Geogases in Fault Zones
A special issue of Geosciences (ISSN 2076-3263).
Deadline for manuscript submissions: closed (15 September 2022) | Viewed by 10990
Special Issue Editors
Interests: geochemistry of fluids and gases; noble gases in fault zones and volcanos
Interests: tectonics; geological mapping; spatial analysis; structural geology; sedimentology; geological processes; geographic information system; field geology; soil; constructio
Special Issue Information
Dear Colleagues,
Active fault zones represent unique pathways for fluids from the subsurface and by this give us a direct insight into the composition and flux of volatiles from great depth. Fluids are also thought to play an active role in fault zone processes by e.g. creating enhanced pore pressure, which may lead to fault weakening and subsequent rupture, or by fluid-rock interaction that decreases friction coefficients of fault zone rock. Understanding the spatial distribution and temporal variation of fluids in fault zones is therefore a key element for a better understanding of processes in active fault zones. Abundances and isotopic compositions of geogases such as CO2, H2, CH4, Rn and He are suitable to determine different fluid origins and to characterize the evolution of fluids, fluid flow pathways and fault zone permeability over time and in space. We invite submissions from all areas of geogas research in fault zones, including but not limited to studies on fluid samples from diffusive degassing, from hot springs, bubbling pools and mofettes, and from boreholes, both onshore and offshore.
Dr. Thomas Wiersberg
Dr. Sabina Bigi
Dr. Riikka Kietäväinen
Guest Editors
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Keywords
- Fault weakening
- Fluid-rock interaction
- Fluid overpressure
- Fault permeability
- Mechanochemical gases
- Gas- and Fluidmonitoring
- Seismic cycles
- Earthquake gas precursors
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