Erik Clapp

Erik Clapp spent many years of his life at UVM pursuing geologic and environmental research. His MS dealt with water quality and his doctoral research used ¹⁰Be analysis of sediment to examine the source and rate of sediment production in three different arid region drainage basins. Erik's work included isotopic analysis of sediment depth profiles to calculate deposition rates.

PhD dissertation (University of Vermont, 2002)

Long-term, basin-wide erosion rates determined from in-situ produced cosmogenic isotopes in sediments: A basis for assessing rates of human and climate induced landscape change download pdf of PhD proposal
download pdf of PhD dissertation

MS Thesis (University of Vermont, 1995)

The Storage and transport of Phosphorus and Fecal Coliform Bacteria in the Channel Sediments of Englesby Brook download ppt of MS thesis defense slides
download pdf of MS thesis

Undergraduate Degree

University of Vermont, B.S. Geology, 1988

Email Address

emc@smemaine.com

Current Position and Contact Information (3/2008)

Geologist & Project Manager
Sevee & Maher Engineers, Inc.
4 Blanchard Rd.
P.O.Box 85A
Cumberland Center, Maine 04021

Refereed Papers

Gellis, A. C., Pavich, M. J., Bierman, P. R., Clapp, E. M., Ellevein, A. and Aby, S. (2004) Modern sediment yield compared to geologic rates of sediment production in a semi-arid basin, New Mexico: assessing the human impact. Earth Surface Processes and Landforms. v. 29(11), p. 1359-1372. doi:10.1002/esp.1098

Clapp, E., Bierman, P. R. and Caffee, M. (2002) Using ¹⁰Be and ²⁶Al to determine sediment generation rates and identify sediment source areas in an arid region drainage basin. Geomorphology. v. 45(1-2), p. 89-104. doi:10.1016/S0169-555X(01)00191-X

Nichols, K. K., Bierman, P. R., Hooke, R. L., Clapp, E. and Caffee, M. (2002) Quantifying sediment transport on desert piedmonts using ¹⁰Be and ²⁶Al. Geomorphology. v. 45(1-2), p. 105-125. doi:10.1016/S0169-555X(01)00192-1

Clapp, E. M., Bierman, P. R., Nichols, K. K., Pavich, M. and Caffee, M. (2001) Rates of sediment supply to arroyos from upland erosion determined using in situ produced cosmogenic ¹⁰Be and ²⁶Al: Quaternary Research. v. 55(2), p. 235-245. doi:10.1006/qres.2000.2211

Clapp, E. M., Bierman, P. R., Schick, A. P., Lekach, J., Enzel, Y. and Caffee, M. (2000) Sediment yield exceeds sediment production in arid region drainage basins. Geology. v. 28(11), p. 995-998. doi:10.1130/0091-7613(2000)28<995:SYESPI>2.0.CO;2

Bierman, P. R. and Clapp, E. M. (1996) Estimating geologic age from cosmogenic nuclides; an update. Science. v. 271(5255), p. 1606. doi:10.1126/science.271.5255.1606a

Clapp, E., Bierman, P. R., Church, A. B., Larsen, P. L., Schuck, R. A. and Hanzas, J. P. (1996) Teaching geohydrology through analysis of groundwater resources and glacial geology, Northwestern Vermont. Journal of Geoscience Education. v. 44, p. 45-51. doi:10.5408/1089-9995-44.1.45

Abstracts

Bierman, P. R., Nichols, K. K., Clapp, E., Matmon, A., Caffee, M. and Finkel, R. (2002) Tracking landscape scale sediment generation and transport using ¹⁰Be and ²⁶Al. Abstracts of Goldschmidt Conference, Geochimica et Cosmochimica Acta, v. 66, p. A-77. (download pdf)

Gellis, A., Pavich, M., Bierman, P. R., Ellevein, A., Clapp, E. and Caffee, M. (2001) Modern compared to geologic rates of erosion in Arroyo Chavez, Rio Puerco Basin, New Mexico. GSA Abstracts with Programs, Annual meeting, Boston, MA. v. 32, p. A-286, Abstract 121-0. (download pdf)

Bierman, P. R., Nichols, K. K., Clapp, E. M. and Caffee, M. W. (2000) Army impacts on Desert Soils -- Comparing geologic rates of change to those occasioned by General George S. Patton. American Society of Agronomy and Soil Science Society of America, Annual meeting. p. 74. (download pdf)

Gellis, A. C., Pavich, M. J., Bierman, P. R., Ellwein, A., Aby, S. and Clapp, E. M. (2000) Measuring erosion rates using modern geomorphic and isotopic measurements in the Rio Puerco, New Mexico. GSA Abstracts with Programs, Annual meeting, Reno, NV. v. 31, p. A-118. (download pdf)

Bierman, P. R., Clapp, E., Caffee, M. and Schroeder, P. (1999) Understanding Earth surface processes with ¹⁰Be (and a little ²⁶Al). GSA Abstracts with Programs, Annual meeting, Denver, CO. v. 31, p. A-305. (download pdf)

Bierman, P. R., Clapp, E., Massey, C. and Caffee, M. (1999) Tracing sediment through drainage basins with cosmogenic radionuclides, ¹⁰Be and ²⁶Al. International Conference on Drainage basin Dynamics and Morphology. p. 8. (download pdf)

Clapp, E. M., Bierman, P. R. and Caffee, M. W. (1999) Sediment generation and export rates in the Nahal Yael drainage basin, determined from cosmogenic ¹⁰Be and ²⁶Al, Negev Desert, southern Israel. GSA Abstracts with Programs, Annual meeting, Denver, CO. v. 31, p. 256. (download pdf)

Clapp, E. M., Bierman, P. R. B. and Caffee, M. W. (1998) Estimating long-term erosion rates in a hyper-arid region using in situ produced cosmogenic ¹⁰Be and ²⁶Al in sediment and bedrock. GSA Abstracts with Programs, Annual meeting, Toronto, Canada. v. 30, p. 361. (download pdf)

Clapp, E. M., Bierman, P. R. and Caffee, M. (1997) Rates of erosion determined using in situ produced cosmogenic isotopes in a small arroyo basin, northwestern New Mexico. GSA Abstracts with Programs, Annual meeting, Salt Lake City, UT. v. 29, p. 371-372. (download pdf)

Bierman, P. R., Larsen, P., Clapp, E. and Clark, D. H. (1996) Refining estimates of ¹⁰Be and ²⁶Al production rates, in Gosse, J. C., Reedy, R. C., Harrington, C. D. and Poths, J. eds., Workshop on Secular variations in production rates of cosmogenic nuclides on Earth Radiocarbon 38, no. 1 (1996) University of Arizona, Department of Geosciences, Tucson, AZ. p. 149. (download pdf)

Bliss, C., Clapp, E. M. and Bierman, P. R. (1996) A compilation of geomagnetic paleo-intensity records over the past 150 ky; prerequisite for calibrating cosmogenic ages. EOS, AGU Fall meeting, San Francisco, CA. v. 77, p. 174. (download pdf)

Clapp, E. and Bierman, P. R. (1996) Cosmo calibrate, a program for calibrating cosmogenic exposure ages. Radiocarbon. v. 38, p. 151-152. (download pdf)

Clapp, E. and Bierman, P. R. (1995) First geomagnetic-based, in situ produced cosmogenic isotope calibration program. GSA Abstracts with Programs, Annual meeting, New Orleans, LA. v. 27, p. 59. (download pdf)

Other Publications

Bierman, P. R., Clapp, E. M., Nichols, K. K., Gillespie, A. R. and Caffee, M. (2001) Using cosmogenic nuclide measurements in sediments to understand background rates of erosion and sediment transport in Harmon, R. S. and Doe, W. M. eds. Landscape Erosion and Evolution Modelling, New York. Kluwer. p. 89-116. (link to publisher)

Gellis, A., Pavich, M., Bierman, P. R., Ellwein, A., Aby, S. and Clapp, E. (2001) Comparison of geomorphic and isotopic measurements for erosion in the Rio Puerco, New Mexico in Cole, J. C. ed. U. S. Geological Survey Middle Rio Grande basin study; proceedings Open-File Report (2001) U. S. Geological Survey, Reston, VA. p. 46-47. (download pdf)