department of geological sciences

Larry K. Benninger

Low-Temperature Geochemistry

Professor
Department of Geological Sciences

Education | Contact Information | Research Interests | Research Activities | Research Publications

Education

    Ph.D., Yale University, 1976.

Contact Information

    Department of Geological Sciences
    323 Mitchell Hall, CB#3315
    University of North Carolina
    Chapel Hill, NC 27599-3315

    email: lbenning@email.unc.edu

    telephone: (919) 962-0699

    fax: (919) 966-4519

Research Interests

  • The distribution and process significance of minor and trace elements in the modern sedimentary environment and in ancient sediments.
  • Natural and artificial radionuclides in sedimentary processes.
  • Geochemistry of weathering.

Research Activities

  • Carbon cycling in coastal sedimentary environments.
  • Sediment transport processes in North Carolina coastal environments: estuaries, continental shelf, continental slope.
  • Storage and mobility of radionuclides and trace elements in nearshore sedimentary environments.

Selected Research Publications

Benninger, L.K., Aller, R.C., Cochran, J.K., and Turekian, K.K., 1979, Effects of biological sediment mixing on the Pb-210 chronology and trace metal distribution in a Long Island Sound sediment core: Earth and Planetary Science Letters, v. 43, p. 241-259.
 
Benninger, L.K., and Krishnaswami, S., 1980, Sedimentary processes in the inner New York Bight: Evidence from excess Pb-210 and Pu-239, 240: Earth and Planetary Science Letters, v. 53, p. 158-174.
 
Benninger, L.K., and Dodge, R.E., 1986, Fallout plutonium and natural radionuclides in annual bands of the coral Montastrea annularis, St. Croix, U.S. Virgin Islands: Geochimica et Cosmochimica Acta, v. 50, p. 2785-2797.
 
Canuel, E.A., Martens, C.S., and Benninger, L.K., 1990, Seasonal variations in 7Be activity in the sediments of Cape Lookout Bight, North Carolina: Geochimica et Cosmochimica Acta, v. 54, p. 237-245.
 
Meece, D.E. and Benninger, L.K., 1993, The coprecipitation of Pu and other radionuclides with CaCO3; Geochimica et Cosmochimica Acta, v. 57, p. 1447-1458.
 
Benninger, L.K., and Wells, J.T., 1993, Sources of sediment to the Neuse River estuary, North Carolina: Marine Chemistry, v. 43, p. 137-156.
 
Benninger, L.K., Suayah, I.B., and Stanley, D.J., 1998, Manzala lagoon, Nile delta, Egypt: Modern sediment accumulation based on radioactive tracers: Environmental Geology, v. 34, p. 183-193.