Mark Conrad

Publications

Journal Articles/Book Sections

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, 2002, Assessment of in-situ bioremediation at a refinery waste-contaminated site and an aviation gasoline contaminated site: Biodegradation 13, 79-90.

Song, D.L., M.E. Conrad, K.S. Sorenson and L. Alvarez-Cohen, 2002, Stable carbon isotope fractionation during enhanced in-situ bioremediation of trichloroethene: Environ. Sci. Technol. 36, 2262-2268.

Byrne, R., B.L. Ingram, S. Starratt, F. Malamud-Roam, J.N. Collins, and M.E. Conrad, 2001, 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.

Conrad, M.E., and B. Faybishenko, 2000, Isotopic tracers of flow and transport through the vadose zone: In eds., Looney, B., and R. Falta, Vadose Zone Technology and Science Solutions, Batelle Press, Columbus, OH, 298-303.

Geller, J.T., H.-Y. Holman, G. Su, T-S. Liou, M.E. Conrad, K. Pruess, and J.C. Hunter-Cevera, 2000, Flow dynamics and potential for biodegradation of organic contaminants in fractured rock vadose zone: J. Contaminant Hydrology 33, 63-90.

Conrad, M.E., A.S. Templeton, P.F. Daley, and L. Alvarez-Cohen, 1999, Seasonally-induced fluctuations in microbial production and consumption of methane during bioremediation of aged subsurface refinery contamination: Environ. Sci. Technol. 33, 4061-4068.

Conrad, M.E., A.S. Templeton, P.F. Daley, and L. Alvarez-Cohen, 1999, Isotopic evidence for biological controls on migration of petroleum hydrocarbons: Org. Geochem. 30, 843-859.

Compton, J.S., M.E. Conrad, and T.W. Vennemann, 1999, Stable isotope evolution of volcanic ash layers during diagenesis of the Miocene Monterey Formation, California: Clays and Clay Min. 47, 84-95.

Ingram, B.L., P. De Deckker, A.R. Chivas, M.E. Conrad, and A.R. Byrne, 1998, Stable isotopes, Sr/Ca, and Mg/Ca in biogenic carbonates from Petaluma Marsh, northern California, USA: Geochim. et Cosmochim. Acta 62, 3229-3237.

Ryan, P.C., M.E. Conrad, K. Brown, C.P. Chamberlain, and R.E. Reynolds, 1998, 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.

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.

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.

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.

Ingram, B.L., J.C. Ingle, and M.E. Conrad, 1996, Stable isotope record of late Holocene salinity and river discharge in San Francisco Bay, California: Earth and Plan. Sci. Lett. 141, 237-247.

Ingram, B.L., J.C. Ingle, and M.E. Conrad, 1996, A 2000 yr record of Sacramento-San Joaquin river inflow to San Francisco Bay estuary, California: Geology 24, 331-334.

Thomas, D.M., F.L. Paillet, and M.E. Conrad, 1996, Hydrogeology of the HSDP borehole KP-1, Part II: Ground-Water geochemistry and regional flow patterns: J. Geophys. Res. 101, 11683-11694.

Ingram, B.L., M.E. Conrad, and J.C. Ingle, 1996, Stable isotope and salinity systematics in estuarine waters: San Francisco Bay: Geochim. et Cosmochim. Acta 60, 455-467.

Conrad, M.E., J.R. O'Neil, and U. Petersen, 1995, The relation between widespread ¹⁸O-depletion patterns and precious metal mineralization in the Tayoltita mine of Durango, Mexico: Econ. Geol. 90, 322-342.

Macfarlane, A.W., R. Prol-Ledesma, and M.E. Conrad, 1994, Isotope and fluid inclusion studies of the geological and hydrothermal evolution of the Hualgayoc district, northern Peru: International Geology Review 36, 645-677.

Chamberlain, C.P., and M.E. Conrad, 1993, Oxygen-isotope zoning in garnet: A record of volatile transport: Geochim. et Cosmochim. Acta 57, 2613-2630.

Conrad, M.E., and C.P. Chamberlain, 1992, Laser-based, in situ measurements of fine-scale variations in the d¹⁸O values of hydrothermal quartz: Geology 20, 812-816.

Conrad, M.E., U. Petersen, and J.R. O'Neil, 1992, Evolution of an Au-Ag producing hydrothermal system: The Tayoltita mine, Durango, Mexico: Econ. Geol. 8, 1451-1474.

Chamberlain, C.P., and M.E. Conrad, 1991, Oxygen isotope zoning in garnet: Science 254,403-406.

Chamberlain, C.P., and M.E. Conrad, 1991, The relative permeabilities of quartzites and schists at mid-crustal levels: Geophys. Res. Lett. 18, 959-962.

Conrad, M.E., and H.R. Naslund, 1989, Modally-graded rhythmic layering in the Skaergaard intrusion: J. Petrology. 30, 251-269

Recent Abstracts

Conrad, M.E., D.J. DePaolo, and K. Maher, 2001, Isotope tracking of unsaturated zone processes at Hanford, Washington: 4^th International Symposium on Applied Isotope Geochemistry, Prog. and Abstr., 52-54.

Conrad, M.E., and E.L. Sonnenthal, 2001, Isotopic constraints on the thermochemical evolution of the drift-scale heater test at Yucca Mountain: In Eleventh Annual V.M. Goldschmidt Conference, Abstract #3722, LPI Contribution No. 1088, Lunar and Planetary Institute, Houston (CD-ROM).

Sonnenthal, E.L., N. Spycher, J. Apps, and M.E. Conrad, 2001, A conceptual model for reaction-transport processes in unsaturated fractured rocks at Yucca Mountain: Model validation using the drift scale heater test: In Eleventh Annual V.M. Goldschmidt Conference, Abstract #3814, LPI Contribution No. 1088, Lunar and Planetary Institute, Houston (CD-ROM).

Chu, K. H., D. Song, M. Conrad, and L. Alvarez-Cohen, 2001, Stable carbon isotope fractionation of vinyl chloride (VC) during aerobic biodegradation: Am. Soc. Microbiology General Meeting.

Sonnenthal, E., N. Spycher, J. Apps, and M. Conrad, 2000, Assessment of water-rock and fracture-matrix interaction based on reaction-transport modeling of a large-Scale thermal test at Yucca Mountain.: EOS, Trans., Am. Geophys. Union 81, no. 48, F407.

Conrad, M.E., and D.J. DePaolo, 2000, The Use of Non-radioactive Isotope Tracers to Simulate Migration of Radionuclides in the Subsurface at the Hanford Site, Washington: EOS, Trans., Am. Geophys. Union 81, no. 48, F387.

Conrad, M.E., D.J. DePaolo, and P. Evan Dresel, 2000, Natural isotopic tracers of infiltration through the vadose zone at the Hanford site, Washington: EOS, Trans., Am. Geophys. Union 81, no. 19, S230.

Chu, K. H., D. Song, M. E. Conrad, and L. Alvarez-Cohen, 2000, Fractionation of stable carbon isotopes during the biodegradation of chlorinated solvents: Second International Conference: Remediation of Chlorinated and Other Recalcitrant Compounds, Monterey, California.

Conrad, M.E., W.S. Stringfellow, and G.M. Lamble, 1999, Uptake and precipitation of metals from basalt by the lichen Stereocaulon volcanii: Geol. Soc. Am., Abst. with Prog. 31, no. 7, A393.