A simple and rapid method to locate fault traces by measurements of 214Bi in soils

J. LaBrecque; L. Melo; P. Cordoves; F. Urbani

doi:10.1023/b:jrnc.0000034869.85686.49

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 261: Issue 2

A simple and rapid method to locate fault traces by measurements of ²¹⁴Bi in soils

Authors:

J. LaBrecque

J. LaBrecque Instituto Venezolano de Investigaciones Cientificas (IVIC) Apartado 21827 Caracas 1020A Venezuela

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L. Melo

L. Melo Venezuelan Foundation for Seismological Research (FUNVISIS) Apartado 76880 Caracas Venezuela

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P. Cordoves

P. Cordoves Instituto Venezolano de Investigaciones Cientificas (IVIC) Apartado 21827 Caracas 1020A Venezuela

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F. Urbani

F. Urbani Universidad Central de Venezuela (UCV) Apartado 47028 Caracas 1041A Venezuela

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Pages:: 343–347

Online Publication Date:: 03 Nov 2004

Publication Date:: 17 Aug 2004

Article Category:: Research Article

DOI:: https://doi.org/10.1023/b:jrnc.0000034869.85686.49

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Abstract

A simple and rapid technique is presented to determine the relative counts of ²¹⁴Bi in surface soils to locate active fault traces of the El Pilar Fault in the state of Sucre, Venezuela. The method employes a portable differential gamma-ray spectrometer on site with 300 seconds of measuring time. Three transects across the El Pilar fault of very different geological aspects were studied. One of the advantages of this technique in respect to determining ²²²Rn in soil-gas is that no soil-gas probes are required to be inserted in the soil and it is not necessary to know the appropriate depth. Finally, it has been suggested that measurements of 1000 seconds would be preferred rather than 300 seconds for future studies even though this would limit the number of measurements to about 20 per day.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)