Mineral Composition of the Gyód Serpentinite Body, Southern Transdanubia, Hungary | Szegedi Tudományegyetem, Ásványtani, Geokémiai és Kőzettani Tanszék

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Mai névnapok:

Kende, Eufrozina

Mineral Composition of the Gyód Serpentinite Body, Southern Transdanubia, Hungary

Reference:
Acta Mineralogica-Petrographica, Szeged 2002, Vol. 43, pp. 71-77

Szerző:

Kovács Gábor
Dr. Raucsik Béla
Horváth Péter

Abstract:
Re-examination of mineral composition of Gyód 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 (10-30 %) and chlorite (10-20 %). Chrysotile (2Orcl symmetry orthochrysotile) and 1T-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 together with calcite and orthopyroxene. Olivine (Fo90-91) and orthopryroxene (En88-93) 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 Gyód Serpentinite Body was probably formed in an island-arc environment.

 

Letöltés

acta2002, harzburgite, mineral chemistry, serpentinization, Tisia unit

 

 




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