Geochemical investigations of pyroxenes from Lower Cretaceous volcanics from boreholes of the Great Hungarian Plain
Originally the lower cretaceous volcanics known from boreholes of the Great Hungarian Plain proved to be feldspar-rich basaltic rocks. They are highly altered volcanics (Mg-metasomatism, spilitisation, weathering), and they contain as fresh component parts some grains of clinopyroxene. From electron...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Szeged
1996
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| Sorozat: | Acta mineralogica-petrographica
37 |
| Kulcsszavak: | Kőzettan, Ásványtan, Földtan, Geokémia |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/24835 |
| Tartalmi kivonat: | Originally the lower cretaceous volcanics known from boreholes of the Great Hungarian Plain proved to be feldspar-rich basaltic rocks. They are highly altered volcanics (Mg-metasomatism, spilitisation, weathering), and they contain as fresh component parts some grains of clinopyroxene. From electronmicroprobe analysis-data of the minerals is shown, that the pyroxenes are of diopside-salit-augite composition. It can be stated, that the analised grains refer to alcali magma, therefore the high alcalic content in the rocks is a result not only of metasomatism and contamination. The pyroxene analitical data supported the conccption of rock-origin, that they are products of continental within-plate volcanism. |
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| Terjedelem/Fizikai jellemzők: | 83-87 |
| ISSN: | 0365-8066 |