Identification of anomalous radon concentrations due to geodynamic processes by elimination of Rn variations caused by other factors

Finkelstein, Michael; Brenner, S.; Eppelbaum, Lev; Ne’eman, E.

doi:10.1046/j.1365-246x.1998.00502.x

Cited by 31 publications

(16 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Radon contents in soils are dependent from those meteorological parameters (Finkelstein et al, 1998), as well as other gases such as CO 2 (Heinicke et al,1993) or helium (Virk and Walia, 2001). …”

Section: External Forcingmentioning

confidence: 99%

CO2 escapes in the Laacher See region, East Eifel, Germany: Application of natural analogue onshore and offshore geochemical monitoring

Gal

Brach

Braibant

et al. 2011

International Journal of Greenhouse Gas Control

View full text Add to dashboard Cite

Natural analogues studies have received growing interest during preceding years in a CCS perspective. There is a strong willing to deploy robust and reliable technologies to ensure the safety and integrity of CO 2 underground storages. Here we present a dataset acquired in the Eifel volcanic district, using geochemical monitoring methods focusing on both dissolved and gaseous species.Onshore and offshore monitoring (Lake Laacher See) were performed to depict spatial behaviour of CO 2 natural releases. Additional gaseous species, mainly helium and radon, were also monitored to better assess the shapes of gas vents, using methodologies that were learned from hydrological and tectonic applications. Lake water monitoring allowed the characterisation of the water body itself, in terms of lateral heterogeneities, to evaluate the impact of CO 2 deep degassing near the bottom of the lake. The use of a dedicated sensor for monitoring in situ CO 2 partial pressure did not provide more valuable information that was learned from more classical physico-chemical parameters. From those investigations, the usefulness of geochemical monitoring is still demonstrated, but the use of complementary approaches and methods is still needed to get a powerful set of techniques able to warn in case of leakages occurring from depth.

show abstract

Section: External Forcingmentioning

confidence: 99%

CO2 escapes in the Laacher See region, East Eifel, Germany: Application of natural analogue onshore and offshore geochemical monitoring

Gal

Brach

Braibant

et al. 2011

International Journal of Greenhouse Gas Control

View full text Add to dashboard Cite

show abstract

“…The identification of earthquake related signals in hydrogeologic and gasgeochemical time series is further complicated by the influence of the earth's tides, barometric pressure, temperature, rainfall, tectonic processes and other factors (Birchard and Libby, 1980;Sugisaki, 1981;Narasimhan et al, 1984;Igarashi and Wakita 1991;Finkelstein et al, 1998). While some of these influences can be corrected (e.g., Shapiro et al, 1985;Igarashi and Wakita, 1990;Matsumoto, 1992;Finkelstein et al, 1998), others, such as the influence of tectonic activity on the permeability of aquifers or crick patterns of the earth's crust are difficult to correct or estimate.…”

Section: Background -Earthquake Related Signalsmentioning

confidence: 99%

Hydrogeological and Gasgeochemical Earthquake Precursors ? A Review for Application

2005

View full text Add to dashboard Cite

Even if earthquake precursory signals can be identified, how can they be useful? This paper investigates relationships among the attributes of 229 proposed earthquake related gasgeochemical and hydrogeological precursory signals, and applies these results to improve future earthquake prediction strategies. Sub-groups of these reported signals and relationships between sub-groups are established using parameters, including earthquake magnitude, signal duration, precursory time, and epicentral distance to the monitoring site (original studies are used wherever possible to improve data quality). A strong correlation (r ¼ 0.86) between signal duration and precursory time was identified. This suggests a relationship between the investigated precursory signals and tectonic processes related to the referenced earthquakes. Moreover, these signals are categorized into four groups, reflecting differences in monitoring station densities, measurement methods and physical processes related to signal occurrence: (a) radon exhalation from the earth's crust, (b) exhalation of other gases (helium, argon and others), (c) temporal variation in water level or discharge of springs and (d) temporal variation in temperature and dissolved ions in the water of the monitoring sites. In addition, boundary functions are used to separate signal group subsets. Finally, it is shown how these boundary functions can be used in the context of an earthquake prediction strategy by identifying potential minimum magnitudes and maximum epicentral distances from the monitoring site.

show abstract

“…However, in the majority of such radon cases, changes in magnitude in single time-series have been reported, often large changes recorded using integrating detectors, and the majority of radon time-series analysis is reported for single time-series (e.g. Baykut et al, 2010;Bella & Plastino, 1999;Finkelstein et al, 1998). With a single time-series, recorded at a single location, there is no measure of the spatial extent of any anomaly and, to a great extent, only anomalies in magnitude can be investigated.…”

Section: Introductionmentioning

confidence: 99%

Identification of Simultaneous Similar Anomalies in Paired Time-Series

Crockett¹

2012

Earthquake Research and Analysis - Statistical Studies, Observations and Planning

View full text Add to dashboard Cite

Identification of anomalous radon concentrations due to geodynamic processes by elimination of Rn variations caused by other factors

Cited by 31 publications

References 31 publications

CO2 escapes in the Laacher See region, East Eifel, Germany: Application of natural analogue onshore and offshore geochemical monitoring

CO2 escapes in the Laacher See region, East Eifel, Germany: Application of natural analogue onshore and offshore geochemical monitoring

Hydrogeological and Gasgeochemical Earthquake Precursors ? A Review for Application

Identification of Simultaneous Similar Anomalies in Paired Time-Series

Contact Info

Product

Resources

About