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

Topas quartzolite (greisen) near Chrastava in Northern Bohemia – metallogenic indicator of the W-Sn mineralization

Josef Klomínský, Ferry Fediuk, František Veselovský, Pavel Schovánek, Tomáš Jarchovský, Zdeněk Táborský

Geoscience Research Reports 37, 2004 (GRR for 2003), pages 112–114

Keywords: Northern Bohemia, Jizera orthogneiss, Lugicum, greisen, topaz quartzolite

Map sheets: Hrádek nad Nisou (03-13)

Full text (PDF, 0.29 MB)

Abstract

Two occurrences of topaz quartzolite are located along the north trending fault zone north of Chrastava township in Northern Bohemia. The rock reminding greisen consists of 65 % quartz, 32 % topaz, 2 % mica and accessory alkali feldspar, ilmenorutile and opaque ore. Dyke-like bodies of topaz quartzolite are indicators of high-temperature W-Sn mineralization of the greisen type which has been up to now dominant in Saxothuringicum (Krušné hory Mts.) only.