IRON ORE ANALYSIS UTILIZING NEUTRON CAPTURE GAMMA-RAYS
No abstract.<>15:020968Chlorine-36, produced by the interaction of cosmic particles with nuclei in meteorites, was measured in seven iron meteorites and in one stone meteorite. The decay rates for chlorine-36 in iron meteorites varied between 6.5 and 20.2 dpm/kg. From these and from the concentra tion of stable spallation products, the exposure ages of these meteorites were calculated. In this way it was found for six of the-meteorites examined exposure ages close to 500 million years. Only for the Sixhote Alin meteorite the quite different exposure age of 60 million years was measured. As this value is also definitely lower than that found by other authors for this meteorite, it is suggested that the Siknote Alin had been part of a bigger meteorite which was broken into pieces about 60 million years ago by a collision with another meteorite. (auth)
- Research Organization:
- Armour Research Foundation, Chicago
- NSA Number:
- NSA-15-020967
- OSTI ID:
- 4051587
- Journal Information:
- Trans. Am. Nuclear Soc., Journal Name: Trans. Am. Nuclear Soc. Vol. Vol: 4: No. 1
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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