102 resultados para Exploration


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Radiometric logging of the drill holes was accomplished by means of a Geiger counter-type probe. Samples for chemical assay were selected after checking the core with a Geiger counter and correlation with the radiometric logging record. The exploration project did not disclose significant amounts of ore-grade material although encouraging indications were found at two different properties.

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Translation of Sur le Niger et au pays des Touaregs; la mission Hourst.

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Mode of access: Internet.

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"Workbook A."

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"November 12, 1952."

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"July 1959."