caa a22 4500 475813421 CHVBK 20180406123803.0 cr unu---uuuuu 170329e20001001xx s 000 0 eng 10.1007/PL00001053 doi (NATIONALLICENCE)springer-10.1007/PL00001053 Slug Flow—A Possible Explanation for Hydrogeochemical Earthquake Precursors at Bad Brambach, Germany [Elektronische Daten] [J. Heinicke, U. Koch] —Extensive hydrogeological, geochemical, radiometric and hydro-isotope investigations in the Vogtland region, Germany, since 1989 suggest a fluid connection between a special epicentral area (focal depth: 3-15 km; M L < 5) and a mineral spring at Bad Brambach. Twenty-six hydrogeochemical anomalies are related to earthquakes/swarmquakes of that epicentral area near Novy Kostel (CZ) during the last 9 years. The anomalies were originated by a slug-flow process in the fluid-filled fracture system near the surface. The gas component of the observed fluid (99 vol. % CO2) is of upper mantle/crustal origin. The fluid transport pathway to the surface is the seismically active Mariánské Lázné fault zone. The interpretation suggests an influence of the fluid system due to earthquake preparation processes. Birkhäuser Verlag Basel,, 2000 Key Words: Seismicity, seismotectonic faults, earthquake prediction, earthquake precursor, hydrological earthquake precursor, radon anomaly, spring water, slug flow, pressure pulse nationallicence Heinicke J. Sächsische Akademie der Wissenschaften zu Leipzig, Research Goup Freiberg, TU Bergakademie Freiberg, Bernhard-von-Cotta Str. 4, 09596 Freiberg, Germany. E-mail: heinicke@physik.tu-frciberg.de, DE aut Koch U. Sächsische Akademie der Wissenschaften zu Leipzig, Research Goup Freiberg, TU Bergakademie Freiberg, Bernhard-von-Cotta Str. 4, 09596 Freiberg, Germany. E-mail: heinicke@physik.tu-frciberg.de, DE aut https://doi.org/10.1007/PL00001053 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/PL00001053 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Heinicke J. Sächsische Akademie der Wissenschaften zu Leipzig, Research Goup Freiberg, TU Bergakademie Freiberg, Bernhard-von-Cotta Str. 4, 09596 Freiberg, Germany. E-mail: heinicke@physik.tu-frciberg.de, DE aut NATIONALLICENCE 700 1- Koch U. Sächsische Akademie der Wissenschaften zu Leipzig, Research Goup Freiberg, TU Bergakademie Freiberg, Bernhard-von-Cotta Str. 4, 09596 Freiberg, Germany. E-mail: heinicke@physik.tu-frciberg.de, DE aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer