Coupled hydro-geochemical processes and their significance for Yucca Mountain Site Characterization

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Geochemical processes can results in changes in hydrological properties and processes via modification of pore and fracture volumes. Coupling of these processes must be taken into account when modeling repository evolution. Preliminary calculations have been carried out to determine the distribution of equilibrium vs kinetically controlled recrystallization domains in the repository block, and what the magnitude of resulting changes in porosity may be. The results suggest that equilibrium may be achieved for most of the hydrological regimes that may develop, except within fractures a few tens of meters from emplacement drifts. Preliminary models suggest total change in porosity may be ... continued below

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7 p.

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Glassley, W. September 1, 1993.

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Description

Geochemical processes can results in changes in hydrological properties and processes via modification of pore and fracture volumes. Coupling of these processes must be taken into account when modeling repository evolution. Preliminary calculations have been carried out to determine the distribution of equilibrium vs kinetically controlled recrystallization domains in the repository block, and what the magnitude of resulting changes in porosity may be. The results suggest that equilibrium may be achieved for most of the hydrological regimes that may develop, except within fractures a few tens of meters from emplacement drifts. Preliminary models suggest total change in porosity may be ca. twenty percent in equilibrium-dominated regimes.

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7 p.

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INIS; OSTI as DE94002011

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  • Focus 93: site characterization and model validation, Las Vegas, NV (United States), 26-29 Sep 1993

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  • Other: DE94002011
  • Report No.: UCRL-JC--114783
  • Report No.: CONF-9309228--4
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 140078
  • Archival Resource Key: ark:/67531/metadc620583

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  • September 1, 1993

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 18, 2016, 12:13 p.m.

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Glassley, W. Coupled hydro-geochemical processes and their significance for Yucca Mountain Site Characterization, article, September 1, 1993; California. (digital.library.unt.edu/ark:/67531/metadc620583/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.