THE APPLICATION OF THE LOW ACTIVITY BOREHOLE LOGGING TOOL TO THE IRON-ORE MINING-INDUSTRY

Authors
BORSARU M CERAVOLO C TCHEN T
Citation
M. Borsaru et al., THE APPLICATION OF THE LOW ACTIVITY BOREHOLE LOGGING TOOL TO THE IRON-ORE MINING-INDUSTRY, Nuclear geophysics, 9(1), 1995, pp. 55-62
Citations number
NO
Categorie Soggetti
Geosciences, Interdisciplinary","Mining & Mineral Processing","Nuclear Sciences & Tecnology
Journal title
Nuclear geophysics → ACNP
ISSN journal
09698086
Volume
9
Issue
1
Year of publication
1995
Pages
55 - 62
Database
ISI
SICI code
0969-8086(1995)9:1<55:TAOTLA>2.0.ZU;2-V
Abstract
The low activity spectrometric gamma-gamma borehole logging tool devel oped previously for the coal mining industry was tried in an iron ore deposit in 100 mm dia holes. The tool has an external diameter of 60 m m and uses a 1.8 MBq Cs-137 gamma-ray source with a 37x75 mm NaI(Tl) s cintillation detector. The tool is able to delineate the iron ore depo sit and predict its grade. This was demonstrated in three boreholes su rrounded by iron in the range 54-59% and with a standard deviation of +/- 0.9% (1sigma).