Water of Eastern Taiwan mud volcanoes: part II—trace element distribution of Lei-Gong-Huo mud volcano

Abstract Mud volcano (MV) is one of the most important channels for deep seated volatile materials to migrate to Earth’s surface in the sedimentary basins at subduction zones. It plays a meaningful role of elemental budget in hydrosphere. Waters of MV fluid emitted from 46 mud pools in MV Lei-Gong-H...

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Main Author: Hung-Chun Chao
Format: Article
Language:English
Published: Springer 2023-01-01
Series:Terrestrial, Atmospheric and Oceanic Sciences
Subjects:
Online Access:https://doi.org/10.1007/s44195-022-00033-z
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author Hung-Chun Chao
author_facet Hung-Chun Chao
author_sort Hung-Chun Chao
collection DOAJ
description Abstract Mud volcano (MV) is one of the most important channels for deep seated volatile materials to migrate to Earth’s surface in the sedimentary basins at subduction zones. It plays a meaningful role of elemental budget in hydrosphere. Waters of MV fluid emitted from 46 mud pools in MV Lei-Gong-Huo (LGH) in eastern Taiwan were sampled from October 2015 to July 2016 monthly. Previous research indicates that the chemical characteristic of fluid expelled by MV LGH is dominated by two-end-member mixing of water–rock interaction with sedimentary and igneous rocks (Chao et al., Front Earth Sci 9:750436, 2022). Trace elements of 165 mud pool samples, including Al, Co, Ni, Cu, Zn, As, Br, Rb, Mo, Sb, I, Cs, Pb and U, were measured. The results show that waters of MV LGH reveal similar chemical characteristics to low-temperature ridge-flank hydrothermal spring and marine pore water in anoxic conditions coupled with the addition of clay dehydration. Principle component analysis (PCA) with previous published variables (Chao et al., Front Earth Sci 9:750436, 2022) indicates the important factors are the source of water–rock interaction, the surface ion exchange, the redox condition of mud pool, and the evaporation. In summary, the concentration of trace elements in the waters expelled by MV LGH is in the range of nM to pM. Their behaviors are dominated by secondary factors during and after migration such as surface ion exchange in response to changes in pressure and temperature, redox state of the mud pool, and evaporation. Trace elements in MV water are not suitable for fluid source or provenance studies.
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spelling doaj.art-1ff035c07b044d88baae925d3688efa62023-01-15T12:13:56ZengSpringerTerrestrial, Atmospheric and Oceanic Sciences1017-08392311-76802023-01-0134111310.1007/s44195-022-00033-zWater of Eastern Taiwan mud volcanoes: part II—trace element distribution of Lei-Gong-Huo mud volcanoHung-Chun Chao0Department of Earth and Environmental Sciences, National Chung Cheng UniversityAbstract Mud volcano (MV) is one of the most important channels for deep seated volatile materials to migrate to Earth’s surface in the sedimentary basins at subduction zones. It plays a meaningful role of elemental budget in hydrosphere. Waters of MV fluid emitted from 46 mud pools in MV Lei-Gong-Huo (LGH) in eastern Taiwan were sampled from October 2015 to July 2016 monthly. Previous research indicates that the chemical characteristic of fluid expelled by MV LGH is dominated by two-end-member mixing of water–rock interaction with sedimentary and igneous rocks (Chao et al., Front Earth Sci 9:750436, 2022). Trace elements of 165 mud pool samples, including Al, Co, Ni, Cu, Zn, As, Br, Rb, Mo, Sb, I, Cs, Pb and U, were measured. The results show that waters of MV LGH reveal similar chemical characteristics to low-temperature ridge-flank hydrothermal spring and marine pore water in anoxic conditions coupled with the addition of clay dehydration. Principle component analysis (PCA) with previous published variables (Chao et al., Front Earth Sci 9:750436, 2022) indicates the important factors are the source of water–rock interaction, the surface ion exchange, the redox condition of mud pool, and the evaporation. In summary, the concentration of trace elements in the waters expelled by MV LGH is in the range of nM to pM. Their behaviors are dominated by secondary factors during and after migration such as surface ion exchange in response to changes in pressure and temperature, redox state of the mud pool, and evaporation. Trace elements in MV water are not suitable for fluid source or provenance studies.https://doi.org/10.1007/s44195-022-00033-zMud volcanoTrace elementWater–rock interactionPrinciple component analysis
spellingShingle Hung-Chun Chao
Water of Eastern Taiwan mud volcanoes: part II—trace element distribution of Lei-Gong-Huo mud volcano
Terrestrial, Atmospheric and Oceanic Sciences
Mud volcano
Trace element
Water–rock interaction
Principle component analysis
title Water of Eastern Taiwan mud volcanoes: part II—trace element distribution of Lei-Gong-Huo mud volcano
title_full Water of Eastern Taiwan mud volcanoes: part II—trace element distribution of Lei-Gong-Huo mud volcano
title_fullStr Water of Eastern Taiwan mud volcanoes: part II—trace element distribution of Lei-Gong-Huo mud volcano
title_full_unstemmed Water of Eastern Taiwan mud volcanoes: part II—trace element distribution of Lei-Gong-Huo mud volcano
title_short Water of Eastern Taiwan mud volcanoes: part II—trace element distribution of Lei-Gong-Huo mud volcano
title_sort water of eastern taiwan mud volcanoes part ii trace element distribution of lei gong huo mud volcano
topic Mud volcano
Trace element
Water–rock interaction
Principle component analysis
url https://doi.org/10.1007/s44195-022-00033-z
work_keys_str_mv AT hungchunchao waterofeasterntaiwanmudvolcanoespartiitraceelementdistributionofleigonghuomudvolcano