Solar wind gases, cosmic-ray spallation products and the irradiation history of Apollo II samples
Journal Article
·
· Porceedings of the Apollo II Lunar Science conference; (United States)
OSTI ID:6168244
The isotopic abundances of the rare gases in the fines are found to be similar to those previously reported for gas-rich meteorites. Relative to the heavy gases, Ne and He are depleted by factors of 2 to 5 and 10 respectively. Kr-Kr/sup 81/ ages of rocks 10017, 10047, 10057, 10071, and of the soil cover a range of from 47 to 509 m.y. K-Ar ages of type A rocks lie between 2 to 3 and 2 to 9 billion years, that of type B rock 10047 is 3 to 5 b.y. It is suggested that varying relative production rates of the Kr and Xe isotopes in the rocks are due to differences in chemical composition as well as different irradiation conditions.
- Research Organization:
- Univ. of California, San Diego, La Jolla
- OSTI ID:
- 6168244
- Journal Information:
- Porceedings of the Apollo II Lunar Science conference; (United States), Journal Name: Porceedings of the Apollo II Lunar Science conference; (United States) Vol. 2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640107* -- Astrophysics & Cosmology-- Planetary Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AGE ESTIMATION
APOLLO PROJECT
ARGON
CHEMICAL COMPOSITION
DATA
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
GASES
HELIUM
INFORMATION
IRRADIATION
ISOTOPE RATIO
KRYPTON
LUNAR MATERIALS
MASS SPECTROMETERS
MATERIALS
MEASURING INSTRUMENTS
NEON
NONMETALS
NUCLEAR REACTIONS
NUMERICAL DATA
RARE GASES
SOLAR ACTIVITY
SOLAR WIND
SPALLATION
SPECTROMETERS
XENON
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AGE ESTIMATION
APOLLO PROJECT
ARGON
CHEMICAL COMPOSITION
DATA
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
GASES
HELIUM
INFORMATION
IRRADIATION
ISOTOPE RATIO
KRYPTON
LUNAR MATERIALS
MASS SPECTROMETERS
MATERIALS
MEASURING INSTRUMENTS
NEON
NONMETALS
NUCLEAR REACTIONS
NUMERICAL DATA
RARE GASES
SOLAR ACTIVITY
SOLAR WIND
SPALLATION
SPECTROMETERS
XENON