TY  - CONF
A1  - Kreuzer, Hans
A1  - Vejnar, Zdenek
A1  - Schüssler, Ulrich
A1  - Okrusch, Martin
A1  - Seidel, Eberhard
T1  - K-Ar dating in the Teplá-Domazlice zone at the western margin of the Bohemian Massif
N2  - K-Ar dating on hornblendes and micas from the Tepla Domazlice zone revealed a pattern of dates which significantly deviates from the mid-Carboniferous to early Permian one that is found in the adjacent low-pressure metamorphic Moldanubian and Saxothuringian. Especially for the Marianske Lazne metabasic complex, confirming early Czech determinations, the dates resemble the early Devonian pattern determined for the Munchberg Gneiss Massif and the Erbendorf-Vohenstrau zone of northeastern Bavaria. This supports the idea that all three units are remnants of a huge' complex which suffered a metamorphic overprint under medium-pressure conditions, probably in the early Devonian. Strong rejuvenation is found in the southern part of the Tepla-Domazlice zone by which micas and even two hornblendes were reset to mid-Carboniferous ages. According to the geological setting, part of the apparently preDevonian dates may be explained by inherited argon from earlier metamorphic and magmatic events, e.g. the high-pressure metamorphism documented in eciogitic relics. However, excess argon, caused by the mid-Carboniferous overprint cannot be excluded.
Y1  - 1988
UR  - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/2872
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-31106
ER  -