• Field and laboratory studies of spatial and seasonal variations in sediment and pore water geochemistry in redox stratified saltmarsh sediments
  • Effects of geochemical conditions on seasonal oscillations in microbial community structure and trace metal mobility
  • Stochastic modeling of burrow networks and reaction-transport modeling using inverse methods to quantify biologically-enhanced solute transport in modern and ancient sedimentary environments
Mineral Surface Geochemistry  
  • Experimental studies of solute adsorption on mixed model sediments
  • Modeling the influence of crystal chemistry on adsorption and dissolution at oxide and silicate surfaces using surface complexation theory
  • Diffuse reflectance FTIR studies of hydroxyl groups on silicate surfaces

Thermodynamic Properties of Aqueous Metal-Organic Complexes
  •  Prediction of thermodynamic properties of aqueous metal-organic complexes at elevated temperatures and pressures
  • Studies of the effect of metal-organic complexation on metal transport in sedimentary basin brine and landfill environments 

Awards and Grants:
 "Quantitative Chemical Mass Transfer in Coastal Sediments During Early Diagenesis: Effects of Biological Transport, Mineralogy and Fabric", Office of Naval Research, 1999-2002, $160,000

"Microbially-Mediated Reductive Dissolution of Manganese and Iron Oxides in Redox-Stratified Sedimentary Environments: A Mechanism for Seasonal Mobilization of Trace Metal Contaminants? WMU Environmental Institute Research Fund (Private Foundation), 2001-2003 $80,900

"Effect of Vegetation on Redox-Stratification of Marsh Sediments" Faculty Research and Creative Activities Support Fund,  2002-2003, $10,000

"Trace Metal Speciation Surrounding Macrofaunal Burrows: implications for enhanced solute transport and organic matter degradation in modern and ancient sedimentary systems", 2004-2006, American Chemical Society Petroleum Research Fund, $35,000

"CAREER: Generation of sediment heterogeneity by macrophytes and macrofauna and consequences for redox chemistry and trace metal speciation, National Science Foundation CAREER Program, $471, 285, pending

"Aquistion of an Inductively Coupled Plasma Optical Emission Spectrometer for Interdisciplinary Geochemical and Microbiological Research and Education", National Science Foundation EAR Instrumentation and Facilities Program, $89,031 pending.
Peer-Reviewed Publications:  
 
Koretsky C.M., Van Cappellen P., DiChristina T.J., Kostka J., Lowe K.L., Moore C.M., Roychoudhury A.N. and Viollier E. (2004) Salt marsh pore water geochemistry does not correlate with microbial community structure. Estuarine Coastal and Shelf Science, submitted.

Koretsky C.M., Moore C., Lowe K., Meile C., DiChristina T.J. and Van Cappellen P. (2003) Seasonal oscillations of microbial iron and sulfate reduction in saltmarsh sediments (Sapelo Island, GA, USA), Biogeochemistry, 64, 179-203.

Koretsky C.M., Meile C. and Van Cappellen P. (2002) Quantifying bioirrigation using ecological parameters: a stochastic approach. Geochemical Transactions 3, 17-30.

Meile C., Koretsky C.M. and Van Cappellen P. (2001) Quantifying bioirrigation in aquatic sediments: an inverse modeling approach. Limnology and Oceanography, 46, 164-177..

Koretsky C.M. (2000)  The significance of surface complexation reactions in hydrologic systems: a geochemist's perspective. Journal of Hydrology, 230, 127-171. Invited Review.

Prapaipong P., Shock E.L. and Koretsky C.M. (1999)  Metal-organic complexes in geochemical processes: estimation of standard partial molal thermodynamic properties of aqueous complexes between metal cations and dicarboxylate ligands at high temperatures. Geochimica et Cocmochimica Acta 63, 2547-2577.

Koretsky C.M., Sverjensky D.A. and Sahai N. (1998)  Surface site types on oxide and silicate minerals based on crystal chemistry: Implications for site-densities, multi-site adsorption, surface infrared spectroscopy, and dissolution kinetics. American Journal of Science298, 349-438.

Koretsky C.M., Sverjensky D.A., Salisbury J.W. and D'Aria D.M. (1997) Detection of surface hydroxyl species on quartz, g-alumina, and feldspars using diffuse reflectance infrared spectroscopy. Geochimica et Cosmochimica Acta 61(11), 2193-2210.

Shock E.L. and Koretsky C.M. (1995) Metal-organic complexes in geochemical processes: Estimation of standard partial molal thermodynamic properties of aqueous complexes between metal cations and monovalent organic acid ligands at high pressures and temperatures. Geochimica et Cosmochimica Acta59, 1497-1532.

Shock E.L. and Koretsky C.M. (1993) Metal-organic complexes in geochemical processes: Calculation of standard partial molal thermodynamic properties of aqueous acetate complexes at high pressures and temperatures. Geochimica et Cosmochimica Acta 57, 4899-4922.

WMU Teaching:

   Mineralogy (GEOS 335)
     Environmnetal Systems and Cycles (ENVS 215)
    Introduction to Geochemistry (GEOS 555)
    Mineral-Water Interface Geochemistry (GEOS 610)

Abstracts:

Koretsky C. (2004) Incorporating complementary ecological and chemical information into bioirrigation models. Nereis Park Conference. Bioturbation: the ever changing seafloor. November 7-9, Carry-Le-Rouet, Bouches-du-Rhone, France. Invited speaker.

Koretsky C. and Miller D. (2004) A field and modeling study of macrophyte and macrofaunal effects on saltmarsh sediment pore water and solid phase geochemistry (Sapelo Island, GA, USA). ASLO 2004 Summer Meeting, June 13-18, Savannah, GA.

Koretsky C., Ndenga N., Miller D. and Haas J. (2003) Seasonal variations in trace metal association with iron and manganese (hyd)oxides in the Kalamzoo River Watershed (Kalamazoo, MI, USA). International Workshop on the Mobility and Bioavailability of Meals in Soils and Groundwater, March 2-7, 2003, Ascona, Switzerland.

Koretsky C., Ndenga N., Miller D. and Haas J. (2003) Trace metal association with iron and manganese (hydr)oxides in the Kalamazoo River Watershed (Kalamazoo, MI, USA), ASLO Aquatic Sciences Meeting, February 8-14, Salt Lake City, UT.

Atekwana E., Atekwana E., Werkema D., Duris J., Rossbach S., Sauck W., Koretsky C., Cassidy D., Means J. and Sherrod L. (2003) Investigating the effects of microbial communities on electrical properties of soils: preliminary results from a pilot scale column experiment. European Geophysical Society, Geophysical Research Abstracts 5, 13832.

Koretsky C., Meile C., and Van Cappellen P. (2002) The influence of macrophytes and macrofauna on saltmarsh sediment redox geochemistry (Sapelo Island, GA, USA). Geological Society of America Annual Meeting, October 27-30, 2002, Denver, CO.

Ndenga N., Koretsky C., Milller D. and Haas J. (2002) Seasonal variations in trace metal association with iron and manganese (hydr)oxides in the Kalamazoo River Watershed (Kalamazoo, MI, USA), Geolocial Society of America Annual Meeting, October 27-30, 2002, Denver, CO.

Koretsky C., Moore C., Meile C., DiChristina T. and Van Cappellen P. (2002) Seasonal oscillations in microbial iron and sulfate reduction in saltmarsh sediments. Twelth Annual V.M. Goldschmidt Conference, Davos, Switzerland, August 18-23, 2002.

Koretsky C., Meile C. and Van Cappellen P. (2002) Effects of macrophytes and macrofauna on saltmarsh pore water redox chemistry (Sapelo Island, GA) ASLO Ocean Sciences Meeting, February 5-11, Honolulu, Hawaii.

Meile C., Van Cappellen P., Koretsky C. and Regnier P. (2001) Modeling small scale spatial heterogeneity in early diagenesis. American Chemical Society Meeting, April, San Diego, CA.

Meile C., Koretsky C. and Van Cappellen P. (2001) Quantifying biologically induced solute transport in aquatic sediments: an inverse approach. American Chemical Society Meeeting, April, San Diego, CA.

Meile C., Koretsky C. and Van Cappellen P. (2000) Modeling bioirrigation intensity in aquatic sediments. American Geophysical Union, San Francisco, CA, December.

Koretsky C., Moore C, DiChristina T. and Van Cappellen P. (2000) Seasonal oscillations in ferric iron- and sulfate-reducing bacteria in saltmarsh sediments (Sapelo Island, GA). Geochemistry of Crustal Fluids URESCO Conference, Granada, Spain, December 4-9, 2000.

Koretsky C., DiChristina T., Moore C. and Van Cappellen P. (2000) Seasonal oscillations in microbial and abiotic iron(III) reductio in saltmarsh sediments. 23rd Annual Midwest Environmental Chemistry Workshop, Kalamazoo, MI, October 7-8, 2000.

Koretsky C.M., Meile C., Curry C., Haas J., Hunter K. and Van Cappellen P. (2000) The effect of colonization by Spartina alterniflora on pore water redox geochemistry at a saltmarsh on Sapelo Island, GA. Goldschmidt Conference, Oxford, England, September 3-8, 2000, Journal of Conference Abstracts 5, 599.

DiChristina T.J., Koretsky C.M., Kostka J. and Van Cappellen P. (2000) Seasonal oscillations in iron and sulfate reducing microbial populations in saltmarsh sediments at Sapelo Island, GA. American Society of Limnology and Oceanography Conference, Copenhagen, Denmark, June 5-9, 2000.

Koretsky C.M., Moore C., Van Cappellen P. and DiChristina T.J. (2000) Competitive interactions between Fe(III) and sulfate reducing bacteria in saltmarsh sediments. American Society of Limnology and Oceanography Conference, Copenhagen, Denmark, June 5-9, 2000.

Meile C., Koretsky C.M., and Van Cappellen P. (2000) American Society of Limnology and Oceanography Conference, Copenhagen, Denmark, June 5-9, 2000.

Koretsky C.M., Van Cappellen P., Lowe K., DiChristina T., and Kostka J. (1999) Spatial and Temporal Trends in Saltmarsh Biogeochemistry. Fourteenth International Symposium on Environmental Biogeochemistry, Huntsville, Ontario, September 25-29, 1999.

Koretsky C.M. and Van Cappellen P. (1999) Quantitative Modeling of Bioirrigation: A Stochastic Approach. Chemical Oceanography Gordon Conference, Kimball Union Academy, August 8-13, 1999.

Koretsky C.M. and Van Cappellen P. (1999) Spatial and temporal trends in saltmarsh sediment geochemistry. 6th Symposium on Biogeochemistry of Wetlands. July 11-14, 1999. Ft. Lauderdale, Florida.

Koretsky C.M., Van Cappellen P. and Meile C. (1999) A stochastic approach to bioirrigation modeling in sedimentary environments. 5th International Symposium on the Geochemistry of the Earth’s Surface. August 16-20, 1999, Reykjavik, Iceland.

Kostka J., Roychoudhury A., Koretsky C.M. and Van Cappellen P. (1999) Microbial respiration rates in saltmarsh sediments. 6th Symposium on Biogeochemistry of Wetlands. July 11-14, 1999. Ft. Lauderdale, Florida.

Meile C., Koretsky C. and Van Cappellen P. (1999) Spatial and temporal variations in bioirrigation: An inverse approach. 5th International Symposium on the Geochemistry of the Earth’s Surface. August 16-20, 1999, Reykjavik, Iceland.

Koretsky C.M., Van Cappellen P. and Kostka J. (1998) Seasonal dependence of porewater irrigation in a saltmarsh at Sapelo Island, GA: Implications for sediment biogeochemistry. Geological Society of America, Abstracts with Programs, 30, 374.

Walker S.E., Van Cappellen P., Roychoudhury A. and Koretsky C. (1998) Preservation of experimentally-deployed molluscan carbonate below the sediment-water interface. Geological Society of America, Abstracts with Programs.

Goldstein S.T., Van Cappellen P., Rochoudhury A. and Koretsky C. (1998) Preservation of salt-marsh foraminifera in experimental arrays deployed below the sediment-water interface, Sapelo Island, Georgia (USA), Geological Society of America, Abstracts with Programs.

Koretsky C.M. and Sverjensky D.A. (1997) Structure of surface sites predicted from crystal chemistry: Implications for interpretation of infrared and X-ray absorption fine-structure spectroscopy data. In: Seventh Annual V.M. Goldschmidt Conference, p.116 , LPI Contribution No. 921, Lunar and Planetary Institute, Houston.

Koretsky C.M., Sahai N. and Sverjensky D.A. (1996) Calculation of surface site densities on a variety of oxide and silicate minerals using crystal structures and morphologies. Geol. Soc. Amer. Abstracts with Programs, 28(7) A-146.

Koretsky C.M. and Sverjensky D.A. (1995) A comparison of andalusite,kyanite, sillimanite, g-alumina, quartz and feldspar surface hydroxyl groups using reflectance infrared spectroscopy. Geol. Soc. Amer. Abstracts with Programs, A-182.

Koretsky C.M. and Sverjensky D.A. (1995) Detection of surface hydroxyl species on quartz and feldspars using reflectance infrared spectroscopy. Amer. Geophys. Union Spring Meeting.

Sverjensky D.A., Criscenti L.J., Koretsky C.M. and Sahai N. (1995) A constant capacitance model for dissolution rates for oxides and silicates at 25°C and 1 bar. Amer. Geophys. Union Spring Meeting, S101.

Koretsky C.M. and Shock E.L. (1993) Assessing the role of aqueous metal complexes of monovalent organic ligands in geochemical processes. Geol. Soc. Amer. Abstracts with Programs, A-437.

Synergistic Activities:

Co-Editor of Geochcmical News (Quarterly Newsletter of the Geochemical Society)Goldschmidt 2005 International Steering Committee Member
Water-Rock Interactions 2004 Financial Assistance Committee Member
ASLO 2003 Aquatic Sciences Meeting Steering Committee and Abstract Sorting Committee
WMU Academic Integrity Committee (2001-present)
WMU Radiation Safety Committee (2001-present)
FRACASF Review Committee (2003-present)
FRACASF Revision Subcommittee (2004)
Geosciences MS Graduate Advisor (2004-present)
Geosciences Assessment Committee Chair (2004)
Geosciences Geochemistry Major Advisor (2003-2004)
Geosciences External Chair Search Committee (2003-2004)
Geosciences Sedimentology Faculty Search Committee (2001-2002)
Environmental Studies Curriculum Revision Committee (2002-2004)
Geosciences Department Seminar Coordinator (2003-2004)
Visiting Scholars and Artists Program Coordinator (2003)
Bronco Days Faculty Participant (2003)
Medallion Scholarship Observer (2002)