{"title":"Experimental verification for self-organization process on the spatial distribution and edifice size of rootless cone","authors":"Rina Noguchi, Wataru Nakagawa","doi":"10.1016/j.jvolgeores.2024.108221","DOIUrl":null,"url":null,"abstract":"<div><div>We discuss the decision factor of the spatial distribution of rootless eruption, continuous explosions caused by interactions between lava and water. Signs of these eruptions are found on both Earth and Mars, and their spatial distribution is believed to be self-organized due to the scramble for available volatile substances, such as water. An analog experiment of rootless eruptions was conducted to verify this self-organization process using syrup and baking soda. This study focused on “failed conduits” disturbed by surrounding conduits and could not form stable paths to the surface. Through the experiments, we found that the self-organization process is driven by the competition for both available volatile substances and conduits. Candidates of such failed conduits could be found in nature where high-temperature lava and shallow groundwater were met. The role of the conduit-merge effect is deemed important in determining the spatial distribution pattern and edifice size of rootless cones on Earth and other planetary bodies.</div></div>","PeriodicalId":54753,"journal":{"name":"Journal of Volcanology and Geothermal Research","volume":"458 ","pages":"Article 108221"},"PeriodicalIF":2.4000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Volcanology and Geothermal Research","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0377027324002142","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
We discuss the decision factor of the spatial distribution of rootless eruption, continuous explosions caused by interactions between lava and water. Signs of these eruptions are found on both Earth and Mars, and their spatial distribution is believed to be self-organized due to the scramble for available volatile substances, such as water. An analog experiment of rootless eruptions was conducted to verify this self-organization process using syrup and baking soda. This study focused on “failed conduits” disturbed by surrounding conduits and could not form stable paths to the surface. Through the experiments, we found that the self-organization process is driven by the competition for both available volatile substances and conduits. Candidates of such failed conduits could be found in nature where high-temperature lava and shallow groundwater were met. The role of the conduit-merge effect is deemed important in determining the spatial distribution pattern and edifice size of rootless cones on Earth and other planetary bodies.
期刊介绍:
An international research journal with focus on volcanic and geothermal processes and their impact on the environment and society.
Submission of papers covering the following aspects of volcanology and geothermal research are encouraged:
(1) Geological aspects of volcanic systems: volcano stratigraphy, structure and tectonic influence; eruptive history; evolution of volcanic landforms; eruption style and progress; dispersal patterns of lava and ash; analysis of real-time eruption observations.
(2) Geochemical and petrological aspects of volcanic rocks: magma genesis and evolution; crystallization; volatile compositions, solubility, and degassing; volcanic petrography and textural analysis.
(3) Hydrology, geochemistry and measurement of volcanic and hydrothermal fluids: volcanic gas emissions; fumaroles and springs; crater lakes; hydrothermal mineralization.
(4) Geophysical aspects of volcanic systems: physical properties of volcanic rocks and magmas; heat flow studies; volcano seismology, geodesy and remote sensing.
(5) Computational modeling and experimental simulation of magmatic and hydrothermal processes: eruption dynamics; magma transport and storage; plume dynamics and ash dispersal; lava flow dynamics; hydrothermal fluid flow; thermodynamics of aqueous fluids and melts.
(6) Volcano hazard and risk research: hazard zonation methodology, development of forecasting tools; assessment techniques for vulnerability and impact.