STUDIES ON THE ABSOLUTE AGE OF URANIFEROUS MINERALS OF KATANGA AND NORTHERN RHODESIA

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Ann. Musee Roy. Afrique Centrale, Ser. in 8, Sci. Geol.

OSTI ID:4663881

Cahen, L; Pasteels, P; Ledent, D; Bourguillot, R; van Wambeke, L; Eberhardt, P

The position of the U mineralizations in the Katanga stratigraphical column is discussed. It is shown that the major phase of folding postdates all or nearly all the Katanga succession, the powerful thrusting of the Katanga belt postdates the major folding, and most of the U occurrences are younger than the turusting or the folding and are thus posttectonic. The Rhodesian specimens available for study are described. The disseminated U mineralization of the specimens is shown to be epigenetic and posttectonic. This is corfirmed by the geochronological results. Results of chemical and isotopic analysis are discussed. It is concluded that there are two distinct mineralizations dated at 520 plus or minus 20 and 520 plus or minus 20 m.y. Secondary pftchblende veins in N. Rhodesia are approxr-mately dated at 365 plus or minus 40 and 235 plus or minus 35 m.y. (A.G.W.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-032265
• OSTI ID: 4663881
• Journal Information: Ann. Musee Roy. Afrique Centrale, Ser. in 8, Sci. Geol., Journal Name: Ann. Musee Roy. Afrique Centrale, Ser. in 8, Sci. Geol. Vol. Vol: o. 41
• Country of Publication: Country unknown/Code not available
• Language: French

Related Subjects

AGE ESTIMATION
CONGO KINSHASA
GEOCHEMISTRY
GEOLOGY
GEOLOGY, MINERALOGY, AND METEOROLOGY
ISOTOPES
QUALITATIVE ANALYSIS
RHODESIA
URANINITES
URANIUM MINERALS