| Abstract: | The strontium isotopic compositions have been determined for twelve tholeiitic basalts dredged from the Gordo and Juan de Fuca Rises. Sr87/Sr86 ratios range from 0.7012 to 0.7031 and average 0.7026. These data, combined with other data from the East Pacific Rise indicate that tholeiite basalts being erupted along the active rises, in the Pacific Ocean, contain less radiogenic Sr87 than basalts erupted on the islands. These isotopic differences between the ocean-ridge tholeiite and the more alkali island basalts indicate that variations in Rb/Sr have persisted in the mantle for billions of years. The possible origins and distribution of these heterogeneties are discussed. ?? 1970 Springer-Verlag. |
| Genre: | Article |
| ProdID: | 70001639 |
| Citation Author: | Hedge, C. E.; Peterman, Z. E. |
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| Citation End Page: | 120 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Contributions to Mineralogy and Petrology |
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| Citation Publisher: | Springer-Verlag |
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| Citation Search Results Text: | The strontium isotopic composition of basalts from the Gordo and Juan de Fuca Rises, northeastern Pacific Ocean; 1970; Article; Journal; Contributions to Mineralogy and Petrology; Hedge, C. E.; Peterman, Z. E. |
| Citation Start Page: | 114 |
| Citation Volume: | 27 |
| Citation Year: | 1970 |
| Type: | citation/reference |
| Text: | The strontium isotopic composition of basalts from the Gordo and Juan de Fuca Rises, northeastern Pacific Ocean; 1970; Article; Journal; Contributions to Mineralogy and Petrology; Hedge, C. E.; Peterman, Z. E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1007/BF00371978 |
| Date Other: | Tue, 28 Sep 2010 23:09 -0500 |
| Publisher: | Springer-Verlag |
