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Method of uranium prospecting in a mining division: development and results; La methode de prospection de l'uranium dans une division miniere: sa mise au point - ses resultats

Technical Report:

Abstract

The main object of this report is to present the development of the prospecting method in a given region, the Morvan, carried out by the Grury Mining Division of the C.E.A.; with regard to the uraniferous mineral distribution of which the existence only came to light progressively as the work advanced. After a description of the various techniques which follow on one from the other finishing up at mine workings and the specification of a workable tonnage of uranium, an overall aspect of the Job accomplished in the last twelve years is presented. The prospecting method has been profoundly modified since the beginning of the work. Over the years it has evolved as a function of the knowledge progressively acquired, of the way the indications and the uraniferous deposits lie. In addition it has been varied by adapting to the ground in question the remarkable new technique known as radiometry or the study of surface radioactivity. lt has also made use of certain geophysical or geochemical techniques, thus producing a range of field tests which enable an advanced reconnaissance of the under soil to be made before mining is begun. However al no time has it excluded the classical and  More>>
Authors:
Carrat, G. [1] 
  1. Commissariat a l'energie atomique et aux energies alternatives - Service des Recherches a la Division Grury CEA (France)
Publication Date:
Jul 01, 1959
Product Type:
Technical Report
Report Number:
CEA-R-1247
Resource Relation:
Other Information: 9 refs.
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 58 GEOSCIENCES; ALLUVIAL DEPOSITS; AUTUNITE; COST ESTIMATION; GEIGER-MUELLER COUNTERS; GEOCHEMICAL SURVEYS; GEOPHYSICAL SURVEYS; MINERALIZATION; NATURAL RADIOACTIVITY; PROSPECTING; RADIOMETERS; RESOURCE ASSESSMENT; SPATIAL RESOLUTION; URANIUM DEPOSITS
OSTI ID:
22669624
Research Organizations:
Commissariat a l'energie atomique et aux energies alternatives - CEA, Centre d'Etudes Nucleaires de Saclay, Service de Documentation, BP No.2, 91190 Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR1800525015509
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
22 page(s)
Announcement Date:
Mar 13, 2018

Technical Report:

Citation Formats

Carrat, G. Method of uranium prospecting in a mining division: development and results; La methode de prospection de l'uranium dans une division miniere: sa mise au point - ses resultats. France: N. p., 1959. Web.
Carrat, G. Method of uranium prospecting in a mining division: development and results; La methode de prospection de l'uranium dans une division miniere: sa mise au point - ses resultats. France.
Carrat, G. 1959. "Method of uranium prospecting in a mining division: development and results; La methode de prospection de l'uranium dans une division miniere: sa mise au point - ses resultats." France.
@misc{etde_22669624,
title = {Method of uranium prospecting in a mining division: development and results; La methode de prospection de l'uranium dans une division miniere: sa mise au point - ses resultats}
author = {Carrat, G.}
abstractNote = {The main object of this report is to present the development of the prospecting method in a given region, the Morvan, carried out by the Grury Mining Division of the C.E.A.; with regard to the uraniferous mineral distribution of which the existence only came to light progressively as the work advanced. After a description of the various techniques which follow on one from the other finishing up at mine workings and the specification of a workable tonnage of uranium, an overall aspect of the Job accomplished in the last twelve years is presented. The prospecting method has been profoundly modified since the beginning of the work. Over the years it has evolved as a function of the knowledge progressively acquired, of the way the indications and the uraniferous deposits lie. In addition it has been varied by adapting to the ground in question the remarkable new technique known as radiometry or the study of surface radioactivity. lt has also made use of certain geophysical or geochemical techniques, thus producing a range of field tests which enable an advanced reconnaissance of the under soil to be made before mining is begun. However al no time has it excluded the classical and fundamental concept of geological ground sampling using the hammer and the compass. In this field an attempt has been made to use information provided by a precise geomorphological and tectonic test. Most of this work was carried out on the granitic ground of the Morvan, and the deposits considered in this study are all typically hydrothermal. Reprint of a paper published in 'Annales des Mines', March 1959 [French] Le but principal de cet expose est de presenter la mise au point de la methode de prospection d'une region determinee, le Morvan, suivie par la Division miniere de Grury du Commissariat a l' energie atomique, en fonction de la repartition de la mineralisation uranifere dont la realite n'est apparue que tres progressivement au fur et a mesure de l'avancement des travaux. Apres l'expose des diverses techniques qui se relaient pour aboutir aux travaux miniers et a l'individualisation d'un tonnage d'uranium exploitable, est presente l'aspect synthetique de l'operation realisee depuis douze annees. La methode de prospection a fait l'objet de modifications profondes depuis le debut des travaux. Au cours des annees, elle a evolue en fonction de la connaissance progressivement acquise du mode de gisement des indices et des gisements uraniferes. En outre, elle s'est diversifiee en adaptant au terrain la merveilleuse technique nouvelle que nous appelons la radiometrie ou etude des radioactivites superficielles. Elle a egalement utilise un certain nombre de techniques geophysiques ou geochimiques, realisant ainsi sur le terrain une gamme de travaux qui permettent une reconnaissance poussee du sous-sol avant le debut des travaux miniers. Mais a aucun moment elle n'a songe a abandonner la conception classique et fondamentale du leve geologique de terrain au marteau et a la boussole. Dans ce domaine, elle a tente de tirer parti des enseignements fournis par un leve geomorphologique et tectonique precis. La plupart de ces travaux ont ete effectues sur les terrains granitiques du Morvan et les gisements qui sont consideres dans cette etude sont tous typiquement hydrothermaux. Reproduction d'un article publie dans 'Annales des Mines', Mars 1959.}
place = {France}
year = {1959}
month = {Jul}
}