New Geochemistry Data of Ultrabasic Rocks from Eastern Surroundings of the Karkonosze Granite Intrusion (Sudetes, SW Poland)

• Autorzy: Gunia P. , Ziółkowska-Kozdrój M. , Kozdrój W.
• Języki publikacji: EN

Abstrakty

EN

This paper presents results of preliminary geochemical studies of ultrabasic rocks occurring in the eastern part of the metamorphic envelope of the Karkonosze granite intrusion. They fom two small, stock-shaped bodies within: 1) amphibolites (locality: popiel Hill, nearby Janowice Wielkie) and (2) amongst greenschists (locality: Niedamirów). obtained results indicate that theymay represent subduction-related cumulates formed in early stages of the fractional crystallisation of the ultrabasic melt. The lack of any deformational features in analysed rocks suggests their emplacement just after the main phase of regional metamorphism, which affected their host rocks. A Lower Carboniferous age of these intrusions and their closely relationship to an early volcanic activity recorded in sedimentary series of the Intrasudetic Basin also is postulated.

Słowa kluczowe

EN

ultrabasic rocks; Karkonosze granite intrusion; Sudetes; geochemistry

• Wydawca: Centrum Upowszechniania Nauki PAN
• Czasopismo: Bulletin of the Polish Academy of Sciences. Earth Sciences
• Rocznik: 1998
• Tom: Vol. 46, nr 2
• Strony: 93--108
• Opis fizyczny: Bibliogr. 43 poz.

Twórcy

autor

Gunia P.

autor

Ziółkowska-Kozdrój M.

autor

Kozdrój W.

• Instytut Nauk Geologicznych Uniwersytetu Wrocławskiego Pl. M. Borna 9 50-205 Wrocław