Nuclear-waste isolation in the unsaturated zone of arid regions

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The vadose zone in arid regions is considered as a possible environment for geologic isolation of nuclear waste. There are several topographic and lithologic combinations in the vadose zone of arid regions that may lend themselves to waste isolation considerations. In some cases, topographic highs such as mesas and interbasin ranges - comprised of several rock types, may contain essentially dry or partially saturated conditions favorable for isolation. The adjacent basins, especially in the far western and southwestern US, may have no surface or subsurface hydrologic connections with systems ultimately leading to the ocean. Some rock types may have the ... continued below

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17 p.

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Wollenberg, H.A.; Wang, J.S.Y. & Korbin, G. May 1, 1982.

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Description

The vadose zone in arid regions is considered as a possible environment for geologic isolation of nuclear waste. There are several topographic and lithologic combinations in the vadose zone of arid regions that may lend themselves to waste isolation considerations. In some cases, topographic highs such as mesas and interbasin ranges - comprised of several rock types, may contain essentially dry or partially saturated conditions favorable for isolation. The adjacent basins, especially in the far western and southwestern US, may have no surface or subsurface hydrologic connections with systems ultimately leading to the ocean. Some rock types may have the favorable characteristics of very low permeability and contain appropriate minerals for the strong chemical retardation of radionuclides. Environments exhibiting these hydrologic and geochemical attributes are the areas underlain by tuffaceous rocks, relatively common in the Basin and Range geomorphic province. Adjacent valley areas, where tuffaceous debris makes up a significant component of valley fill alluvium, may also contain thick zones of unsaturated material, and as such also lend themselves to strong consideration as respository environments. This paper summarizes the aspects of nuclear waste isolation in unsaturated regimes in alluvial-filled valleys and tuffaceous rocks of the Basin and Range province.

Physical Description

17 p.

Notes

NTIS MF A01; OSTI as DE83006956

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  • American Geophysical Union spring meeting, Philadelphia, PA (United States), 31 May - 4 Jun 1982

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  • Other: DE83006956
  • Report No.: LBL--14086
  • Report No.: CONF-8205157--1
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 60285
  • Archival Resource Key: ark:/67531/metadc690998

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • May 1, 1982

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 5, 2016, 12:34 p.m.

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Wollenberg, H.A.; Wang, J.S.Y. & Korbin, G. Nuclear-waste isolation in the unsaturated zone of arid regions, article, May 1, 1982; California. (digital.library.unt.edu/ark:/67531/metadc690998/: accessed April 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.