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Aqueous Crystal Growth and Dissolution Kinetics of Earth Surface Materials

Welcome

Activities for Teachers and Students:

• Preserving and Protecting Monuments and Historical Sites

• Stone Erosion by Acid Rain

• Limestone and Marble Characterization to Model Damage for Acidic Precipitation

Current Research Activities:

Data Reports

• Summary of Chemical Data from Onsite and Laboratory Analyses of Ground-Water Samples from the Surficial Aquifer, Las Vegas, Nevada, April and August 1993 And September 1994 (Data Report)
• Summary of Data From Onsite and Laboratory Analyses of Surface Water and Marsh Porewater from South Florida Water Management District Water Conservation Areas, The Everglades, South Florida, March 1995 (Data Report)
• Oxygen-18 and Deuterium Content of Incident and Throughfall Precipitation at a High-Altitude Site, San Juan Mountains, Colorado (Data Report)

Publications

• Abbott,M., Einerson, J., Schuster, P., Susong, D., and Taylor, H.E., 2004, Trace elements and common ions in southeastern Idaho snow: regional air pollutant traces for source area emissions: Fuel Processing Technology: v. 85, no. 6-7, p. 657-671. (on-line abstract)

• Amjad,Z., Pugh, J., Reddy, M.M., 1998, Kinetic inhibition of calcium carbonate crystal growth in the presence of natural and synthetic organic inhibitors, in Water Soluble Polymers, ed., Amjad, Z., Plenum Press, New York, p. 131-147. (electronic file)

• Brabets, T.P., and Schuster, P.F., 2008, Transport of water, carbon, and sediment through the Yukon River Basin: U.S. Geological Survey Fact Sheet 2008-3005. (on-line fact sheet or on-line fact sheet in pdf format, 934 KB)

• Campbell, D.H., Mast, M.A., Ingersoll, G.P., Manthorne, D., Krabbenhoft, D.P., Taylor, H.E., Airen, G.R., Schuster, P.F., and Reddy, M.M., 2004, Atmospheric Deposition and fate of mercury in high-altitude watersheds of the Rocky Mountains: EOS Transactions, American Geophysical Union, v. 84, p. 46.

• Campbell, D.H., Baron, J., Tonnessen, K.A., Brooks, P.D., and Schuster, P.F., 2000, Controls on nitrogen flux in alpine/subalpine watersheds of Colorado: Water Resources Research, v. 36, p. 37-47.

• Criss,R.E. and Winston,W.E., 2006, Comment on "M.M. Reddy, P. Schuster, C. Kendall and M. B., Reddy, Characterization of surface and round water δ^l8O seasonal variation and its use for estimating groundwater residence times: Hydrological Processes: v. 20, p. 3567-3572.

• Doe, B. R., Reddy, M. M., and Eggleston, J. R. Pollution damage to the Powell Building, Reston, Virginia, Materials Performance: v. 38, no. 12, December 1999, p. 64-69. (electronic file)

• Dornblaser, Mark M. and D.R. Halm, eds., 2006, Water and sediment quality of the Yukon River and its tributaries, from Eagle to St. Marys, Alaska, 2002-2003: U.S. Geological Survey Open-File Report 2006-1228, 201 p., Boulder, CO. (on-line abstract or on line report in pdf format, 18 MB)
  

• Halm, D.R., Beaver, L.D., Leavesley, G.H., Reddy, M.M., 2009, Meteorological Data near Rabbit Ears Pass, Colorado, U.S.A., 1984-2008, Data Series 415, p. 1-2. (on-line report)and (on-line pdf)
• Halm, D.M., and M. M. Dornblaser, 2007,Water and sediment quality in the Yukon River and its tributaries between Atlin, British Columbia, Canada, and Eagle, Alaska, USA, 2004: USGS Open File Report 1197-2007, p. 120. (on-line report) and (on-line pdf).
• Harvey, J.W., Krupa, S.L., Choi, J., Gefvert, C., Mooney, R.H., Schuster, P.F., Bates, A.L., King, S.A., Reddy, M.M., Orem, W.H., Krabbenhoft, D.P., and Fink, L.E., 1999, Hydrologic exchange of surface water and ground water and its relation to surface water budgets and water quality in the Everglades: U.S. Geological Survey Program on the South Florida Ecosystem--Proceedings of the South Florida Restoration Science Forum, May 17-19, 1999, Boca Raton, Florida, U.S. Geological Survey Open-File Report 99-181, p. 36.

• Hoch, A. R., Reddy, M. M. and Drever, J. I., 1999, Importance of mechanical disaggregation in chemical weathering in a cold alpine environment, San Juan Mountains, Colorado. Geological Society of America Bulletin, Feb. 1999, v. 111, no. 2, p. 304-314. (electronic file)

• Hoch, A.R., Reddy, M.M., 2001, Water chemistry at Snowshoe Mountain, Colorado: Mixed Processes, in Cidu, R., ed., Proceedings of the tenth international symposium WRI-10, Villasimius, Italy, 10-15 June 2001: Lisse, The Netherlands, A.A. Balkema, v. 1, p. 533-536. (on-line report)

• Hoch, A.R., Reddy, M.M., Aiken, G.R., 2000, Calcite crystal growth inhibition by humic substnaces with emphasis on hydrophobic acids from the Florida Everglades: Geochimica et Cosmochimica Acta, v. 65, no.1, p. 61-72. (electronic file) or (on-line abstract)

Hoch, A.R., Reddy, M.M., and Heymans, M.J., 2000, Transient calcite fracture fillings in a welded tuff, Snowshoe Mountain, Colorado: Applied Geochemistry, v. 15, no. 10, p. 1495-1504. (on-line abstract)

• Hoch, A.R., Reddy, M.M., and Drever, J.I., 1996. The effect of iron content and dissolved O₂ on dissolution rates of cliniopyroxene at pH 5.8 and 25^oC: preliminary results: Chemical Geology, v. 102, p. 151-156. (on-line abstract)

• Kile, D.E., Eberl, D.D., Hoch, A.R., and Reddy, M.M., 2000, An assessment of calcite crystal growth mechanisms based on crystal size distributions: Geochimica et Cosmochimica Acta, v. 64, no. 17, p. 2937-2950. (on-line abstract) and (electonic file)

• Klepetsanis, P. G., Kladi, A., Ostvold, T., Kontoyiannis, C. G., Koutsoukos, P. G., Amjad, Z, and Reddy, M. M.,, in Amjad, Z., ed., Advances in crystal growth inhibition technologies: New York, Kluwer Academic/Plenum Publishers, p. 123-137. (electronic file)

• Krabbenhoft, D., and Schuster, P., 2002, Glacial ice cores reveal a record of natural and anthropogenic atmospheric deposition for the last 270 years: U.S. Geological Survey Fact Sheet 051-02. (on-line fact sheet)

(on-line report)
• Leith, S.D., Reddy, M.M., Ramirez, W.F., 1997, Modeling damage to limestone exposed to atmospheric pollutants: Mat. Res. Soc. Symp. Proc., v. 462, p. 337-342.

• Leith, S.D., Reddy, M.M., Ramirez, W.F., and Heymans, M.J., 1996, Limestone characterization to model damage from acidic precipitation: effect of pore structure on mass transfer: Environmental Science and Technology, v. 30, no. 7, p. 2202-2210. (on-line abstract) or (electronic file)

• Leenheer, J.A., and Reddy, M.M., 2008, Co-precipitation of dissolved organic matter by calcium carbonate in Pyramid Lake, Nevada: Annals of Environmental Science, v. 2, p. 11-25. (electronic file) and (on-line pdf)
• Leenheer, J.A., Wershaw, R.L., Brown, G.K., and Reddy, M.M., 2003, Characterization and diagenesis of strong-acid carboxyl groups in humic substances: Applied Geochemistry, v. 18, p. 471-482. (on-line journal article)

• Leenheer, J.A., Wershaw, R.L., and Reddy, M.M., 1995, Strong acid carboxyl-group structures in fulvic acid from the Suwannee River, Georgia. 1. Minor structures. Environmental Science & Technology, v. 29, no. 2, p. 393-398. (electronic file)

• Leenheer, J.A., Wershaw, R.L., and Reddy, M.M., 1995, Strong acid carboxyl-group structures in fulvic acid from the Suwannee River, Georgia. 2. Major structures. Environmental Science and Technology, v. 29, no. 2, p. 399-405. (electronic file)

• Marinsky, J.A., Mathuthu, A., Ephraim, J.H., and Reddy, M.M., 1999, Calcium ion binding to a soil fulvic acid using a Donnan potential: Radiochimica Acta, v. 84, p. 205-211. (on-line abstract) or (electronic file)

• Marinsky, J.A., M.M. Reddy, J.H. Ephraim and A.S. Mathuthu, 1995. Computational scheme for the prediction of metal ion binding by a soil fulvic acid: Analytica Chemica Acta v. 302, no. 1, p. 309-322. (electronic file)

• Marinsky, J.A. and Reddy, M.M., 1991, Employment of Gibbs-Donnan-based concepts for interpretation of the properties of linear polyelectrolyte solutions: Journal of Physical Chemistry, v. 95, no. 24, p. 10208-10214. (electronic file)

• Marinsky, J.A., Baldwin, R. and Reddy, M.M., 1985, Interpretation with a Donnan-based concept of the simple salt concentration on the apparent binding of divalent ions to the polyelectrolytes, polystyrene sulfonate and dextran sulfate: J. Physical Chemistry, v. 89, no. 24, 1985, p. 5303-5307. (electronic file)

• Marinsky, J.A. and Reddy, M.M., 1984, Proton and metal ion binding to natural organic polyelectrolytes. II. Preliminary investigation with a peat and humic acid: Organic Geochemistry, v. 7, no. 3/4, p. 215-221. (electronic file)

• Marinsky, J.A. and Reddy M.M., 1984, Proton and metal ion binding to natural organic polyelectrolytes. I. Studies with synthetic model compounds: Organic Geochemistry, v. 7, no. 3/4, p. 207-214. (electronic file)

• McConnaughey, T.A., LaBaugh, J.W., Reddy, M.M., Schuster, P.F., Rosenberry, D.O., Striegl, R.G. and Carter, V., 1994, Carbon budget for a groundwater-fed lake: Calcification supports summertime photosynthesis: Limnology and Oceanography, v. 39, no. 6, p. 1319-1332. (electronic file) .

• McConnaughey, T.A., LaBaugh, J.W., Schuster, P.F., Carter, V., Striegl, R.G., Reddy, M.M., and Rosenberry, D.O. 1997, The role of calcification in macrophyte photosynthesis in Williams Lake, in Winter, T.C., ed., Interdisciplinary Research Initiative: Hydrological and biogeochemical research in the Shingobee River headwaters area, north-central Minnesota: U.S. Geological Survey Water Resources Investigations Report 96-4215, p. 89-96. (electronic file)

• Moore, R.S., Taylor, D.H., Sturman, L.S., Reddy, M.M., Fuhs, G. Wolfgang, 1981, Poliovirus adsorption by 34 minerals and soils, Applied and Environmental Microbiology, v. 42, no. 6, p. 963-975.

• Naftz, D.L., Susong, D.D., Cecil, L.D., Schuster, P.F., 2004, Variations between δ^l8O in recently deposited snow and on-site air temperature, Upper Fremont Glacier, Wyoming, in Cecil, L.D., Green, J.R., and Thompson, L.G., eds., Earth paleoenvironments--Records preserved in mid-and low-latitude glaciers: Kluwer Academic Publishers, v. 9, p. 217-234. (on-line introduction)

• Naftz, D.L., Susong, D.D., Schuster, P.F., Cecil, L.D., Dettinger, M.D., Michel, R.L., and Kendall, C., 2002, Ice core evidence of rapid air temperature increases since 1960 in alpine areas of the Wind River Range, Wyoming, United States: Journal of Geophysical Research, v. 107, p. ACL 3-1 - ACL 3-15. (on-line abstract)

• Naftz, D.L., Klusman, R.W., Michel, R.L., Schuster, P.F., Reddy, M.M., Taylor, H.E., Yanosky, T.M., McConnaughey, E.A., 1996, Little Ice Age evidence froma south-central North American ice core, U.S.A.: Arctic and Alpine Research, v. 28(1), p. 35-41. (on-line article)

• Ravichandran, M., Aiken, G., Ryan, J.N., and Reddy, M.M., 1999, Inhibition of precipitation and aggregation of metacinnabar (mercuric sulfide) by dissolved organic matter isolated from the Florida Everglades: Environmental Science & Technology, v. 33, n. 9, p. 1418-1423. (on-line abstract)

• Ravichandran, Mahalingam, Aiken, G., Reddy, M.M., and Ryan, J.N., 1998, Enhanced dissolution of cinnabar (mercuric sulfide) by dissolved organic matter isolated from the Florida Everglades: Environmental Science and Technology, v. 32, no., 21, p. 3305-3311. (electronic file) or (on-line pdf report)(133Kb)

• Ravichandran, M., Aiken, G., Ryan, J. N., and Reddy, M. M. 1999, Inhibition of precipitation and aggregation of metacinnabar (mercuric sulfide) by dissolved organic matter isolated from the Florida Everglades: Environmental Science & Technology, v. 33, no. 9, p. 1418-1423. (electronic file) or (on-line abstract)

• Reddy, M.M., Reddy, M.B., Kipp, K.L., Burman, A., Schuster, P., Rawlik, Jr., P.S., 2008, Peat porewater chloride concentration profiles in the Everglades during wet/dry cycles from January 1996 to June 1998--field measurements and theoretical analysis: Hydrological Processes, v. 22, p. 1713-1724. (electronic file), on-line abstract or on-line article in pdf format, 244 KB, published by John Wiley & Sons, Ltd, as a US Government work in the public domain)
  

• Reddy, M.M., Schuster, P., Kendall, C., and Reddy, M.B., 2006, Characterization of surface and ground water δ^l8O seasonal variation and its use for estimating groundwater residence times: Hydrological Processes, v. 20, no. 8, p. 1753-1772. (on-line abstract of journal article).

• Reddy, M. M., Schuster, P., Kendall, C., and Reddy, M.B., 2006, Reply to comment on "Characterization of surface and ground water δ^l8O seasonal variation and its use for estimating groundwater residence times" by R.E. Criss, and W.E. Winston: Hydrological Processes, v. 20, no. 16, p. 3573-3578. (on-line pdf report),102 KB, published on-line in 2006 by John Wiley & Sons, Ltd as a U.S. Governement work in the public domain)

• Reddy, M.M., Reddy, M.B., Reddy, C.F., 2004, Scientific advances provide opportunities to improve pediatric environmental health: Journal of Pediatrics, v. 145, No. 2, p. 153-156. (on-line journal article)

• Reddy, M.M., and Schuster, P.F., 2003, Sediment concentration and percent organic matter (OM) analyses, in Schuster, P.F., ed., Water and sediment quality in the Yukon River Basin, Alaska, during water year 2001: U.S. Geological Survey Open-File Report 03-427, p. 55-56. (on-line report)

• Reddy, M.M., and Aiken, G.R., 2001, Fulvic acid-sulfide ion competition for mercury ion binding in the Florida Everglades: Water, Air and Soil Pollution, v.132, p. 89-104. (on-line report) or (on-line abstract)

• Reddy, M.M. and Hoch, A.R., 2001, Calcite crystal growth rate inhibition by polycarboxylic acids: Journal of Colloid and Interface Science, v. 235, p. 365-370. (on-line abstract) or (electronic file)

• Reddy, M.M., and Hoch, A.R., 2000, Calcite Crystal Growth Rate Inhibition by Aquatic Humic Substances: Advances in Crystal Growth Inhibition Technologies, in Amjad, Z., ed., Advances in crystal growth (on-line pdf)

• Reddy, M.M., Aiken, G., Schuster, P., 1999, Mercury-dissolved organic carbon interactions in the Florida Everglades: A field and laboratory investigation: U.S. Geological Survey Program on the South Florida Ecosystem--Proceedings of the South Florida Restoration Science Forum, Mary 17-19, 1999, Boca Raton, Florida: U.S. Geological Survey Open-File Report 99-181, p. 86-87.

• Reddy, M.M., 1997, Book review of chemical water treatment, principles and practice by H. Roques: Journal of Hydrology, v. 195, p. 385-388. (electronic file)

• Reddy, M.M., Schuster, P.F., Puckett, L., Meyers, T., 1997, Atmospheric input to the Shingobee River headwaters area, in Winter, T.C., ed., Interdisciplinary research initiative: Hydrological and biogeochemical researach in the Shingobee River headwateras area, north-central Minnesota: U.S. Geological Survey Water Resources Investigations Report 96-4215, p. 47-53. (electronic file)

• Reddy, M.M., 1995, Reddy, M.M., Carbonate precipitation in Pyramid Lake, Nevada - Probable control by magnesium ion, ed., Zahid Amjad, Mineiral Scale Formation and Inhibition, Plenum Press, New York, p. 21-32. (electronic file)
• Reddy, M.M. and Leith, S.D., 1994. Dry deposition of sulfur to limestone and marble: Preliminary evaluation of a process based model: Proceedings of the 3rd International Symposium for the Conservation of Monuments in the Mediterranean Basin, Venice, Italy, June 22-25, 1994, p. 185-187. (electronic file)

• Reddy, M.M., 1988, Physical-chemical mechanisms that affect regulation of crystallization in chemical aspects of regulation of mineralization, in eds., C. Steven Sikes and A.P. Wheeler, Proceedings of a symposium sponsored by the Division of Industrial and Engineering Chemistry of the American Chemical Society, University of South Alabama Publications Services, Mobile, Alabama, p. 1-8. (electronic file)

• Reddy, M.M., 1986, Effect of magnesium ions on calcium carbonate nucleation and crystal growth in dilute aqueous solutions at 25^O Celsius, in Studies in Diageneses: U.S. Geological Survey Bulletin 1578, p. 169-182. (electronic file)

• Reddy, M.M., Sherwood, S. and Doe, B., 1985, Modeling limestone dissolution by acid rain, Proceedings of Research and Design 85 Symposium, Los Angeles, CA, March 14-18, 1985, The American Institute of Architects Foundation, Washington, D.C., p. 383-388. (electronic file)

• Reddy, M.M., Plummer, L. Niel, Busenberg, E., 1981, Crystal growth of calcite from calcium bicarbonate solutions at constant P_CO2 and 25^oC: A test of a calcite dissolution model: Geochimica et Cosmochimica Acta, v. 45, p. 1281-1289. (electronic file)

• Reddy, M.M., and Nancollas, G. H., 1971, The crystallization of calcium carbonate I. Isotopic exchange and kinetics: Journal of Colloid and Interface Science, v. 36, no. 2, p. 166-172. (electronic file)

• Rosenberry, D.O., Dean, W.E., Duff, J.H., LaBaugh, J.W., Reddy, M.M., Schuster, P.S., Striegl, R.G., Triska, F.J., and Winter, T.C., 2003, Exchange of water, solutes, and nutrients at the sediment-water interface affects a northern Minnesosta watershed at multiple scales: Proceedings of The First Interagency Conference on Research in the Watersheds, U.S. Department of Agriciulture, Agricultural Research Service, Benson, Arizona, Ocrober 27-30, 2003, p. 468-473. (on-line report)

• Schuster, P.F., Shanley, J.B., Marvin-Dipasquale, M., Reddy, M.M., Aiken, G.R., Roth, D.A., Taylor, H.E., Krabbenhoft, D. P., DeWild, J.F., 2008, Mercury and organic carbon dynamics during runoff episodes from a Northeastern USA watershed, Water, Air, Soil Pollutiono, v. 187, p. 89-108. (electronic file) and (on-line pdf report)

• Schuster, P.F., and Reddy, M.M., 2007, Anions, Halm, D.M., and M. M. Dornblaser, eds., Water and sediment quality in the Yukon River and its tributaries between Atlin, British Columbia, Canada, and Eagle, Alaska, USA, 2004: USGS Open File Report 1197-2007, pp. 71-73, (online pdf report).
• Schuster, P.F., and Reddy, M.M., 2007, Particulate carbon and particulate nitrogen, in Halm, D.M., and M. M. Dornblaser, eds., Water and sediment quality in the Yukon River and its tributaries between Atlin, British Columbia, Canada, and Eagle, Alaska, USA, 2004: USGS Open File Report 1197-2007, pp. 50-52, online publication: USGS Open File Report 1197-2007. (online pdf report).
• Schuster, P.F., and Reddy, M.M., 2007, Total particulate carbon, particulate inorganic carbon, particulate organic carbon, and total particulate nitrogen in Schuster, P.F., ed., Water and sediment quality in the Yukon River Basin, Alaska, during water year 2005, U.S. Geological Survey Report 2007-1037, Chapter 10, p. 58-59.( (on-line chapter in pdf format)

• Schuster, P.F., and Reddy, M.M., 2007, Sediment concentration and percent organic matter (OM) analyses, in Schuster, P.F., ed., Water and sediment quality in the Yukon River Basin, Alaska, during water year 2005: U. S. Geological Survey Report 2007-1037, Chapter 9, p. 56-57. (on-line chapter in pdf format)

• Schuster, P.F., 2007, Water and sediment quality in the Yukon River Basin, Alaska, during water year 2005: Open-file report 2007-1037, U.S. Geological Survey, p. 65. (on-line pdf report)

• Schuster, P.F., and Reddy, M.M., 2006, Major anions, inDornblaser, Mark M. and D.R. Halm, eds., 2006, Water and sediment quality of the Yukon River and its tributaries, from Eagle to St. Marys, Alaska, 2002-2003: U.S. Geological Survey Open-File Report 2006-1228, p. 134-138, Boulder, CO (on-line report in pdf format).

• Schuster, P.F., and Reddy, M.M., 2006, Percent organic matter, in Dornblaser, Mark M. and D.R. Halm, eds., Water and sediment quality of the Yukon River and its tributaries, from Eagle to St. Marys, Alaska, 2002-2003: U.S. Geological Survey Open-File Report 2006-1228, p. 93-97, Boulder, CO. on line report in pdf format (on-line report in pdf format).
• Schuster, P.F., and Reddy, M.M. 2006, Sediment concentration and percent organic matter (OM), in Schuster, P.F., ed., Water and sediment quality in the Yukon River Basin, Alaska, during water year 2004: U.S. Geological Survey Open-File Report 2006-1258, Chapter 9, p. 58-59. (on-line pdf report)

• Schuster, P.F., and Reddy, M.M., 2006, Total particulate carbon (TPC), particulate inorganic carbon (PIC), Particulate Organic Carbon (POC), and Total Particulate Nitrogen (TPN), in Schuster, P.F., ed., Water and sediment quality in the Yukon River Basin, Alaska, during water year 2004: U.S. Geological Survey Open-File Report 2006-1258, Chapter 10, p. 60-61. (on-line pdf report)

• Schuster, P.F., 2006, Introduction, in Schuster, P.F., ed., 2006, Water and sediment quality in the Yukon River Basin, Alaska, during water year 2004: U.S. Geological Survey Open-File Report 2006-1258, chapt. 1, p. 1-3. (on-line chapter in pdf format)

• Schuster, P.F.,2006, Water and sediment quality in the Yukon River Basin, Alaska, during water year 2004: U.S. Geological Survey Open-File Report 2006-1258, 82 p. (on-line pdf report)

• Schuster, P.F., and Reddy, M.M., 2005, Particulate carbon (PC) and particulate nitrogen, (PN), in Schuster, P.F., ed., Water and sediment quality in the Yukon River Basin, Alaska, during water year 2003: U.S. Geological Survey Report 2005-1397, Chapter 11, p. 68-69. (on-line pdf report)

• Schuster, P.F., and Reddy, M.M., 2005, Sediment concentration and percent organic matter (OM), in Schuster, P.F., ed., Water and sediment quality in the Yukon River Basin, Alaska, during water year 2003: U.S. Geological Survey Report 2005-1397, Chapter 10, p. 66-67. (on-line pdf report)

• Schuster, P.F., 2005, (ed.) Water and sediment quality in the Yukon River Basin, Alaska, during water year 2003: U.S. Geological Survey Report 2005-1397, 74 p. (on-line pdf report)

• Schuster, P.F., and Reddy, M.M., 2005, Sediment concentration and percent organic matter (OM), in Schuster, P.F., ed.,Water and sediment quality in the Yukon River Basin, Alaska, during water year 2002, Open-File report 2005-1199, U.S. Geological Survey, Chapter 10, p. 74-75. (on-line pdf)

• Schuster, P.F., and Reddy, M.M., 2005, Particulate carbon (PC) and particulate nitrogen, (PN), in Schuster, P.F., ed., Water and sediment quality in the Yukon River basin, Alaska, during water year 2002: U.S. Geological Survey Report 2005-1199, Chapter 11, p. 76-77. (on-line pdf)

• Schuster, P.F., ed., 2005, Water and sediment quality in the Yukon River Basin, Alaska, during water year 2002: U.S. Geological Survey Open-File Report 2005-1199, 82 p. (on-line pdf)

• Schuster, P.F., Reddy, M.M., Aiken, G.R., and Shanley, J.B., 2004, What effect does permafrost have on dissolved organic carbon transport to streams during snowmelt, in Wanty, R.B., and Seal, R.R., eds., Proceedings of the Eleventh International Symposium on Water - Rock Interaction WRI-11, 27 June - 2 July 2004, Saratoga Springs, New York, USA: London, Taylor & Francis, v. 2, p. 1385-1389. (on-line report)

• Schuster, P.F., Naftz, D.L., Cecil, L.D., and Green, J.R., 2004, Evidence of abrupt climate change and the development of an historic mercury deposition record using chronological refinement of ice cores at Upper Fremont Glacier, in Cecil, L.D., Green, J.R., and Thompson, L.G., eds., Earth paleoenvironments--Records preserved in Mid-and Low-Latitude glaciers: Dordrecht, Kluwer Academic Publishers, v. 9, p. 181-216.

• Schuster, P., Reddy,M., 2003, Kayaks down the Yukon - A 2,000-mile partnership with the USGS: U.S. Department of the Interior People, Land & Water, p. 39. (on-line article)

• Schuster, P.F., and Reddy, M.M., 2003, Particulate carbon (PC) and particulate nitrogen (PN), in Schuster, P.F., ed., Water and sediment quality in the Yukon River Basin, Alaska, during water year 2001: U.S. Geological Survey Open-File Report 03-427, Chapter 11, p. 57-58. (on-line pdf report)

• Schuster, P.F., and Reddy, M.M., 2003, Sediment concentration and percent organic matter (OM) analyses, in Schuster, P.F., Editor, Chapter 10, Water and sediment quality in the Yukon River Basin, Alaska, during water year 2001: Open-File Report 03-427, U.S. Geological Survey, p. 55-56. (on-line pdf report)

• Schuster, P.F., 2003, Water and sediment quality in the Yukon River Basin, Alaska, During Water Year 2001: U.S. Geological Survey Open-File Report 03-427 (pdf), p. 1-126. (on-line pdf report)

• Schuster, P.F., and Reddy, M.M., LaBaugh, J.W., Parkhurst, R.S., Rosenberry, D.O., Winter, T.C., Antweiler, R.C., and Dean, W.E., 2003, Characterization of lake water and ground water movement in the littoral zone of Williams Lake, a closed-basin lake in north central Minnesota: Hydrological Processes, v. 17, no. 4; p. 823-838. (on-line abstract)

• Schuster, P.F., Krabbenhoft, D.P., Naftz, D.L., Celcil, L.D., Olson, M.L., DeWild, J.F., Susong, D.D., Green, J.R., and Abbott, M.L., 2002, Atmospheric mercury deposition during the last 270 years: a glacial ice core record of natural and anthropogenic sources, Environmental Science & Technology, v. 36, no. 11, p. 2303-2310. (on-line abstract) or (on-line pdf report) - published by the American Chemical Society; not subject to U.S. copyright.

• Schuster, P.F., White, D.E., Naftz, D.L., and L. Cecil, D.W., 2000, Chronological refinement of an ice core record at Upper Fremont Glacier in south central North America, Journal of Geophysical Research, v. 105, p. 4657-4666. (on-line report)

• Schuster, P.F., Reddy, M.M., and Sherwood, S.I., 1994. Effects of acid rain and sulfur dioxide on marble dissolution: Material Performance, v. 33(1), p. 76-80. (electronic file)

• Shanley, J.B., Reddy, M., Schuster, P., Marvin-DiPasquale, M., 2005, Mercury and methylmercury dynamics in upland landscapes at Sleepers River, Vermont USA. This abstract presented at the GSA Meeting, San Jose, CA, April 28-May 2, 2005. (on-line abstract)

• Shanley, J.B., Schuster, P.F., Reddy, M.M., Roth, D.A., Taylor, H.E., and Aiken, G.R., 2002, Mercury on the move during snowmelt in Vermont, EOS, Transactions, American Geophysical Union, v. 83, no. 5., p. 47-48. (on-line report)

• Tian, L., Yao, T., Schuster, P.F. White, J.W.C., Ichiyanagi, K., Pendall, E., Pu, J., and Yu, W., 2003, Oxygen-18 concentrations in recent precipitation and ice cores on the Tibetan Plateau: Journal of Geophysical Research, v. 108, no. D9, p. 4293. (on-line journal article)

• Tipping, E., Reddy, M.M. and Hurley, M.A., 1990, Modeling electrostatic and heterogeneity effects on proton dissociation from humic substances, Environmental Science and Technology, v. 24, no. 11, pp. 1700-1705. (electronic file)

Fact Sheets

• Fact Sheet 186-96: Interactions of Mercury with Dissolved Organic Carbon in The Florida Everglades
• Fact Sheet 043-03: Water Quality of the Boulder Creek Watershed, Colorado (pdf)

Computer Programs

• PhreeqcI--A Graphical User Interface For The Geochemical Computer Program PHREEQC (Computer Program)
• More computer information and available programs

Abstracts (1997-2007)

BY AUTHOR

• Aiken, G., Reddy, M., Ravichandran, M., Ryan, J.N., 2001, Inateractions between dissolved organic matter and mercury, in Biogeochemistry of Environmentally Important Elements, eds., Cai, Y., and Braids, O., Symposia Papers Presented before the Division of Environmental, Chemistry American Chemical Society, San Diego, CA, April 1-5, 2001. (electronic file)

• Baedecker, M., Kirshtein, J.D., Wickland, K.P., Metge, D.W., Schuster, P.F., Voytek, M.A., 2006, Microbial diversity in soil cores from the Yukon River Basin, Alaska: EOS Transactions, American Geophysical Union, v. 87, no. 52, AGU Fall Meeting Supplement. (on-line abstract)

• Reddy, M., 2005, Calcite crystal growth inhibition by aquatic humic substances - can humic substances serve as carbonate scale inhibitors?. This abstract presented in the Book of Abstracts - Humic Science & Technology VIII Conference, Boston, MA, March 16-18, 2005.

• Schuster, P., Aiken, G., Reddy, M., Krabbenhoft, D., Striegl, R., DeWild, J.F., Olson, M.L., Olund, S.D., 2006, Interactions of mercury and organic matter in the Yukon River Basin, abstract presented at the Mercury Conference, Madison, WI, August 6-11, 2006. (on-line abstract)

• Striegl, R., Dornblaser, M., Schuster, P., Reddy, M., Brabets, T., Aiken, G., 2004, Export of water and carbon from the Yukon River Basin to the Bering Sea. This abstract was presented at the AGU Spring Meeting, Montreal, Canada, May 17-21, 2005. (on-line abstract)

BY TITLE

• Speciation and Fractionation Modeling Studies - Dissolved Organic Carbon (DOC)-Mercury Interaction (Abstract)
• Enhanced Dissolution of Cinnabar (Mercuric Sulfide) By Dissolved Organic Matter from The Florida Everglades (Abstract)
• Limestone Characterization to Model Damage from Acidic Precipitation: Effect of Pore Structure on Mass Transfer (Abstract)
• Modeling Damage to Limestone Exposed to Atmospheric Pollutants (Abstract)
• Inhibition of Calcite Growth by Natural Organic Material From The Florida Everglades At pH = 8.5 And 25^OC (Abstract)
• Diel Sulfide and Dissolved Oxygen Concentration Gradients at Two Sites in the Everglades (Abstract)
• Dissolved Organic Carbon in the Everglades, Florida (Abstract)
• Characterization of Organic Matter Incorporated in Calcium Carbonate Precipitated in Pyramid lake, Nevada (Abstract-2007)

Posters (1997-2007)

• Speciation and Fractionation Modeling Studies -- Dissolved Organic Carbon (DOC)-Mercury Interaction (Poster-1997)
• Enhanced Dissolution of Cinnabar (Mercuric Sulfide) by Dissolved Organic Matter Isolated from the Everglades, FL (Poster-1998)
• Rock Disaggregation and Chemical Weathering in the Regolith in a Cold, Alpine Environment (Poster)
• Diel Sulfide and Dissolved Oxygen Concentration Gradients at Two Sites in the Everglades (Poster-1998)
• Inhibition of Calcite Growth by Natural Organic Acids from the Everglades at pH 8.5 and 25^oC (Poster-1998)
• Dissolved Organic Carbon Interactions with Mercury in the Everglades (Poster)
• Aragonite Whiting Events, Pyramid Lake Nevada: What is the Mechanism? (Poster)
• Inhibition of Precipitation of Metacinnabar (HgS) by Dissolved Organic Matter Isolated from the Everglades, Fl (Poster)
• Chronological Refinement of an Ice Core Record at Upper Fremont Glacier in South--Central North America (Poster)
• Redden, G., Tartakovsky, A., Scheibe, T., Fjuita, Y., Smith, R., Reddy, M., Kelly, S., 2006, Coupling between flow and precipitation in heterogeneous subsurface environments and effects on contaminant fate and transport, abstract presented in the Book of Abstracts - ERSP Meeting, April 3-5, 2006, Warrentown, VA. (Poster)

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