DOI: 10.1007/s00531-014-1133-3
Scopus记录号: 2-s2.0-84935835961
论文题名: Volcano-tectonic structures and CO<inf>2</inf>-degassing patterns in the Laacher See basin, Germany
作者: Goepel A. ; Lonschinski M. ; Viereck L. ; Büchel G. ; Kukowski N.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2015
卷: 104, 期: 5 起始页码: 1483
结束页码: 1495
语种: 英语
英文关键词: Bathymetry
; CO2 vents
; East-Eifel Volcanic Field
; Laacher See Volcano
Scopus关键词: bathymetry
; carbon dioxide
; degassing
; digital elevation model
; tectonic structure
; volcanic eruption
; volcano
; Germany
; Laacher See
; Rhineland-Palatinate
英文摘要: The Laacher See Volcano is the youngest (12,900 year 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 51 m) 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. © 2014, Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84935835961&doi=10.1007%2fs00531-014-1133-3&partnerID=40&md5=56bbd29cee7b796d41466023c1893399
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70279
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Institute of Geosciences, Friedrich Schiller University, Burgweg 11, Jena, Germany
Recommended Citation:
Goepel A.,Lonschinski M.,Viereck L.,et al. Volcano-tectonic structures and CO<inf>2</inf>-degassing patterns in the Laacher See basin, Germany[J]. International Journal of Earth Sciences,2015-01-01,104(5)