Research Scientist

Education

• BS 1994 - Marine Science, University of South Carolina
• PhD 2002 - Oceanography, University of Hawaii

Research Interests

• Long-term biogeochemical modeling
• Mineral kinetics
• Interactive educational materials
• Curriculum/Course development K-12

Selected Publications

Arvidson, R.S., Mackenzie, F. T. and Guidry, M. (2006). MAGic: A Phanerozoic model for the geochemical cycling of major rock-forming components: American Journal of Science, v. 306.

Guidry, M.W. and Mackenzie F.T. (2003). Experimental Study of Igneous and Sedimentary Apatite Dissolution: Control of pH, Distance from Equilibrium, and Temperature on Dissolution Rates. Geochimica et Cosmochimica Acta. v. 67 (16), p. 2949-2963.

Guidry, M.W. and Mackenzie F.T. (2000) Apatite weathering and the Phanerozoic Phosphorus Cycle. Geology. v. 28. p. 631-634.

Guidry, M.W., Mackenzie, F.T., and Arvidson R.S. (2000) Role of Tectonics in Phosphorus Distribution and Cycling. In: C.R. Glenn, L. Prevot-Lucas and J. Lucas (Eds.), Marine Authigenesis: From Global to Microbial, S.E.P.M. (Society of Sedimentary Geology) Special Publication No. 64, 1-5.

Arvidson, R.S., Mackenzie, F.T., and Guidry M.W. (2000) Ocean/Atmosphere History and Carbonate Precipitation Rates: A Solution to the "Dolomite Problem"? In: C.R. Glenn, L. Prevot-Lucas and J. Lucas (Eds.), Marine Authigenesis: From Global to Microbial, S.E.P.M. (Society of Sedimentary Geology) Special Publication No. 65, 35-51.

Pending publications

Guidry, M.W., Mackenzie, F.T. and Arvidson, R.S. (in press). Carbonate-silicate biogeochemical cycle: Relevance to seawater, temperature, atmosphere, and carbonate precipitate composition during the Phanerozoic. In Evolution of Aquatic Photoautotrophs (eds. Falkowski, P. and Knoll, A.). Academic Press, San Diego.

Guidry, M.W. and Mackenzie, F.T. (in press) Climate Change, Water Resources, and Sustainability in the Pacific Basin: Emphasis on Oahu, Hawiai and Majuro Atoll, Republic of the Marshall Islands. University of Hawaii Sea Grant. 100pp.

Guidry, M.W. and Mackenzie, F.T. (in review) Energy Sustainability and Hawaii. University of Hawaii Sea Grant.

Research Funding

• NOAA/Sea Grant (2005-2007) - "Development of Sustainability Case Studies." (with F.T. Mackenzie, P.I.) ($99,772)
• National Science Foundation (2004-2006) - "Phanerozoic Seafloor Spreading and Compositional History of the Atmosphere, Ocean, and Sediments: A Dynamic Approach." (with F.T. Mackenzie and R. Arvidson, P.I.) ($168,840)
• Geological Association of America (2001) "Apatite Dissolution Rates: Effect of solution pH and composition." ($1760)
• Sigma Xi (2001) "Coupled Long-Term Phosphorus and Carbon Biogeochemical Cycles: Experimental and Modeling Approach." ($700)
• Petroleum Research Fund - American Chemical Society ACS-PRF #35576-AC2 (2000-2002) "Apatite Dissolution Kinetics: Role of Temperature and Solution Chemistry on the Long-Term Availability of Phosphorus for Primary Production." (with F.T. Mackenzie, P.I.) ($60,000)

• Future Climate Change: Impact on Pacific Islands and Resources