RECENT IMPROVEMENT IN OUR KNOWLEDGE OF COSMIC ABUNDANCES
Journal Article
·
· Journal of Chemical Education (U.S.)
Experimental cosmic abundance data since 1956 are reviewed with emphasis on data from refined annalyses of chondritic meteorites. Data on iron and stony- iron meteorites since 1958 are also included. In the Z = 3to 29 range the values except for lithium are in reasonably good agreement with those of suess and Urey (1956). For Z = 32 to 71 serious discrepancies exist between the new data and the values of Suess and Urey for Z = 35 and Z = 54. There is a large difference in barium abundance for chondrite falls and finds. The new value for indium is 100 times lower, and the rare-earth values are lower. At Z = 74 to 92, the elements mercury, thallium, lead, and bismuth all have much lower abundances than can be explained by current element synthesis theories. A new Th/sup 232//U/sup 238/ value of 3.3 is offered. 49 references. (T.R.H.)
- Research Organization:
- Univ. of Kentucky, Lexington
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-011880
- OSTI ID:
- 4081600
- Journal Information:
- Journal of Chemical Education (U.S.), Journal Name: Journal of Chemical Education (U.S.) Vol. Vol: 38; ISSN JCEDA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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