Correlation of radon anomalies with microseismic events in Kangra and Chamba valleys of N-W Himalaya

Virk, H.S.; Walia, Vivek; Sharma, Anand; Kumar, Naresh; Kumar, Rajiv

doi:10.22201/igeof.00167169p.2000.39.3.327

Cited by 20 publications

(3 citation statements)

References 9 publications

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“…The radon and thoron increases which lasted for about 8 h (Figure 8) agree well with the results of the work [26], where increases of these emanations in soil gas were simultaneously observed in an active fault region before earthquakes with the magnitude M L ≥ 4.5, R < 150 km. They usually appeared 1-20 days before an event and had the least duration of 5-7 h. Impulsive radon spikes in soil-gas before weaker earthquakes (1.7 ≥ M ≥ 4.5) were described in the work [30].…”

Section: Observations At "Karymshina" Sitementioning

confidence: 95%

Joint Anomalies of High-Frequency Geoacoustic Emission and Atmospheric Electric Field by the Ground–Atmosphere Boundary in a Seismically Active Region (Kamchatka)

Marapulets

Rulenko

2019

Atmosphere

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The authors generalize and analyze the investigation results of joint anomalies of high-frequency geoacoustic emission and atmospheric electric field by the ground–atmosphere boundary which were detected by them in Kamchatka. These anomalies are observed as geoacoustic emission increases in kilohertz frequency range and bay-like decreases of atmospheric electric field with the sign change which occur close in time during calm weather conditions. It is the authors’ opinion that the common nature of these anomalies is short-time stretching of the near-surface sedimentary rocks at an observation site during unstable tectono-seismic process. A scheme of the detected anomalies formation has been suggested.

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Section: Observations At "Karymshina" Sitementioning

confidence: 95%

Joint Anomalies of High-Frequency Geoacoustic Emission and Atmospheric Electric Field by the Ground–Atmosphere Boundary in a Seismically Active Region (Kamchatka)

Marapulets

Rulenko

2019

Atmosphere

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“…Long term dynamical pattern of Radon and Thoron Time Series can be explored for many useful purposes. Various studies found in literature has established the important role of radon for forecasting earthquake [2][3][4][5][6][7][8][9][10][11][12]. Some studies, found in literature, indicates that the behavior of soil radon gas is not linear rather nonlinear dynamics associated with the transport of soil radon gas can give better understanding of time series [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Detrended cross correlation analysis (DCCA) of radon, thoron, temperature and pressure time series data

et al. 2020

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Non-linear processes evolving within earth crust and in atmosphere gives complex time series and extracting meaningful physical information from such data is not easy without development and practice of modern computational techniques. Detrended fluctuation analysis (DFA), and detrended cross correlation analysis (DCCA), are used to explore long-range correlations and characterization of correlated data of more than one non-stationary time series. We present results of DFA, and DCCA techniques applied on radon, thoron, temperature and pressure time series. Time series data of each series have been decomposed for each season and seasonal periodicities have been removed. DFA and DCCA techniques have been employed on the deseasonalized data. For all four seasons, DFA scaling exponent ( ) and correlation exponent ( ) have been calculated for radon, thoron, temperature and pressure time series. The results of ‘ ’ and ‘r’, for each of the time series have been used for finding the existence of persistency in processes and investigation of long-range correlations. Largely, these results indicate that the cross-correlation relationship between observed times series for each season is not of simply power-law type. Detrended Cross Correlation Analysis between different time series shows persistent behavior. In order to quantify the level of cross-correlations, we computed the DCCA cross-correlation coefficient

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“…Anomalous radon concentrations, once determined in an active fault zone, could provide information on gas conduits since enrichment processes and upward migration occur [8][9][10]. The so-called Radon Method (RM), as often referred to in radon survey technique, has been applied successfully to detect hidden faults [8] including earthquake and magmatic activity [11][12][13][14][15][16], and volcanic activity [17]. Munadi et al [18] studied the soil gas radon in Indonesia for hydrocarbon exploration localizing hydrocarbon-rich regions that either have or have not been so far exploited.…”

Section: Introductionmentioning

confidence: 99%

SSNTD Techniques in Radon Surveys for Hydrocarbon Exploration and Occurrence of Natural Gas Seeps

Palacios

Sajó-Bohus

Yoshimura

2015

SSP

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Leakages of hydrocarbon reservoirs often increase the radon concentration on the soil surface through distinct pathways; gas migration results in either prolific macro-seeps or micro-seeps. Soil gases, including radon, are recognized as potential tracers in geoscience. The surficial radiometric anomalies over hydrocarbon reservoirs provide the oil community with a complementary survey tool for oil exploration through the use of nuclear track methodology. The Solid State Nuclear Track Detector (SSNTD) is one of the recognized techniques to be employed advantageously in radon surveys for hydrocarbon exploration and occurrence of natural gas seeps. The nuclear track method provides information on the nature of radioactive gas sources, emanations from the soil and their transport pathways. Latent track etching conditions and their analysis are included.

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Correlation of radon anomalies with microseismic events in Kangra and Chamba valleys of N-W Himalaya

Cited by 20 publications

References 9 publications

Joint Anomalies of High-Frequency Geoacoustic Emission and Atmospheric Electric Field by the Ground–Atmosphere Boundary in a Seismically Active Region (Kamchatka)

Joint Anomalies of High-Frequency Geoacoustic Emission and Atmospheric Electric Field by the Ground–Atmosphere Boundary in a Seismically Active Region (Kamchatka)

Detrended cross correlation analysis (DCCA) of radon, thoron, temperature and pressure time series data

SSNTD Techniques in Radon Surveys for Hydrocarbon Exploration and Occurrence of Natural Gas Seeps

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