Geomorphic control of radionuclide diffusion in desert soils
Geophysical Research Letters
By: J.D. Pelletier, C.D. Harrington, J. W. Whitney, M. Cline, S.B. DeLong, G. Keating, and T.K. Ebert
Links
- More information: Publisher Index Page (via DOI)
- Open Access Version: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
Diffusion is a standard model for the vertical migration of radionuclides in soil profiles. Here we show that diffusivity values inferred from fallout 137CS profiles in soils on the Fortymile Wash alluvial fan, Nye County, Nevada, have a strong inverse correlation with the age of the geomorphic surface. This result suggests that radionuclide-bound particles are predominantly transported by infiltration rather than by bulk-mixing processes such as wetting/ drying, freeze/thaw, and bioturbation. Our results provide a preliminary basis for using soil-geomorphic mapping, point-based calibration data, and the diffusion model to predict radionuclide trans desert soils within a pedotransfer-function approach. Copyright 2005 by the American Geophysical Union.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Geomorphic control of radionuclide diffusion in desert soils |
| Series title | Geophysical Research Letters |
| DOI | 10.1029/2005GL024347 |
| Volume | 32 |
| Issue | 23 |
| Year Published | 2005 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Geophysical Research Letters |
| First page | 1 |
| Last page | 4 |
| Google Analytic Metrics | Metrics page |