The use of chlorine isotope measurements to trace water movements at Yucca Mountain

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The rates of water movements in the tuffs at Yucca Mountain are important for assessing the performance of a potential high-level nuclear waste repository. Measurements of cosmogenic 3.0 {times} 10{sup 5} yr {sup 36}Cl in tuff from the unsaturated zone and in water from the saturated zone can provide information about water movements over times of 10{sup 15} to 10{sup 6} years. The data derived from the analysis of cuttings from a dry-drilled hole at Yucca Mountain indicate the presence of a {sup 36}Cl background that must be taken into account for proper interpretation of the {sup 36}Cl interpretation of ... continued below

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7 p.

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Norris, A. E. August 1989.

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Description

The rates of water movements in the tuffs at Yucca Mountain are important for assessing the performance of a potential high-level nuclear waste repository. Measurements of cosmogenic 3.0 {times} 10{sup 5} yr {sup 36}Cl in tuff from the unsaturated zone and in water from the saturated zone can provide information about water movements over times of 10{sup 15} to 10{sup 6} years. The data derived from the analysis of cuttings from a dry-drilled hole at Yucca Mountain indicate the presence of a {sup 36}Cl background that must be taken into account for proper interpretation of the {sup 36}Cl interpretation of the {sup 36}Cl results. Similarly, the {sup 36}Cl measured in water from the saturated zone requires additional work for correct interpretation. Fallout of {sup 36}Cl from nuclear weapons tests between 1952 and 1962 provided a tracer for an infiltration study. Measurements of the {sup 36}Cl bomb pulse in tuffs from the unsaturated zone show potential for tracing recent water flow in faults and fractures. 5 refs.

Physical Description

7 p.

Notes

NTIS, PC A02/MF A01 - OSTI; OSTI as DE89015278

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  • Nuclear waste isolation in the unsaturated zone: FOCUS `89, Las Vegas, NV (United States), 18-21 Sep 1989

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  • Other: DE89015278
  • Report No.: LA-UR--89-2573
  • Report No.: CONF-890928--2
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 137513
  • Archival Resource Key: ark:/67531/metadc628128

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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.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • August 1989

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  • June 16, 2015, 7:43 a.m.

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  • March 10, 2016, 1:48 p.m.

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Norris, A. E. The use of chlorine isotope measurements to trace water movements at Yucca Mountain, article, August 1989; New Mexico. (digital.library.unt.edu/ark:/67531/metadc628128/: accessed November 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.