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- W2916220110 abstract "During the past quarter, field work was sharply reduced due to cold weather. Only a few pilot study samples were taken by personnel from the University of Colorado in a local area in northeastern Colorado. A majority of effort went into preparation of reports on areas previously surveyed. Five reports, including a pilot study of the Estancia Valley, New Mexico, and a reconnaissance report of the San Juan Mountains, southwestern Colorado, were open filed through the ERDA GJO. Preparations are well along for surveys to be conducted during FY 77, including preparation of bid specifications for three large areas in south-central Alaska. Fluorometric analyses of water samples continued at a rate of 800 to 1000 per week. Late in the quarter an evaporative concentration procedure was implemented for Alaskan waters due to their very low uranium content. This procedure increases the normal sensitivity a factor of ten (to 0.02 ppb instead of 0.20 ppb uranium) but reduces the throughput to about 675 samples per week when used. Non-interference development of spectrochemical and X-ray fluorescent techniques for multielement analyses is continuing. Delayed-neutron counting of sediment and waters (those with greater than 10 ppb uranium) has continued at a rate of severalmore » hundred per day. The multielement capability by neutron activation analysis continues to be upgraded, particularly through automation techniques. Data management and statistical capabilities are also being improved and expanded as time permits.« less" @default.
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- W2916220110 date "1977-06-01" @default.
- W2916220110 modified "2023-09-24" @default.
- W2916220110 title "Hydrogeochemical and stream sediment reconnaissance of the National Uranium Resource Evaluation Program. Progress report, January--March 1977" @default.
- W2916220110 doi "https://doi.org/10.2172/7105858" @default.
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