Dyke swarm emplacement in the volcanic centre of the České středohoří Mts. (Böhmisches Mittelgebirge), Eger Rift, and its paleostress background

0145563 - GLU-S 20023200 RIV DE eng C - Conference Paper (international conference)
Cajz, Vladimír - Adamovič, Jiří
Dyke swarm emplacement in the volcanic centre of the České středohoří Mts. (Böhmisches Mittelgebirge), Eger Rift, and its paleostress background.
First International Workshop: Physical Geology of Subvolcanic Systems - Laccoliths, Sills, and Dykes (LASI). Freiberg: Technische Universität Bergakademie Freiberg, 2002 - (Breitkreuz, C.; Mock, A.; Petford, N.), s. 10-12. Wissenschaftliche Mitteilungen. Institut für Geologie., 20.
[International Workshop: Physical Geology of Subvolcanic Systems - Laccoliths, Sills, and Dykes (LASI)/1./. Freiberg (DE), 12.10.2002-14.10.2002]
R&D Projects: GA AV ČR IAA3013102
Keywords : České středohoří Mts. volcanic centre * radiating dyke swarm emplacement
Subject RIV: DB - Geology ; Mineralogy

The statistical evalution of newly measured data of the dyke swarm orientations show close structural affinity between dykes of lamprophyres and semilamprophyres, and their considerable structural difference from felsic dykes. The analysis of intrusive geometrics of bodies of hypabyssal rocks as vell as the difference in strike patterns of the dyke swarm rocks indicate a change in regional stress field in the Eger Rift at around 30 Ma.
Permanent Link: http://hdl.handle.net/11104/0043140