Strontium Isotopes in some Seamount Basalts from the Northeastern Pacific Ocean
β Scribed by Subbarao, K. V.; Clark, G. S.; Forbes, R. B.
- Book ID
- 118050617
- Publisher
- NRC Research Press
- Year
- 1973
- Tongue
- English
- Weight
- 580 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0008-4077
- DOI
- 10.1139/e73-140
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The strontium isotopic compositions have been determined for twelve tholeiitic basalts dredged from the Gordo and Juan de Fuca Rises. SrST/SrS~ ratios range from 0.7012 to 0.7031 and average 0.7026. These data, combined with other data from the East Pacific Rise indicafr that tholeiite basalts being
Strontium isotopic differences between the basalts from the East Pacific and the Chile Rises (0.7026-0.7035, average 0.7028) and abyssal hills (0.7025-0.7037, average 0.7033) suggest that these are produced from different source materials. A progressive increase of K/Rb with decrease in SIz~/Sr s6 r