URANIUM AND THORIUM IN GRANITOIDS OF THE KAIB MASSIF (CENTRAL KAZAKHSTAN)

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Geokhimiya (U.S.S.R.) For English translation 1956-63 see Geochemistry (USSR)

OSTI ID:4765759

Dmitriev, L V; Leonova, L L

In granitoids of the chief phase, the phase of additional intrusions and in vein rocks of the first stage of the Kaib massif (Certral Kazakhstan) the uranium and thorium content is constant and equals 2.5 ---3 gamma and DELTA -- ~ 24 gamma respectively. The vein rocks of the lI stage contain the least amount (~ 1 gamma ) of uranium. An enrichment in uranium occurs only in the postmagmatic stage in the process of greysening or high-temperature silicification. The interaction of the granite melt with intruding rocks (formation of the hybrid facies and the facies of heightened alkalinity) does not influence the uranium and thorium distribution. (auth)

• Research Organization: Vernadskii Inst. of Geochemistry and Analytical Chemistry, Academy of Sciences, Moscow
• NSA Number: NSA-16-033292
• OSTI ID: 4765759
• Journal Information: Geokhimiya (U.S.S.R.) For English translation 1956-63 see Geochemistry (USSR), Journal Name: Geokhimiya (U.S.S.R.) For English translation 1956-63 see Geochemistry (USSR) Vol. Vol: No. 8; ISSN GEOKA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

DISTRIBUTION
ENRICHMENT
GEOCHEMISTRY
GEOLOGY, MINERALOGY, AND METEOROLOGY
GRANITES
QUANTITY RATIO
ROCKS
THORIUM
URANIUM