Rare earth abundances and Rb-Sr systematics of basalts, gabbro, anorthosite and minor granitic rocks from the Indian Ocean Ridge System, Western Indian Ocean
Contributions to Mineralogy and Petrology
By: C. E. Hedge, K. Futa, C.G. Engel, and R.L. Fisher
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Abstract
Basalts dredged from the Mid-Indian Ocean Ridge System have rare earth, Rb, and Sr concentrations like those from other mid-ocean ridges, but have slightly higher Sr87/Sr86 ratios. Underlying gabbroic complexes are similar to the basalts in Sr87/Sr86, but are poorer K, Rb, and in rare earths. The chemical and isotopic data, as well as the geologic relations suggest a cumulate origin for the bulk of the gabbroic complexes. ?? 1979 Springer-Verlag.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Rare earth abundances and Rb-Sr systematics of basalts, gabbro, anorthosite and minor granitic rocks from the Indian Ocean Ridge System, Western Indian Ocean |
| Series title | Contributions to Mineralogy and Petrology |
| DOI | 10.1007/BF01164522 |
| Volume | 68 |
| Issue | 4 |
| Year Published | 1979 |
| Language | English |
| Publisher location | Springer-Verlag |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Contributions to Mineralogy and Petrology |
| First page | 373 |
| Last page | 376 |