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Publisher © Czech Geological Survey, ISSN: 2336-5757 (online), 0514-8057 (print)

Petrology and geochemistry of lamprophyres from the Czech part of the Krušné hory (Erzgebirge) batholith

 

Miroslav Štemprok, František Holub, Marta Chlupáčová, Miloš Lang, Jiří Novák, Edvín Pivec

Geoscience Research Reports 33, 2000 (GRR for 1999), pages 80–82

Full text (PDF, 0.15 MB)

 

Abstract

Lamprophyres of the Krušné hory Mts. occur in a spatial relation to Variscan granites in the regions of occurrences of uranium, tin-tungsten and molybdenum ores. Kersantites in the studied area prevail over minettes and spessartites. They are commonly associated with porphyrites and diorites into which they gradually pass. All lamprophyres are altered to a certain degree and some of these alternations can be ascribed to the influence of neighbouring granites. Lamprophyres belongs to the calc-alkaline group and in comparison with average minettes and kersantites they are significantly enriched in Rb, Cs, U, Th, and partly in Sn and Hf.