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A Statistical Interpretation of Sample Assay Data from the Getchell Mine, Humboldt County, Nevada.

Authors
Koch-GS Jr.; Link-RF
Source
NTIS: PB 192 003 :23 pages
Link
NIOSHTIC No.
10009026
Abstract
The distribution of gold in part of the Getchell Mine, Humboldt County, Nevada, is presented through the statistical analysis of 956 assays of rock cuttings from wagon-drill holes. Two methods to predict grade in undeveloped parts of the ore body are evaluated, and the possibility of sampling bias is tested. The distribution of gold is compared with that in three other Nevada gold deposits of the same type characterized by gold particles mostly of submicron size associated with carbonaceous rocks, and also with that in deposits with coarse-grained gold. Usually, fewer samples of a given type are required to make a satisfactory grade estimate for submicron deposits than for coarse-grained deposits. The economic consequence is that submicron gold deposits are likely to be less expensive to sample and evaluate than coarse-grained deposits.
Publication Date
19700101
Document Type
IH; Report of Investigation;
Fiscal Year
1970
NTIS Accession No.
PB-192003
NTIS Price
A03
Identifying No.
RI 7383
NIOSH Division
DRC;
Source Name
NTIS: PB 192 003
State
NV;
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