Measurement of radioelement contents of rocks of UGEP, S.E. Nigeria, by gamma-ray spectrometric and instrumental neutron activation analysis techniques

E. Uwah, Rolf Rosenberg

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1 Citation (Scopus)

Abstract

A combination of gamma-ray spectrometry and instrumental neutron activation analysis is adopted in the quantitative evaluation of the three major radioelements (U, Th and K) concentrations in some rock samples collected at previously delineated radiometric anomalies (Geological Survey of Nigeria, 1976), in the Ugep area of the Lower Benue Region of Nigeria. A preferential enrichment of Th to U and K is observed in most samples analysed, with UTh ratios ranging from 0.11 to 0.25.

K contents are fairly normal in some samples analysed, with Th (ppm)/K (%) ratios ranging from 2 to 5. Anomalous ThK ratios, Th (ppm)/K (%) ratios ranging from 2 to 5 up to 16, were obtained for samples from those areas identified in the airborne survey maps as “Th—anomaly zones” (Geological Survey of Nigeria, 1976).

Original languageEnglish
Pages (from-to)855 - 858
Number of pages4
JournalApplied Radiation and Isotopes
Volume44
Issue number5
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

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Nigeria
neutron activation analysis
gamma rays
rocks
geological surveys
anomalies
evaluation
spectroscopy

Cite this

@article{3023e68e41464572a8064958346e24ad,
title = "Measurement of radioelement contents of rocks of UGEP, S.E. Nigeria, by gamma-ray spectrometric and instrumental neutron activation analysis techniques",
abstract = "A combination of gamma-ray spectrometry and instrumental neutron activation analysis is adopted in the quantitative evaluation of the three major radioelements (U, Th and K) concentrations in some rock samples collected at previously delineated radiometric anomalies (Geological Survey of Nigeria, 1976), in the Ugep area of the Lower Benue Region of Nigeria. A preferential enrichment of Th to U and K is observed in most samples analysed, with UTh ratios ranging from 0.11 to 0.25.K contents are fairly normal in some samples analysed, with Th (ppm)/K ({\%}) ratios ranging from 2 to 5. Anomalous ThK ratios, Th (ppm)/K ({\%}) ratios ranging from 2 to 5 up to 16, were obtained for samples from those areas identified in the airborne survey maps as “Th—anomaly zones” (Geological Survey of Nigeria, 1976).",
author = "E. Uwah and Rolf Rosenberg",
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journal = "Applied Radiation and Isotopes",
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Measurement of radioelement contents of rocks of UGEP, S.E. Nigeria, by gamma-ray spectrometric and instrumental neutron activation analysis techniques. / Uwah, E.; Rosenberg, Rolf.

In: Applied Radiation and Isotopes, Vol. 44, No. 5, 1993, p. 855 - 858.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Measurement of radioelement contents of rocks of UGEP, S.E. Nigeria, by gamma-ray spectrometric and instrumental neutron activation analysis techniques

AU - Uwah, E.

AU - Rosenberg, Rolf

PY - 1993

Y1 - 1993

N2 - A combination of gamma-ray spectrometry and instrumental neutron activation analysis is adopted in the quantitative evaluation of the three major radioelements (U, Th and K) concentrations in some rock samples collected at previously delineated radiometric anomalies (Geological Survey of Nigeria, 1976), in the Ugep area of the Lower Benue Region of Nigeria. A preferential enrichment of Th to U and K is observed in most samples analysed, with UTh ratios ranging from 0.11 to 0.25.K contents are fairly normal in some samples analysed, with Th (ppm)/K (%) ratios ranging from 2 to 5. Anomalous ThK ratios, Th (ppm)/K (%) ratios ranging from 2 to 5 up to 16, were obtained for samples from those areas identified in the airborne survey maps as “Th—anomaly zones” (Geological Survey of Nigeria, 1976).

AB - A combination of gamma-ray spectrometry and instrumental neutron activation analysis is adopted in the quantitative evaluation of the three major radioelements (U, Th and K) concentrations in some rock samples collected at previously delineated radiometric anomalies (Geological Survey of Nigeria, 1976), in the Ugep area of the Lower Benue Region of Nigeria. A preferential enrichment of Th to U and K is observed in most samples analysed, with UTh ratios ranging from 0.11 to 0.25.K contents are fairly normal in some samples analysed, with Th (ppm)/K (%) ratios ranging from 2 to 5. Anomalous ThK ratios, Th (ppm)/K (%) ratios ranging from 2 to 5 up to 16, were obtained for samples from those areas identified in the airborne survey maps as “Th—anomaly zones” (Geological Survey of Nigeria, 1976).

U2 - 10.1016/0969-8043(93)90028-9

DO - 10.1016/0969-8043(93)90028-9

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EP - 858

JO - Applied Radiation and Isotopes

JF - Applied Radiation and Isotopes

SN - 0969-8043

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