TY - JOUR
T1 - A gas-tight shock tube apparatus for laboratory volcanic lightning under varying atmospheric conditions
AU - Springsklee, Christina
AU - Scheu, Bettina
AU - Seifert, Christoph
AU - Manga, Michael
AU - Cimarelli, Corrado
AU - Gaudin, Damian
AU - Trapp, Oliver
AU - Dingwell, Donald B.
N1 - Publisher Copyright:
© The Author(s) 2023. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
PY - 2023
Y1 - 2023
N2 - Explosive volcanic eruptions generate electrical discharges, a phenomenon termed volcanic lightning (VL). However volcanism has been active since Earth’s origin. Thus, investigating VL under different atmospheric conditions is relevant for studies of early atmospheric chemistry, for studying volcanic lightning on other planets, and potential prebiotic reactions. We developed an experimental setup to investigate VL in varying atmospheres. We present the first experiments of laboratory discharges in particle-laden jets in varying atmospheric conditions. The new experimental setup is a mobile fragmentation bomb erupting into a gas-tight particle collector tank. This setup enables the testing of different atmospheric conditions, changes in the carrier gas of the jet, changes in the pressure within the tank, monitoring of the jet behavior, and sampling of the atmosphere together with the decompressed solid materials. We find that the number and magnitude of near-vent electrical discharge events are similar in CO2-CO and air atmospheres.
AB - Explosive volcanic eruptions generate electrical discharges, a phenomenon termed volcanic lightning (VL). However volcanism has been active since Earth’s origin. Thus, investigating VL under different atmospheric conditions is relevant for studies of early atmospheric chemistry, for studying volcanic lightning on other planets, and potential prebiotic reactions. We developed an experimental setup to investigate VL in varying atmospheres. We present the first experiments of laboratory discharges in particle-laden jets in varying atmospheric conditions. The new experimental setup is a mobile fragmentation bomb erupting into a gas-tight particle collector tank. This setup enables the testing of different atmospheric conditions, changes in the carrier gas of the jet, changes in the pressure within the tank, monitoring of the jet behavior, and sampling of the atmosphere together with the decompressed solid materials. We find that the number and magnitude of near-vent electrical discharge events are similar in CO2-CO and air atmospheres.
KW - Early Earth
KW - Experimental discharges
KW - Shock tube apparatus
KW - Volcanic Lightning
UR - https://www.scopus.com/pages/publications/85179790915
U2 - 10.30909/vol.06.02.437445
DO - 10.30909/vol.06.02.437445
M3 - 文章
AN - SCOPUS:85179790915
SN - 2610-3540
VL - 6
SP - 437
EP - 445
JO - Volcanica
JF - Volcanica
IS - 2
ER -