[an error occurred while processing this directive] Global Geology 2018, 21(4) 237-244 DOI:   10.3969/j.issn.1673-9736.2018.04.04  ISSN: 1673-9736 CN: 22-1371/P

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comparison
chemical uranium assay
uranium equivalent grade
error
replace
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CAO Yun
LUO Yi
LI Zheng
PubMed
Article by Cao Y
Article by Luo Y
Article by Li Z
Feasibility study on replacing chemical uranium assays with uranium equivalent grades at Husab Uranium Project, Namibia
CAO Yun, LUO Yi, LI Zheng
Sichuan Institute of Nuclear Geology, Chengdu 610052, China
ժҪ�� Formerly, uranium exploration at the Husab Uranium Project was based on sample chemical uranium assays with little uranium equivalent data (eU) obtained from γ probing. The high cost of performing chemical assays has a significant impact on the overall cost of uranium exploration. Between 2015 and 2016, the Resource Upgrade Project Zone 2 was undertaken at the Husab Project, which identified the reliability and feasibility of γ probing through comparison of chemical uranium assays with uranium equivalent grades. This project analyzed the sources of errors and proposed a method to correct them. Uranium equivalent data from gamma probing can be used to replace the chemical assays to reduce the cost and time, therefore increasing the efficiency for uranium exploration at the Husab Uranium Project.
�ؼ����� comparison   chemical uranium assay   uranium equivalent grade   error   replace  
Feasibility study on replacing chemical uranium assays with uranium equivalent grades at Husab Uranium Project, Namibia
CAO Yun, LUO Yi, LI Zheng
Sichuan Institute of Nuclear Geology, Chengdu 610052, China
Abstract: Formerly, uranium exploration at the Husab Uranium Project was based on sample chemical uranium assays with little uranium equivalent data (eU) obtained from γ probing. The high cost of performing chemical assays has a significant impact on the overall cost of uranium exploration. Between 2015 and 2016, the Resource Upgrade Project Zone 2 was undertaken at the Husab Project, which identified the reliability and feasibility of γ probing through comparison of chemical uranium assays with uranium equivalent grades. This project analyzed the sources of errors and proposed a method to correct them. Uranium equivalent data from gamma probing can be used to replace the chemical assays to reduce the cost and time, therefore increasing the efficiency for uranium exploration at the Husab Uranium Project.
Keywords: comparison   chemical uranium assay   uranium equivalent grade   error   replace  
�ո����� 2018-01-27 �޻����� 2018-07-04 ����淢������  
DOI: 10.3969/j.issn.1673-9736.2018.04.04
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Supported by Husab Uranium Project, Resource Upgrade Project Zone 2, Namibia.

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Conaway J W, Killeen P G. 1978. Quantitative uranium determinations from gamma-ray logs by application of digital time series analysis.Geophysics,43:1204-1221.
Hao J L, Chen N. 2017. Study report on correlation of thorium and uranium concentrations at Husab Uranium Project. Beijing:CGNPC Uranium Resouces Co., Ltd., 4-7. (in Chinese)
Inwood N, Brun S L, Craig S,et al. 2011. National instrument 43-101 technical report, Husab Uranium Project-May 2011 Project Update. Swakopmound:Swakop Uranium (Pty) Ltd., 38-40.
Qu Y H, Ding M S, Wen Z J, et al. 2003. Development of γ probing five-point deconvolution subdivision interpretation application. Urumchi:No.216 Brigade of Nuclear Industry, 2-3. (in Chinese)
Scott J H. 1963. Computer analysis of gamma-ray logs.Geophysics,28:457-465.
Scott J H, Dodd P H, Droullard P F,et al. 1961. Quantitative interpretation of gamma-ray logs.Geophysics,26:182-191.
Srivastava M, Godfrey M. 2012. JORC standard resource estimation No.18 uranium project, Erongo, Namibia. Windhoek:Zhonghe Resources (Namibia) Development (Pty) Ltd., 61-63.
Tang B. 1993. Method of γ logging subdivision interpretation. Beijing:Atomic Energy Press, 57-58. (in Chinese with English abstract)
Wu H S, Jiang Y, Tang S H,et al.1998. Nuclear technology exploration. Beijing:Atomic Energy Press, 146-165. (in Chinese)
Yu S Q, Du J N, Ding M S, et al. EJ/T 611-2005 specification for γ logging. Beijing:Commission of Science, Technology and Industry for National Defence, 5-30. (in Chinese)
Zheng D Y, Jiang X Q, Zhang J D,et al.2002. DZ/T 0199-2002 specifications for uranium mineral exploration. Beijing:Ministry of Land and Resources of the People's Republic of China, 11-12. (in Chinese)
Zhang Y, Hua R Z, Shi B S. 1990. Radioactive exploration. Beijing:Atomic Energy Press, 289-302. (in Chinese)
Zhu X Y, Li B X, Fu J S, et al. 2011. Namibia happy valley (EPL3602), No.18 uranium deposit geological report. Windhoek:Zhonghe Resources (Namibia) Development (Pty) Ltd., 118-123. (in Chinese)
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