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Cosmogenic Nuclide Laboratory and Geomorphology Research Group

10-Be Production Rates, Laurentide Moraines



In the mid-1990s, when we did this study, production rates of 10-Be and 26-Al were not well constrained. To provide another estimate for nuclide production rates, we collected samples of both bedrock and erratic boulders from near the Laurentide terminus in New Jersey. Assuming that multiple lines of dating evidence are correct, we used the isotopic data to calculate production rates significantly less than those favored at the time.
Project Support
NSF Sediment transport in large drainages EAR-9396261
Proposal Project Summary (download pdf)
People Working on this Project
Paul Bierman
Marc Caffee
Doug Clark
Pat Larsen
Jill Turner
Theses Related to this Project

Patrick Larsen, MS Thesis (1995): Production rate estimates of 10Be and 26Al from erratics and bedrock near the Wisconsinan glacial terminus New Jersey (download pdf)
Publications Related to this Project

Larsen, P.L., Bierman, P.R., and Caffee, M., 1995, Cosmogenic 26Al chronology of the late Wisconsinan glacial maximum in north-central New Jersey: Geological Society of America, Northeastern Section, 30th annual meeting Abstracts with Programs - Geological Society of America, v. 27, p. 63. (download pdf)

Larsen, P.L., Bierman, P.R., and Caffee, M., 1995, Preliminary in-situ production rates of cosmogenic 10Be and 26Al over the past 21.5 ky from the terminal moraine of the Laurentide ice sheet, north-central New Jersey: Geological Society of America, 1995 annual meeting Abstracts with Programs - Geological Society of America, v. 27, p. 59. (download pdf)

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. (download pdf)

Clark, D., Bierman, P.R., and Larsen, P., 1995, Improving in situ cosmogenic chronometers: Quaternary Research, v. 44, p. 366-376. (download pdf)
Abstracts Related to this Project

Bierman, P.R., Davis, P.T., Marsella, K., Colgan, P.M., Mickelson, D.M., Larsen, P., and Caffee, M., 1998, What do glaciers take away? What do they leave behind?: Geological Society of America, 1998 annual meeting Abstracts with Programs - Geological Society of America, v. 30, p. 299. (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)

Baldwin, L., Bierman, P., Schwartz, A., Church, A., and Larsen, P., 1995, The effects of colonial disturbance and subsequent reforestation on the Vermont landscape: Geological Society of America Abstracts with Programs, v. 27, p. 28. (download pdf)

Last modified January 28 2009 09:47 AM

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