| Autor: |
Fernández, A. C., Hörmann, P. K., Kussmaul, S., Meave, J., Pichler, H., Subieta, T. |
| Zdroj: |
Mineralogy and Petrology; September 1973, Vol. 19 Issue: 3 p149-172, 24p |
| Abstrakt: |
Summary 33 major element analyses and Rb, Sr, Co, Cu, Ni, Zn, and Zr trace element data of the young volcanic rocks of SW-Bolivia are presented. These widespread volcanics of Cenozoic age which are contemporaneous with those in the adjacent northern Chile can be divided into four sequences: lavas and pyroclastics of the Julaca and Rondal Formations (Miocene), ignimbrites of the Quehua superior Formation (Miocene/Pliocene), ignimbrites of the Ignimbrite Formation (Pliocene to lower Pleistocene), and lavas and pyroclastics of the Strato-volcano Formation (Pleistocene to Holocene). |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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