Mineral composition of the Gyód serpentinite body, Southern Transdanubia, Hungary
Re-examination of mineral composition of Gy6d Serpentinite Body is accounted for by the different results in literature. On the base of qualitative and semiquantitative XRD determinations, the main phases of the examined rocks are mostly serpentine minerals (30-60 %), talc (10- ?0 %) and chlorite (1...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
Department of Mineralogy, Geochemistry and Petrology, University of Szeged
Szeged
2002
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| Sorozat: | Acta mineralogica-petrographica
43 |
| Kulcsszavak: | Földtan, Kőzettan, Ásványtan |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/25100 |
| Tartalmi kivonat: | Re-examination of mineral composition of Gy6d Serpentinite Body is accounted for by the different results in literature. On the base of qualitative and semiquantitative XRD determinations, the main phases of the examined rocks are mostly serpentine minerals (30-60 %), talc (10- ?0 %) and chlorite (10-20 %). Chrysotile (20r d symmetry orthochrysotile) and lT-lizardite could have been analysed surely in several samples. The amount of dolomite, quartz, olivine and spinel reaches 10-20 % in several samples; however, these are generally minor phases ogether with calcite and orthopyroxene. Olivine (F090.91) and orthopryroxene (Eng8.93) composition and also Cr# of spinels suggest that the examined rocks are the partial melting residua of a mantle source material. On the base of spinel composition, we assumed that the Gy6d Serpentinite Body was probably formed in an island-arc environment. |
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| Terjedelem/Fizikai jellemzők: | 71-77 |
| ISSN: | 0365-8066 |