NUCLEAR REACTIONS IN IRON METEORITES

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Geokhimiya (U.S.S.R.) For English translation 1956-63 see Geochemistry (USSR)

OSTI ID:4819914

Vinogradov, A P; Lavrukhina, A K; Revina, L D

Iron spallation by cosmic particles is the chief nuclear process in iron meteorites. About 10/sup 07/ g/g of cosmogenic isotopes per gram of meteorite accumulate during 4.5 x 10/sup 9/ years. The stable isotopes Ar/sup 36/, Ar/sup 38/, K/sup 40/, Sc/sup 45/, and V/sup 50/ in iron meteorites are of cosmogenic origin. Observed anomalies in the isotopic composition of argon and potassium may be explained by deep spallation reactions. For isotopes of vanadium and titanium and of other elements, the abundance of which is 10/sup -6/ to 10/sup -7/ g/g, shifts in the isotopic composition in iron meteorites relative to rocks of the earth may be expected. Equilibrium activity values were estimated for long- lived cosmogenic nuclei detected in iron meteorites. The average effective energy of nuclei formation A approximates 20 and approximates 40 was estimated. (auth)

• Research Organization: Vernadskii Inst. of Geochemistry and Analytical Chemistry, Moscow
• NSA Number: NSA-16-006886
• OSTI ID: 4819914
• 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. 11; ISSN GEOKA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ARGON 36
ARGON 38
ASTROPHYSICS
COSMIC RADIATION
EARTH
ELEMENTS
ENERGY RANGE
FISSION
HALF-LIFE
INTERACTIONS
IRON
ISOTOPES
METEORITES
PHYSICS
POTASSIUM 40
QUANTITY RATIO
ROCKS
SCANDIUM 45
TITANIUM
VANADIUM 50