10.5880/fidgeo.2022.026 Springsklee, Christina Christina Springsklee 0000-0001-7830-9794 Ludwig-Maximilians-University Munich, Munich, Germany Manga, Michael Michael Manga 0000-0003-3286-4682 University of California, Berkeley, USA Ludwig-Maximilians-University Munich, Munich, Germany Scheu, Bettina Bettina Scheu 0000-0002-0478-1049 Ludwig-Maximilians-University Munich, Munich, Germany Cimarelli, Corrado Corrado Cimarelli 0000-0002-5707-5930 Ludwig-Maximilians-University Munich, Munich, Germany Dingwell, Donald B. Donald B. Dingwell 0000-0002-3332-789X Ludwig-Maximilians-University Munich, Munich, Germany GFZ Data Services 2022 Mudvolcano Volcanic lightning Methane self-ignition EPOS multi-scale laboratories rock and melt physical properties EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC ELECTRICITY > LIGHTNING EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > LIGHTNING EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > GAS EXPLOSIONS/LEAKS EARTH SCIENCE > HUMAN DIMENSIONS > NATURAL HAZARDS > VOLCANIC ERUPTIONS EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > GEOLOGICAL ADVISORIES > VOLCANIC ACTIVITY Springsklee, Christina Christina Springsklee 0000-0001-7830-9794 Ludwig-Maximilians-University Munich, Munich, Germany Manga, Michael Michael Manga 0000-0003-3286-4682 University of California, Berkeley, USA Ludwig-Maximilians-University Munich, Munich, Germany Scheu, Bettina Bettina Scheu 0000-0002-0478-1049 Ludwig-Maximilians-University Munich, Munich, Germany Cimarelli, Corrado Corrado Cimarelli 0000-0002-5707-5930 Ludwig-Maximilians-University Munich, Munich, Germany Springsklee, Christina Ludwig-Maximilians-University Munich, Munich, Germany Scheu, Bettina Ludwig-Maximilians-University Munich, Munich, Germany Manga, Michael University of California, Berkeley, USA Cimarelli, Corrado Ludwig-Maximilians-University Munich, Munich, Germany 2022-03-11 Dataset 10.1029/2022GL100852 10.1007/s004450050149 10.1130/G34802.1 10.1016/j.epsl.2019.02.024 10.1029/2019GL084678 CC BY 4.0 This data publication provides data from 13 experiments performed in 2022 in the Gas-mixing lab at the Ludwig Maximilian University of Munich (Germany). The experiments were conducted to investigate the charging and discharging potential of material collected from a mud volcano from the Salton Sea (GPS-Data 33°12'2.7"N 115°34'41.4"W). The sample material was used in decompression experiments. The material was pressurized with argon gas instead of methane to assure safety conditions while running the experiments in the laboratory. The experimental setup is a modified version first developed by Alidibirov and Dingwell (1996) and further modified by Cimarelli et al. (2014); Gaudin and Cimarelli (2019); Stern et al. (2019) to enable the detection and quantification of discharges caused by the interaction of the discharging particles. The material was ejected from the autoclave into a Faraday cage, that is insulated from the autoclave and discharges going from the jet to the nozzle were recorded by a datalogger. Additionally, the eruption of the decompressed material was recorded by a high-speed camera. In the experiments, the influence of humidity and grain size distribution were tested. The influence of humidity was tested by using the material as wet as collected but also dried and milled and later exposed to varying but controlled humidity conditions. The grain size distribution was tested by mixing the dried and milled mud sample with 10, 50 and 90% of sea sand.

Sampling location from the Niland Mud Volcanoes at the Salton Sea