caa a22 4500 606150110 CHVBK 20210128100537.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s00531-014-1133-3 doi (NATIONALLICENCE)springer-10.1007/s00531-014-1133-3 Volcano-tectonic structures and CO2-degassing patterns in the Laacher See basin, Germany [Elektronische Daten] [Andreas Goepel, Martin Lonschinski, Lothar Viereck, Georg Büchel, Nina Kukowski] The Laacher See Volcano is the youngest (12,900year BP) eruption center of the Quarternary East-Eifel Volcanic Field in Germany and has formed Laacher See, the largest volcanic lake in the Eifel area. New bathymetric data of Laacher See were acquired by an echo sounder system and merged with topographic light detection and ranging (LiDAR) data of the Laacher See Volcano area to form an integrated digital elevation model. This model provides detailed morphological information about the volcano basin and results of sediment transport therein. Morphological analysis of Laacher See Volcano indicates a steep inner crater wall (slope up to 30°) which opens to the south. The Laacher See basin is divided into a deep northern and a shallower southern part. The broader lower slopes inclined with up to 25° change to the almost flat central part (maximum water depth of 51m) with a narrow transition zone. Erosion processes of the crater wall result in deposition of volcaniclastics as large deltas in the lake basin. A large subaqueous slide was identified at the northeastern part of the lake. CO2-degassing vents (wet mofettes) of Laacher See were identified by a single-beam echo sounder system through gas bubbles in the water column. These are more frequent in the northern part of the lake, where wet mofettes spread in a nearly circular-shaped pattern, tracing the crater rim of the northern eruption center of the Laacher See Volcano. Additionally, preferential paths for gas efflux distributed concentrically inside the crater rim are possibly related to volcano-tectonic faults. In the southern part of Laacher See, CO2 vents occur in a high spatial density only within the center of the arc-shaped structure Barschbuckel possibly tracing the conduit of a tuff ring. Springer-Verlag Berlin Heidelberg, 2014 Laacher See Volcano nationallicence East-Eifel Volcanic Field nationallicence CO2 vents nationallicence Bathymetry nationallicence Goepel Andreas Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany aut Lonschinski Martin Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany aut Viereck Lothar Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany aut Büchel Georg Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany aut Kukowski Nina Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany aut International Journal of Earth Sciences Springer Berlin Heidelberg 104/5(2015-07-01), 1483-1495 1437-3254 104:5<1483 2015 104 531 https://doi.org/10.1007/s00531-014-1133-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00531-014-1133-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Goepel Andreas Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany aut NATIONALLICENCE 700 1- Lonschinski Martin Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany aut NATIONALLICENCE 700 1- Viereck Lothar Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany aut NATIONALLICENCE 700 1- Büchel Georg Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany aut NATIONALLICENCE 700 1- Kukowski Nina Institute of Geosciences, Friedrich Schiller University, Burgweg 11, 07749, Jena, Germany aut NATIONALLICENCE 773 0- International Journal of Earth Sciences Springer Berlin Heidelberg 104/5(2015-07-01), 1483-1495 1437-3254 104:5<1483 2015 104 531