High-level volcanic–granodioritic intrusions from Zelezniak Hill (Kaczawa Mountains, Sudetes, SW Poland)
Published:January 01, 2004
Katarzyna Machowiak, Andrzej Muszyński, Richard Armstrong, 2004. "High-level volcanic–granodioritic intrusions from Zelezniak Hill (Kaczawa Mountains, Sudetes, SW Poland)", Physical Geology of High-Level Magmatic Systems, C. Breitkreuz, N. Petford
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New petrological and geochemical data on high level (c. 2 km2) silicic lava domes and laccoliths from the Kaczawa Mountains, Sudetes, SW Poland, are presented. The system comprises a carapace facies of exposed ignimbrites and spherlulitic rhyolites. Recovered core (drilled to 55 m) includes volcanic rocks ranging in composition from andesite to rhyodacite, and a plutonic facies of microgranite and granodiorite. Country rocks (greenschist-facies metavolcanogenic rocks) are contact metamorphosed to hornfels and cut by kersantite veins and a pipe breccia of diatremic origin. New 206Pb-238U zircon mineral ages from the volcanic and granitic...
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Physical Geology of High-Level Magmatic Systems
This book gives an up-to-date overview of the physical geology of sub-volcanic intrusions. Topics covered in this wide-ranging volume include important aspects of the field geology and physical volcanology of sills, laccoliths and sub-volcanic complexes, magma-sediment interaction and numerical and experimental studies aimed at quantifying more precisely the emplacement mechanics of high-level magmatic intrusions. Provocative papers ask whether laccoliths and high-level sills are forming today, and question the nature of the relationship between high-level intrusions and contemporaneous volcanic activity. Several contributions also deal with the more applied aspects of high-level magma emplacement and 3D seismic imaging of sill and laccolith complexes as relevant to the hydrocarbons industry. It is hoped that with the publication of this volume a consensus will emerge that will help to advance our understanding of the more important physical factors governing the emplacement of high-level intrusions in the continental crust, along with their wider geotectonic implications.