Architecture and temporal variations of a terrestrial CO2 degassing site using electric resistivity tomography and selfpotential
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F17%3A00475058" target="_blank" >RIV/67985530:_____/17:00475058 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s00531-017-1470-0" target="_blank" >http://dx.doi.org/10.1007/s00531-017-1470-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00531-017-1470-0" target="_blank" >10.1007/s00531-017-1470-0</a>
Alternative languages
Result language
angličtina
Original language name
Architecture and temporal variations of a terrestrial CO2 degassing site using electric resistivity tomography and selfpotential
Original language description
The Hartousov mofette field in NW Bohemia, Czech Republic, is characterized by strong CO2 degassing from the Lithospheric Mantle. In a test survey using electrical resistivity tomography, we observed changes over time in the subsurface structure beneath heavily CO2 degassing spots to depths of about 40 m and compared them to CO2 gas flux and soil gas mappings from previous studies. Changes in the electrical resistivity were measured between September 2012 and October 2013 at irregular intervals and highlight large variations in the resistivity distribution where the CO2 degassing was strongest (56 x 103 g m(-2) day(-1)), indicating a fluid-induced change of properties of the underlying clayey sediments. Positive and negative anomalies in the electric self-potential parallel to the ERTs can be found where CO2 degassing occurs which indicates varying ascent or descent of fluids within these spots. Some degassing spots seem not to be actively degassing continuously over time, which can also be observed by other studies in the same area. We suggest that future gas mappings are accompanied by methods that observe the state of fluid systems at subsurface over time, e.g. electric resistivity tomography and self potential.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10507 - Volcanology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Earth Sciences
ISSN
1437-3254
e-ISSN
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Volume of the periodical
106
Issue of the periodical within the volume
8
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
2915-2926
UT code for WoS article
000412896800016
EID of the result in the Scopus database
2-s2.0-85016045453