GROUND FOLLOW - UP OF SOME RADIOMETRIC ANOMALIES AT JENGRE, PLATEAU STATE, USING GAMMA RAY SPECTROMETRY
GROUND FOLLOW - UP OF SOME RADIOMETRIC ANOMALIES AT JENGRE, PLATEAU STATE, USING GAMMA RAY SPECTROMETRY
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Date
1993-06
Authors
LAWAL, AHMED AMINU
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Abstract
The aero-radiometric' survey map of Lere
(sheet 147) was studied with a view to selecting
an area for detailed ground investigation to
determine the radioelement potentials of the
region. The map revealed several anomalies out
of which the one with high uranium count, low
potassium count and zero magnetic intensity
occuring on flight line 32 was choosen for further
ground investigation.
The ground spectrometric investigation
was aimed at characterising the anomaly in terms
of its radioelements content ie uranium, thorium
and potassium. The investigation was particularly
conducted to determine the uranium potentials of
the anomalies detected in the region. Data was
collected using a DISA-300 gamma ray spectrometer
at stations spaced 50m apart. Analysis of data
indicated that about 30% of the surveyed area could
be characterised as an area of possible uranium
mineralization.
Available data from uranium geochemistry was
compared with the equivalent uranium concentrations
calculated from the field gamma-ray spectrometric
data. The comparison showed that the uranium
concentrations in the area may be of low grade.
Thus an independent geochemical analysis of the rock
samples in the area need be carried out.
Description
A THESIS SUBMITTED TO THE POST GRADUATE SCHOOL,
AHMADU BELLO UNIVERSITY, ZARIA IN PARTIAL FULFILMENT
OF THE REQUIREMENTS FOR THE AWARD OF THE
DEGREE OF MASTER OF SCIENCE IN APPLIED GEOPHYSICS.
Keywords
GROUND FOLLOW - UP, RADIOMETRIC, RADIOMETRIC ANOMALIES, JENGRE, PLATEAU STATE, GAMMA RAY SPECTROMETRY