Acta 66: 129-145 (2002)
  • Baxter, E., D.J. DePaolo and J. Ague, Prograde Temperature-Time Evolution in the Barrovian Type-Locality Constrained by Sm/Nd Garnet Ages from Glen Clova, Scotland. Journal of the Geological Society, London 159: 71-82 (2002)
  • Evans, W.C., R.H. Mariner, S.E. Ingebritsen, B.M. Kennedy, M.C. van Soest, and M.A. Huebner, Report of hydrologic investigations in the Three Sisters area of central Oregon, summer 2001. USGS Water-Resources Investigations Report 02-4061, 16 pp. (2002)
  • Song, D.L., M.E. Conrad, K.S. Sorenson and L. Alvarez-Cohen, Stable carbon isotope fractionation during enhanced in-situ bioremediation of trichloroethene. Environ. Sci. Technol. 36: 2262-2268 (2002)
  • van Soest, M.C., B.M. Kennedy, W.C. Evans, and R.H. Mariner, Mantle helium and carbon isotopes in Separation Creek geothermal springs, Three Sisters area, central Oregon: Evidence for renewed volcanic activity or a long term steady state system. GRC Transactions 26: 361-366 (2002)
  • Shevenell, L., L. Garside, G. Arehart, M.C. van Soest, and B.M. Kennedy, Geochemical sampling of thermal and nonthermal waters in Nevada to evaluate potential for resource utilization. GRC Transactions 26: 501-506 (2002)
  • Bhupathiraju, V.K., P. Krauter, H.-Y.N. Holman, M.E. Conrad, P.F. Daley, A.S. Templeton, J.R. Hunt, M. Hernandez and L. Alvarez-Cohen, Assessment of in-situ bioremediation at a refinery waste-contaminated site and an aviation gasoline contaminated site: Biodegradation 13: 79-90 (2002)
  • Christenson, B.W., E.K. Mroczek, B.M. Kennedy, M.C. van Soest, M.K. Stewart, and G. Lyon, Ohaaki reservoir chemistry: Characteristics of an arc-type hydrothermal system in the Taupo Volcanic Zone, New Zealand. Journal of Volcanology and Geothermal Research 115: 53-82 (2002)
  • Kennedy, B.M., T. Torgersen, and M.C. van Soest, Multiple Atmospheric Noble Gas Components in Hydrocarbon Reservoirs: A Study of the Northwest Shelf, Delaware Basin, SE New Mexico. Geochimica et Cosmochimica Acta 66(16): 2807-2822 (2002)  



  • DePaolo, D.J., Bryce, J.G., Dodson, A., Shuster, D.L., and Kennedy, B.M., Isotopic evolution of Mauna Loa and the Chemical Structure of the Hawaiian Plume. Geochemistry, Geophysics, Geodynamics, paper #2000GC000139 (2001) (Available at with subscription.)
  • DePaolo, D.J., E.M. Stolper and D.M. Thomas, Deep Drilling into a Hawaiian Volcano. EOS Transactions 82: 149, 154-155 (2001)
  • Byrne, R., B.L. Ingram, S. Starratt, F. Malamud-Roam, J.N. Collins, and M.E. Conrad, Carbon-isotope, diatom, and pollen evidence for Late Holocene salinity change in a brackish marsh in the San Francisco Estuary. Quat. Res. 55: 66-76 (2001)
  • Moore, J.N., Norman, D.I., and Kennedy, B.M. (1999). Fluid-inclusion gas composition from an active magmatic-hydrothermal system: a case study of The Geysers, California geothermal field. Chemical Geology 173: 3-30 (2001)



  • Nishiizumi, K., Caffee, M.W., and DePaolo, D.J., Preparation of 41Ca AMS standards. Nuclear Instruments and Methods. Physics Research B 172:399-403 (2000)
  • Johnson, T., Roback, R.C., McLing, T.L., Bullen, T.D., DePaolo, D.J., Doughty, C., Hunt, R.J., Smith, R.W., Cecil, L.D., and Murrell, M.T., Groundwater “fast-paths” in the Snake river plain aquifer: Radiogenic isotope ratios as natural groundwater tracers. Geology 28: 871-874 (2000)
  • Hendricks, M.B., D.J. DePaolo, and R.C. Cohen, Space and time variations of δ18O and δD in precipitation: Can paleotemperature be estimated from ice cores? Global Biogeochemical Cycles 14: 851-861 (2000) (Available at with subscription.)
  • De La Rocha, C.L. and D.J. DePaolo, Isotopic Evidence for Variations in the Marine Calcium Cycle over the Cenozoic. Science 289: 1176-1178 (2000) (Available at
  • DePaolo, D.J. and Weis, D., Introduction to Special Issue in Honor of Gerald J. Wasserburg. Chemical Geology 169: 1-3 (2000) (Available at
  • DePaolo, D.J. and E.E. Daley, Neodymium isotopes in basalts of the Southwest Basin and range and lithospheric thinning during extension. Chemical Geology 169: 157-185 (2000) (Available at
  • Baxter, E. and D.J. DePaolo, Field evidence for slow metamorphic reaction rates at 500-600°C. Science 288: 1411-1414 (2000) (Available at
  • Geller, J.T., H.-Y. Holman, G. Su, T-S. Liou, M.E. Conrad, K. Pruess, and J.C. Hunter-Cevera, Flow dynamics and potential for biodegradation of organic contaminants in fractured rock vadose zone. J. Contaminant Hydrology 33, 63-90 (2000)
  • Conrad, M.E., and B. Faybishenko, Isotopic tracers of flow and transport through the vadose zone. In Vadose Zone Technology and Science Solutions, eds. B. Looney and R. Falta, Batelle Press, Columbus OH, pp 298-303 (2000)  



  • Sims, K.W.W., D.J. DePaolo, M.T. Murrell, W.S. Baldridge, S. Goldstein, D. Clague, and M. Jull, Porosity of the melting zone and variations in solid mantle upwelling rate beneath Hawaii: Inferences from 238U-230Th-226Ra and 235U-231Pa. Geochim. Cosmochim. Acta 63: 4119-4138 (1999) (Available at
  • Skulan, J. and D.J. DePaolo, Calcium isotope fractionation between soft and mineralized tissues as a monitor of calcium use in vertebrates. Proceedings of the National Academy of Sciences 96: 13,709-13,713 (1999) (Available at
  • McCauley, S.E., Goldstein, A.H. and D.J. DePaolo, An isotopic approach for understanding the CH3Br budget of the atmosphere. Proceedings of the National Academy of Sciences 96: 10,006 – 10,009 (1999) (Available at
  • Chen, C.H.; Nakada, S.; Shieh, Y.N.; and DePaolo, D.J. The Sr, Nd and O isotopic studies of the 1991-1995 eruption at Unzen. Japan. J. Volc. Geothermal Res. 89: 243-253 (1999)
  • Torgersen, T. and Kennedy, B.M., Air-Xe enrichments in Elk Hills oil field gases: role of water in migration and storage. Earth Planet. Sci. Lett. 167: 239-253 (1999)
  • Conrad, M.E., A.S. Templeton, P.F. Daley, and L. Alvarez-Cohen, Seasonally-induced fluctuations in microbial production and consumption of methane during bioremediation of aged subsurface refinery contamination. Environ. Sci. Technol. 33: 4061-4068 (1999)
  • Conrad, M.E., A.S. Templeton, P.F. Daley, and L. Alvarez-Cohen, Isotopic evidence for biological controls on migration of petroleum hydrocarbons. Org. Geochem. 30: 843-859 (1999)
  • Compton, J.S., M.E. Conrad, and T.W. Vennemann, Stable isotope evolution of volcanic ash layers during diagenesis of the Miocene Monterey Formation, California. Clays and Clay Min. 47: 84-95 (1999)  



  • Dodson, A., D.J. DePaolo, and B. M. Kennedy, Helium Isotopes in Lithospheric Mantle: Evidence from Tertiary Basalts of the Western U.S. Geochim. Cosmochim Acta 62: 3775-3787 (1998) (Available at
  • Getty, S.R. and D.J. DePaolo, U-Pb and Th-Pb geochronology in Quaternary rocks. In J.M. Sowers, J.S. Nollers, W.R. Lettis (eds.) Dating and Earthquakes: Review of Quaternary geochronology and its application to paleoseismology, in NUREG/CR-5562, U.S. Nuclear Regulatory Comm., pp. 203-211 (1998)
  • Renne, P.R., Swisher, C.C., Deino, A.L., Owens, T.L., DePaolo, D.J., and Karner, D.B. (1998) Intercalibration of standards, absolute ages and uncertainties in 40Ar/39Ar dating. Chemical Geology 145: 117-152 (1998) (Available at
  • Sorey M.L., Evans W.C., Kennedy B.M., Farrar C.D., Hainsworth, H.A., and Hausback, B., Carbon dioxide and helium emissions from a reservoir of magmatic gas beneath Mammoth Mountain, California. J. Geophys. Res. 103: 15,303-15,323 (1998)
  • Ryan, P.C., M.E. Conrad, K. Brown, C.P. Chamberlain and R.E. Reynolds, Oxygen isotope compositions of mixed-layer serpentine and illite/smectite in the Tuscaloosa formation (U.S. Gulf Coast): Implications for pore fluids and mineralogic reactions. Clays and Clay Min. 46: 357-368 (1998)
  • Kharaka, Y.K., Thordsen, J.J., Evans, W.C., and Kennedy, B.M., Geochemistry and hydromechanical interactions of fluids associated with the San Andreas fault system, California. In Faults and Subsurface Fluid Flow, Geophysical Monograph 113, Am. Geophysical Union, pp 129-148 (1998)
  • Ingram, B.L., P. De Deckker, A.R. Chivas, M.E. Conrad, and A.R. Byrne, Stable isotopes, Sr/Ca, and Mg/Ca in biogenic carbonates from Petaluma Marsh, northern California, USA. Geochim. et Cosmochim. Acta 62: 3229-3237 (1998)
  • Evans, W.C., Sorey, M.L., Michel, R.L., Kennedy, B.M., and Hainsworth, L.J., Gas-water interaction at Mammoth Mountain volcano, California. In Water-Rock Interaction, Proceedings of 9th Intl Symposium on Water-Rock Interaction, Taupo, New Zealand, eds. Aerhart and Hulston, WRI-9: 443-446 (1998)
  • Dickens, G.R. and Kennedy, B.M. (1998), Noble gases in methane hydrate from the Blake Ridge. Proc. of the Ocean Drilling Program, Scientific Results, p 64 (1998)  



  • McCauley, S. and DePaolo, D.J., The Marine 87Sr/86Sr and δ18O Records, Himalayan Alkalinity Fluxes and Cenozoic Climate Models. In Tectonic Uplift and Climate Change, W.F. Ruddiman (Editor), Plenum, pp. 427-467 (1997)
  • Kennedy B.M., Kharaka Y.K., Ellwood A., DePaolo D.J., Thordsen J., Ambats G., Evans W.C., and Mariner R.H., Mantle fluids in the San Andreas fault system. Science 278: 1278-1281 (1997) (Available at
  • Dodson, A., Kennedy, B.M. and D.J. DePaolo, Helium and Neon isotopes in the Imnaha Basalt, Columbia River Basalt group: Evidence for a Yellowstone plume source. Earth Planet. Sci. Lett. 150: 443-451 (1997) (Available at
  • Lassiter, J.C. and D.J. DePaolo, Plume/Lithosphere Interaction in the Generation of Continental and Oceanic Flood Basalts: Chemical and Isotopic Constraints. In Large Igneous Provinces: Continental, Oceanic, and Planetary Flood Volcanism, J. J. Mahoney, M. F. Coffin, Editors, Am. Geophys. Union; Geophysical Monograph Series 100 (1997)
  • Farmer, G.L. and D.J. DePaolo, Sources of Hydrothermal Components: Heavy Isotopes. In The Geochemistry of Hydrothermal Ore Deposits, 3rd edition, Barnes, H.L. (ed.), Wiley Interscience, pp. 31-61 (1997)
  • Skulan, J. and D.J. DePaolo, Biological control of Calcium isotopic fractionation. Geochim. Cosmochim. Acta 61: 2505-2510 (1997) (Available at
  • Sims, K.W.W. and D.J. DePaolo, Inferences about mantle magma sources from incompatible element concentration ratios in oceanic basalts. Geochim. Cosmochim. Acta 61: 765-784 (1997) (Available at
  • Johnson, T.M. and D.J. DePaolo, Rapid exchange effects on isotope ratios in groundwater systems, 2. Flow investigation using Sr isotope ratios. Water Resources Research 33: 197-205 (1997)
  • Johnson, T.M. and D.J. DePaolo, Rapid exchange effects on isotope ratios in groundwater systems, 1. Development of a transport-dissolution-exchange model. Water Resources Research 33: 187-195 (1997)
  • Kennedy B.M., Kharaka Y.K., Evans W.C., Ellwood A., DePaolo D.J., Thordsen J., Ambats G., and Mariner R.H., Mantle fluids in the San Andreas fault system. California. Science 278: 1278-1281 (1997) (Available at
  • Dodson A., Kennedy B.M., and DePaolo D.J. (1997), Helium and neon isotopes in the Imnaha Basalt, Columbia River Basalt Group: Evidence for a Yellowstone Plume Source. Earth Planet. Sci. Lett. 150: 443-451 (1997) (Available at
  • Conrad, M.E., P.F. Daley, M.F. Fischer, B.B. Buchanan, T. Leighton, and M. Kashgarian, 1997, Combined 14C and d13C monitoring of in situ biodegradation of petroleum hydrocarbons: Environ. Sci. Technol. 31, 1463-1469. 1997
  • Conrad, M.E., D.M Thomas, S. Flexser, and T.W. Vennemann, 1997, Fluid flow and water-rock interaction in the East Rift Zone of Kilauea Volcano, Hawaii: J. Geophys. Res. 102, 15021-15037. 1997
  • Anderson, S.P., W.E. Dietrich, D.R. Montgomery, R. Torres, M.E. Conrad, and K. Loague, 1997, Subsurface flow paths in a steep unchanneled catchment: Water Resources Res. 33, 2637-2653  



  • DePaolo, D.J. and S.R. Getty, Models of isotopic exchange in reactive fluid-rock systems: Implications for geochronology in metamorphic rocks. Geochim. Cosmochim. Acta 60: (20) 3933-3947 (1996)
  • Chen, C.-H, D.J. DePaolo, and C.-Y. Lan, Rb-Sr microchrons in the Manaslu Granite: Implications for Himalayan thermochronology. Earth Planet. Sci. Lett. 143: 125-135 (1996)
  • DePaolo, D.J., E.M. Stolper, D.M. Thomas, et al., The Hawaii Scientific Drilling Project: Summary of Preliminary Results. GSA Today 6(8): 1-8 (1996)
  • Johnson, T.M. and D.J. DePaolo, Reaction-transport models for radiocarbon in groundwater: The effects of dispersive transport and the use of Sr isotope ratios to correct for water-rock interaction. Water Resources Research 32: 2203-2212 (1996)
  • Wendlandt, E., W.S. Baldridge and D.J. DePaolo, Thermal history of Colorado Plateau lower crust from Sm-Nd mineral geochronology of xenoliths. Geol. Soc. Am. Bull. 108: 757-767 (1996)
  • Stolper, E.M., DePaolo, D.J. and Thomas, D.M., The Hawaii Scientific Drilling Project: Introduction to the Special Section. J. Geophys. Res. 101: 11593-11598 (1996)
  • Hauri, E.H, J.C. Lassiter, D.J. DePaolo and J.M. Rhodes, Osmium isotope systematics of drilled lavas from Mauna Loa, Hawaii. J. Geophys. Res. 101: 11793-11806 (1996)
  • Kurz, M.D.,T.C. Kenna, J.C. Lassiter and D.J. DePaolo, Helium isotopic evolution of Mauna Kea volcano: First results from the 1 km drill core. J. Geophys. Res. 101: 11781-11791 (1996)
  • Lassiter, J.C., D.J. DePaolo, and M. Tatsumoto, Isotopic evolution of Mauna Kea volcano: Results from the initial phase of the Hawaii Scientific Drilling Project. J. Geophys. Res. 101: 11769-11780 (1996)
  • DePaolo, D.J. and Stolper, E.M., Models of Hawaiian volcano growth and plume structure: Implications of results from the Hawaii Scientific Drilling Project. J. Geophys. Res. 101: 11643-11654 (1996)
  • DePaolo, D.J., High frequency isotopic variations in the Mauna Kea tholeiitic basalt sequence: melt zone dispersivity and chromatography. J. Geophys. Res. 101: 11855-11864 (1996)
  • Stewart, B.M. and D.J. DePaolo, Isotopic studies of processes in mafic magma chambers: III. The Muskox Intrusion, Northwest Territories, Canada. In Earth Processes, Reading the isotopic code, Basu, A.S.(ed.), Geophysical Monograph 95, Am. Geophys. Union, pp. 277-292 (1996)



  • Norman, E.B., S. Bhaskar, K.T. Lesko, R.-M. Larimer, D.J. DePaolo and T.L. Owens, An improved test of the exponential decay law. Physics Lett. B 357: 521-525 (1995)
  • Lassiter, J.C., and D.J. DePaolo, Geochemistry of the Wrangellia Flood Basalt Province: Implications for the Role of Continental and Oceanic Lithosphere in Flood Basalt Genesis. J. Petrology 36: 983-1009 (1995)
  • Getty, S.J. and D.J. DePaolo, Quaternary geochronology by the U-Th-Pb method. Geochim. Cosmochim. Acta 59: 3267-3272 (1995)
  • Schrag, D.P., D.J. DePaolo and F.M. Richter, Reconstructing past sea surface temperatures – correcting for diagenesis of bulk marine carbonate. Geochim. Cosmochim. Acta 59: 2265-2278 (1995)
  • Sims, K.W.W., D.J. DePaolo, M.T. Murrell, W.S. Baldridge, S.J. Goldstein and D.A. Clague, Mechanisms of Magma Generation Beneath Hawaii and Mid-Ocean Ridges: U-Th and Sm-Nd Isotopic Evidence. Science 267: 508-512 (1995) 



  • Christensen, J.N., J. Selverstone, J.L. Rosenfeld, and D.J. DePaolo, Correlation by Rb-Sr geochronology of garnet growth histories from different structural levels within the Tauern Window, Eastern Alps. Contrib. Mineral. Petrol. 118: 1-12 (1994)
  • Johnson, T.M. and D.J. DePaolo, Interpretation of isotopic data in groundwater-rock systems: model development and application to Sr isotopic data from Yucca Mountain.Water Resources Res. 30: 1571-1587 (1994)
  • Borg, S.G. and D.J. DePaolo, Laurentia, Australia, and Antarctica as part of a Late Proterozoic supercontinent: Constraints from isotopic mapping of continental crustal provinces. Geology 22: 307-310 (1994)



  • Perry, F.V., D.J. DePaolo, and W.S. Baldridge, Neodymium isotopic evidence for decreasing crustal contributions to Cenozoic ignimbrites of the western United States: Implications for the thermal evolution of the Cordilleran crust. Geol. Soc. Am. Bull. 105: 872-882 (1993)
  • Ingram, B. L. and D. J. DePaolo, A 4,500-year strontium-isotope record of paleosalinity and freshwater inflow in San Francisco Bay, California. Earth Planet. Sci. Lett. 119: 103-119 (1993)
  • Chen, C.-H., D.J. DePaolo, S. Nakada, and Y.-N. Shieh, Relationship between eruption volume and Nd isotopic composition in dacite of Unzen volcano, Japan. Nature 362: 831-834 (1993)
  • Schrag, D.P. and D.J. DePaolo, Determination of δ18O of seawater in the deep ocean during the last glacial maximum. Paleoceanography 8: 1-6 (1993)
  • Linn, A. M. and D.J. DePaolo, Provenance Controls on the Nd-Sr-O Isotopic Composition of Sandstones: Example from Late Mesozoic Great Valley Forearc Basin, California. GSA Special Paper 284: Processes controlling the composition of clastic sediments, pp. 121-133 (1993)
  • Christensen, J.N., and D.J. DePaolo, Timescales of Large Volume Silicic Magma Systems: Sr Isotopic Systematics of Phenocrysts and Glass from the Bishop Tuff, Long Valley, California. Contrib. to Mineral. and Petrol. 113: 100-114 (1993)
  • Wendlandt, E., D.J. DePaolo, and W.S. Baldridge, Nd and Sr Isotope Chronostratigraphy of Colorado Plateau Lithosphere: Implications for Magmatic and Tectonic Underplating of the Continental Crust. Earth Planet. Sci. Lett. 116: 23-43 (1993)  



  • Linn, A.M., D.J. DePaolo, and R.V. Ingersoll, Nd-Sr isotopic, geochemical, and petrographic stratigraphy and paleotectonic analysis: Mesozoic Great Valley forearc sedimentary rocks of California. Geological Soc. Am. Bull. 104: 1264-1279 (1992)
  • DePaolo, D.J., F.V. Perry, and W.S. Baldridge, Crustal versus mantle sources of granitic magmas: A two-parameter model based on Nd isotopic studies. Earth Sci. Trans. Royal Soc. Edinburgh 83: 439-446 (1992)
  • Stewart, B.W., and D.J. DePaolo, Diffusive Isotopic Contamination of Mafic Magma by Coexisting Silicic Liquid in the Muskox Intrusion, Northwest Territories, Canada. Science 255: 708-711 (1992)
  • Schrag, D.P., D.J. DePaolo, and F.M. Richter, Oxygen Isotope Exchange in a Two-Layer Model of Oceanic Crust. Earth Planet. Sci. Lett. 111: 305-317 (1992)
  • Daley, E.E., and D.J. DePaolo, Isotopic Evidence for Contrasting Upper Crust and Lower Lithosphere Strain Histories During Extension: SE Great Basin. Geology 20: 104-108 (1992)
  • Richter, F.M., D.B. Rowley, and D.J. DePaolo, Sr Isotope Evolution of Sea Water: The Role of Tectonics. Earth Planet. Sci. Lett. 109: 11-23 (1992)



  • Richards, M.A., D.L. Jones, R.A. Duncan, and D.J. DePaolo, A Mantle Plume Initiation Model for the Wrangellia Flood Basalt and Other Oceanic Plateaus. Science 254: 263-267 (1991)
  • DePaolo, D.J., E.M. Stolper, and D.M. Thomas, Scientific opportunites from Deep Drilling in Hawaii. Part I: Physics and chemistry of plume-lithosphere interactions. EOS Transactions 72: 236-237 (1991)
  • Linn A.M., D.J. DePaolo, and R.V. Ingersoll, Nd-Sr Isotopic Provenance Analysis of Upper Cretaceous Great Valley Fore-arc Sandstones. Geology 19: 803-806 (1991)
  • Borg, Scott G., and D.J. DePaolo, A Tectonic Model of the Antarctic Gondwana Margin with Implications for Southeastern Australia: Isotopic and Geochemical Evidence. Tectonophysics 196: 339-358 (1991)
  • DePaolo, D.J., A.M. Linn, and G. Schubert, The Continental Crustal Age Distribution: Methods of Determining Mantle Separation Ages From Sm-Nd Isotopic Data And Application To The Southwestern U.S. J. Geophys. Res. 96: 2071-2088 (1991)
  • DePaolo, D.J., Finger, K.L., High resolution strontium isotope stratigraphy and biostratigraphy of the Miocene Monterey Formation, central California. Bull. Geol. Soc. Am. 103: 112-124 (1991)
  • Perry, F.V., W.S. Baldridge, D.J. DePaolo and M. Shafiqullah, Evolution of a magmatic system during continental extension: The Mount Taylor volcanic field, New Mexico. J. Geophys. Res. 95: 19327-19348 (1991)  



  • Capo, R.C., and D.J. DePaolo, Seawater Strontium Isotopic Variations: 2.5 Ma to the Present. Science 249: 51-55 (1990)
  • Borg, S.G., D.J. DePaolo and B.M. Smith, Isotopic structure and tectonics of the Central Transantarctic Mountains. J. Geophys. Res. 95: 6647-67(1990)
  • Stewart, B.M. and D.J. DePaolo, Isotopic studies of processes in mafic magma chambers: II. The Skaergard Intrusion, East Greenland. Contrib. Mineral. Petrol. 104: 125-141 (1990)



  • Christensen, J.N., J.L. Rosenfeld and D.J. DePaolo, Rates of tectonometamorphic processes from rubidium and strontium isotopes. Science 244: 1465-1469 (1989)
  • Farmer, G.L., S. Semken, B. Crowe, F.V. Perry, D. Curtis, D.J. DePaolo, Isotopic evidence regarding the structure and origin of subcontinental lithospheric mantle in the southern Great Basin. J. Geophys. Res. 94: 7885-7898 (1989)
  • Musselwhite, D.M., D.J. DePaolo and M.J. McCurry, The evolution of a silicic magma system: Isotopic and chemical evidence from the Woods Mountains Volcanic Center, eastern California. Contrib. Mineral. Petrol. 101: 19-29 (1989)
  • Marshall, B.D. and D.J. DePaolo, Calcium isotopes in igneous rocks and the origin of granite. Geochim. Cosmochim. Acta 53: 917-922 (1989)  



  • Richter, F.M. and D.J. DePaolo, Diagenesis and Sr isotopic evolution of seawater using data from DSDP 590B and 575. Earth Planet. Sci. Lett. 90: 382-394 (1988)
  • Perry, F.V., Baldridge, W.S., DePaolo, D.J., Chemical and isotopic evidence for lithospheric thinning beneath the Rio Grande rift. Nature 332: 432-434 (1988)
  • DePaolo, D.J., Neodymium Isotope Geochemistry: An Introduction, Springer-Verlag, Heidelberg, 187 pp (1988)
  • DePaolo, D.J., Age dependence of the composition of continental crust as determined from Nd isotopic variations in igneous rocks. Earth Planet. Sci. Lett. 59: 263-271 (1988)
  • Nelson, B.K. and D.J. DePaolo, Comparison of Isotopic and Petrographic Provenance Indicators in Sediments from Tertiary Continental Basins of New Mexico. J. Sed. Petrol. 58: 348-357 (1988)