U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Report of Investigations 8264: Radon Emanation from Domestic Uranium Ores Determined by Modifications of the Closed-Can, Gamma-Only Assay Method

Public Domain
File Language:
English


Details

  • Personal Author:
  • Corporate Authors:
    United States. Bureau of Mines
  • Description:
    Emanation coefficients of 950 samples of domestic uranium ore were successfully and rapidly determined with fair precision by modifications of the closed-can, gamma-only assay method, using commercially available or similar equipment. Coefficients range from less than 1 to 91 percent. Emanation varies considerably within each mine and area, but distinct differences among major mining areas were found, ranging from 7.5 percent for moss back member, Chinle Formation, southwest Lisbon Valley, Utah, to 56.6 percent for Ft. Union Formation, Powder River Basin, Wyoming. Coefficients also vary with (1) uranium mineralogy; (2) radium mineralogy; (3) lithology of host rocks; (4) grain size of uranium and radium minerals; (5) comminution of ore; (6) estimated porosity and permeability; (7) moisture content; (8) ore grade; (9) supposed mobility of deposits; age of deposits is unknown but limited by (10) age of host rocks which shows only doubtful correlation with emanation. Data obtained may be used to evaluate effects of investigated parameters on radon concentration in mines and thus to select efficient control measures. Drill-core emanation data allow estimates of probable radon problems in undeveloped deposits. [Description provided by NIOSH]
  • Subjects:
  • Series:
    Mining Publications
  • Subseries:
    Report of Investigations
  • ISSN:
    1066-5552 (print)
  • Publisher:
    United States. Bureau of Mines
  • Document Type:
    Text
  • Genre:
    Case Report
  • Place as Subject:
  • Rights:
    Public Domain
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Division:
    DRC - Denver Research Center
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    82 pdf pages
  • Contributor:
    Maxson, M. J. ; Hixson, H. C. ; Seep, Ted ; Beroni, E. P. ; Curry, D. L. ; Malan, R. T. ; Dodd, P. H. ; Vandenbos, G. Robert
  • NIOSHTIC Number:
    nn:10001619
  • NTIS Accession Number:
    PB-279647
  • Citation:
    NTIS: PB 279 647; :1-74
  • Federal Fiscal Year:
    1978
  • Peer Reviewed:
    False
  • Source Full Name:
    NTIS: PB 279 647
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:85633bf5974f34a773f389a65c436e4896ec19316dac1abe309486de5fadf51a02c221a4e35db60cbffb552e5fae6a3cfff25f41f12871600ac3e3dbd33167ee
  • Download URL:
  • File Type:
    Filetype[PDF - 4.46 MB ]
PREVIOUS
File Language:
English
ON THIS PAGE
Details
CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.

As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP