Petrography and mineral chemistry of rhönite in ocelli alkali basalt from Villány Mts, SW Hungary
In ocelli of alkali basalts from the Villány Mts (SW Hungary) rhonite has been found recently. This is among the first reports of rhonite from ocelli in basaltic dykes, as well as from the southern part of the Pannonian Basin. This new occurrence of rhonite has been analysed and described in this pa...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
Department of Mineralogy, Geochemistry and Petrology, University of Szeged
Szeged
2003
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| Sorozat: | Acta mineralogica-petrographica
44 |
| Kulcsszavak: | Földtan, Ásványtan, Kőzettan |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/25109 |
| Tartalmi kivonat: | In ocelli of alkali basalts from the Villány Mts (SW Hungary) rhonite has been found recently. This is among the first reports of rhonite from ocelli in basaltic dykes, as well as from the southern part of the Pannonian Basin. This new occurrence of rhonite has been analysed and described in this paper, in light of the hypotheses of formation of ocelli and crystallisation conditions of rhonite. On the basis of textural observations and mineral chemistry, we suggest that the ocelli was formed in the late stage of the crystallisation of magma, near the Earth's surface, at relatively high temperature but low pressure. Rhonite in ocelli crystallised as a primary phase in these conditions. |
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| Terjedelem/Fizikai jellemzők: | 51-56 |
| ISSN: | 0365-8066 |