IASPEI - Picture Gallery

IUGG XXIV General Assembly July 2-13, 2007 Perugia, Italy
(S) - IASPEI - International Association of Seismology and Physics of the Earth's
Interior
JSS001 Poster presentation 1725
Feature of the analysesof heterogeneous ores
Dr. Artush Tamrazyan
IUGG , IASPEI JSS IASPEI
At X-ray radiometric approbation (XRA) of ores in conditions in situ or at their processing and
enrichment, object of research are not homogeneous, heterogeneous environments. To present time a
plenty of the works, the influences of heterogeneous effect devoted to studying on results XRA is
known. However, all questions of the theory of heterogeneous effect, especially ways of his(its) account
yet are not solved. We receive analytical formulas for calculation of streams of secondary radiations
from heterogeneous environments with the various sizes and distributions of heterogeneouses. Taking
into account, that distribution of ore grains in the heterogeneous environment has probability character
for reception of a full picture cases their discrete binomial and continuous (normal) distributions are
considered. With the purpose of finding - out of character of influence of large sizes particles and the
law of their distribution to size of a stream of secondary radiations, the settlement data are compared to
results of experimental researches. For experiment with fractionated chalcopyrite and syenite some
groups of test in which contents of ore grains varied both the sizes, and were made. From comparison
settlement and experimental data it is visible, that at the big sizes of particles calculations on binomial
distribution are better coordinated with experiment, and with the small sizes the good consent with
experiment is observed for normal distribution. The received data allow to conclude, that in the initial
stage of processing and enrichment of ores distribution of ore inclusions in the environment submits
binomial law, and in the following stages of processing when the sizes of particles and therefore, the
quantity of grains in individual volume their distribution is close to the normal law is increased decrease.
Knowing character of change of the law of distribution of ore grains in ore in different stages of
itsdevelopment, the appropriate ways of realization X-ray radiometric method, taking into account
influence of effect of heterogeneity easily get out.
Keywords: x ray radiometric