| Autor: |
Cortini, Massimo, Hermes, O. Don |
| Zdroj: |
Contributions to Mineralogy and Petrology; March 1981, Vol. 77 Issue: 1 p47-55, 9p |
| Abstrakt: |
New Sr isotopic data on lavas and xenoliths from Somma-Vesuvius and other nearby volcanic areas (Phlegrean Fields and Ischia) are presented. Chemical and isotopic evidences show that not all the Phlegrean Fields rocks belong to the low K series, but some of them may be interpreted as low pressure differentiates of Somma magmas, i.e. as a part of the high K series. Two rock groups are defined in the Ischia low K series, which are well identified both in time and in chemical and isotopic features, and cannot be derived from the same magma source. The low K series in the studied area generally has lower Sr isotopic values than the high K series. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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