CONTRIBUTION TO THE RADIO-CHRONOLOGY OF SOME NATURAL DEPOSITS

Journal Article · Mon Jan 01 00:00:00 EST 1962 · Acad. Rep. Populare Romine, Studii Cercetari Fiz.

OSTI ID:4750066

Atanasiu, G

The results obtained for the dating of some natural deposits several thousand years old are reported. It was shown that some deposits of mineral waters contain only Ra and its descendants without any U which gives birth to the Ra. The U remains at some depth, fixed by physicochemical processes. By determinng the Ra of recent deposits of a similar source of mineral water and by determining the Ra of old deposits of the same source, the age of these deposits can be calculated. For example, for old deposits of chalky bedrock of the sources of Singeroz mineral water, an age of approximately 7900 years was found. Deeper beds of the same deposits have a greater age. Another method studied is based on the disintegration of C/sup 14/. It is shown how the radiocarbon of the atmosphere passes into stalactites and stalagmites of a cave where it produces a weak BETA activity of these concretions and, at the same time. an ionization of the air of the caves which contain chalky concretions during their formation. This method permits the dating of the cave concretions and an evaluation of the ionization of the air. It was found that the formation of a gram-mole of concretion produces in the air of the caves a quantity of 3 x 10/sup 5/ ions/min approximately. (tr-auth)

• Research Organization: Univ. of Bucharest
• NSA Number: NSA-17-014483
• OSTI ID: 4750066
• Journal Information: Acad. Rep. Populare Romine, Studii Cercetari Fiz., Vol. Vol: 13; Other Information: Orig. Receipt Date: 31-DEC-63
• Country of Publication: Country unknown/Code not available
• Language: Rumanian

Related Subjects

GEOLOGY, MINERALOGY, AND METEOROLOGY
AGE ESTIMATION
AIR
ATMOSPHERE
BETA DECAY
BETA PARTICLES
CALCIUM CARBONATES
CARBON 14
CAVES
CHALK
CHEMICAL REACTIONS
DECAY
DEPOSITS
DISTRIBUTION
GEOCHEMISTRY
GROUND WATER
IONIZATION
MINERALS
PRECIPITATION
QUANTITATIVE ANALYSIS
QUANTITY RATIO
RADIOACTIVITY
RADIUM
ROCKS
URANIUM