Radionuclide migration into natural fracture surfaces of granitic rock

Conference · Sat Jan 01 04:00:00 EST 1983 · Mater. Res. Soc. Symp. Proc.; (United States)

OSTI ID:5875431

Torstenfelt, B; Eliasson, T; Allard, B; Andersson, K; Hoeglund, S; Ittner, T; Olofsson, U

The update of cesium on natural fracture surfaces taken from granitic bedrock has been studied as well as the depth penetration into the underlying rock. The fracture minerals usually exhibit good sorptive properties with respect to cesium (with the exception of calcite). The surface coatings do not act as physical diffusion barriers and do not prevent a migration into the underlying rock. A considerable depth penetration into the rock (several mm over a period of three months) was observed. The dominating pathways into the rock matrix were the high-capacity minerals in grains or in microfissures. The calculated diffusivity in the rock matrix was of the order of 10/sup -13/ m/sup 2//s.

• Research Organization: Chalmers Univ. of Technology, Goeteborg, Sweden
• OSTI ID: 5875431
• Report Number(s): CONF-821107-Pt.1
• Conference Information: Journal Name: Mater. Res. Soc. Symp. Proc.; (United States) Journal Volume: 15
• Country of Publication: United States
• Language: English

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54 ENVIRONMENTAL SCIENCES
ADSORPTION
ALKALI METALS
CESIUM
DATA
DIFFUSION
DISTRIBUTION FUNCTIONS
ELEMENTS
ENVIRONMENTAL TRANSPORT
EXPERIMENTAL DATA
FAILURES
FRACTURES
FUNCTIONS
GEOLOGIC DEPOSITS
GRANITES
GROUND WATER
HIGH-LEVEL RADIOACTIVE WASTES
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
INFORMATION
MANAGEMENT
MASS TRANSFER
MATERIALS
METALS
NUMERICAL DATA
OXYGEN COMPOUNDS
PLUTONIC ROCKS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
ROCKS
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER