The peculiarities of cross-correlation between two secondary precursors – Radon and magnetic field variations, induced by stress transfer changes

Rusov, V. D.; Maksymchuk, V. Yu.; Ilić, R.; Pavlovych, V. M.; Jačimović, Radojko; Бахмутов, В. Г.; Kakaev, O. A.; Vaschenko, V. M.; Skvarč, J.; Hanžič, L.; Vaupotič, Janja; Beglaryan, M. E.; Linnik, E. P.; Kosenko, S. I.; Saranuk, D. N.; Smolyar, V. P.; Gudyma, A. A.

doi:10.1016/j.radmeas.2014.03.011

Cited by 5 publications

(4 citation statements)

References 42 publications

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“…The authors conclude that there is a submedian tectonic fault near the Ukrainian Antarctic Station "Academic Vernadsky" and active tectonic processes occur within its boundaries. Rusov et al (2014) based on magnetic field strength and radon concentrations measured along a tectonomagnetic profile in the surroundings of the Ukrainian Antarctic Station "Academic Vernadsky" showed a positive correlation between the annual surface radon concentration and annual changes of magnetic field relative to a base epoch GNSS stations, and also the good coincidence with theoretical calculation. Such an approach permits to reveal the deformation accumulation in this region which will probably discharge by the slow relaxation mechanisms.…”

Section: Introductionmentioning

confidence: 60%

Recent local geodynamic processes in the Penola Strait_Lemaire Channel fault area (West Antarctica)

Savchyn¹

2021

Acta Geodynamica Et Geomaterialia

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We present the crustal deformation field in the Penola Strait – Lemaire Channel fault area (West Antarctica), based on the analysis of the 5 seasonal cycles of static GNSS survey. This 5 GNSS campaigns were conducted with approximately a 16-year interval from 2003 to 2019. The analyses indicate that average linear velocities of horizontal movements are multidirectional but no larger than 1 – 2 mm/yr. Average linear velocities of vertical movements are no larger than ±3 mm/yr. In the present work scheme of vertical and horizontal movements has been drawn out. The obtained results correlate well with the movements of the surrounding GNSS stations. Based on the analysis of spatial distribution of the Earth’s surface dilatation velocity the zones of extreme compression and expansion values were revealed. The analyses of spatial distribution of the Earth’s surface total shear velocity indicate that the studied region is horizontally heterogeneous. Based on the analysis of obtained results, a new kinematic model of fault area was developed. The possibility of using static GNSS survey to study recent local geodynamic processes in Antarctica has been demonstrated.

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Section: Introductionmentioning

confidence: 60%

Recent local geodynamic processes in the Penola Strait_Lemaire Channel fault area (West Antarctica)

Savchyn¹

2021

Acta Geodynamica Et Geomaterialia

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“…The possible connection of the tectonomagnetic anomalies with the changes in tectonic stresses is supported by the correlation of the magnetic field changes and the surface concentration of radon in the Vernadsky station region (Rusov et al, 2014).To discover the nature of the tectonomagnetic anomalies on the Antarctic polygon, we shall analyze the possible contribution of the secular variation of the magnetic field and their connection with the region's seismicity. Knowledge of the spatial structure of the secular trend in the region of the tectonomagnetic polygon is very important since the variations can contribute to the tectonomagnetic anomalies.…”

Section: Discussionmentioning

confidence: 98%

Results of long-term tectonomagnetic research in the Akademik Vernadsky station region, the West Coast of the Antarctic Peninsula

Maksymchuk

Chobotok

Kuderavets

et al. 2022

UAJ

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The study aims to analyze the results of long-term tectonomagnetic observations on the Antarctic tectonomagnetic polygon in the region of the Akademik Vernadsky station to investigate the current geodynamics at the West Coast of the Antarctic Peninsula. The data (1998—2020) were collected as regular discrete geomagnetic measurements. They were used to study the temporal changes of the local magnetic field between the observation epochs and tectonomagnetic anomalies. We create a temporal series of the changes in the local magnetic field for every point of the observation network on the polygon and provide the map of tectonomagnetic anomalies over different observation periods. The tectonomagnetic anomalies of 2.0—2.8 nT · year–1 were found in the Argentine Islands region. The anomalies’ spatial structure agrees with elements of the tectonic structure of the Earth crust. We studied the spatial-temporal connection of the tectonomagnetic anomalies with the region seismicity and estimated the values of tectonic stresses in the lithosphere within the piezomagnetic mechanism. The spatial-temporal structure of tectonomagnetic anomalies in the region shows the response of the geological environment to the change in the tectonic stresses in the local crust. Based on the theoretical calculations and other geological and geophysical data, we conclude that a piezomagnetic effect causes the anomalies under the action of stretching tectonic stresses (~1 bar · year–1) in the sub-latitudinal direction. Given the urgency of discovering the seismotectonic processes and current regional dynamics, the tectonomagnetic observations on the polygon should be continued as a yearly monitoring program, including other methods of geophysics and geodesy.

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“…It must be mentioned that comparing our findings to other studies is difficult, as the published literature on the subject is quite scant. Rusov et al [ 8 ], for instance, observed that the magnetism diminished in the time interval of four years while the radon activity concentration increased.…”

Section: Discussionmentioning

confidence: 99%

“…It is, however, a correlation through the soil matrix magnetism (minerals, organic matter, air, and water). Rusov et al [ 8 ] determined a relationship between the radon concentration and temporary changes in the Earth’s magnetic field resulting from plate tectonic movements or related activities. Temporal variations in radon concentration correlated to groundwater flow were determined by Perrier et al [ 9 ], a phenomenon that could explain the formation of radioactive anomalies or variations of soil gas radon concentrations over different geological formations of several kBq/m 3 .…”

Section: Introductionmentioning

confidence: 99%

Radon at Kilbourne Hole Maar and Magnetic and Gravimetric Correlations

Luna-Lucero

Sajó-Bohus

López

2023

IJERPH

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Soil radon gas concentrations ranging from the detection limit up to 15 kBq/m3 were measured for the first time at the Kilbourne Hole maar in two selected regions: the first region was located on the western volcanic field, and the second was located inside the crater, near the southern border. Radioactive anomalies were found in association with the pyroclastic deposit, and the corresponding heat map provided information on the radon diffusion direction by the CRn gradient. It was observed for the first time that the anomalies found at the southern border are associated with a known geological fault, in opposition to what was found on the western border. The results provided by a radon activity concentration gradient of above (8 kBq/m3)/15 m suggest the existence of a fault that has not been detected yet. The observation that high levels near a dormant fault are related to tectonically enhanced radon was confirmed. The activity concentrations of Rn-gas were contrasted to existing gravimetric and magnetic data to provide measuring information on radon emanation, suggesting the existence of a high, naturally occurring radioactivity in the soil in the first place or an increased porosity of the locally defined lithology. The results indicated a higher correlation of 85% with magnetic anomalies. This is in opposition to the gravimetric data, which was only 30%. This study is a contribution to the characterization maar of volcanic geology by the soil radon activity index, which was designated as “low” in this case.

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The peculiarities of cross-correlation between two secondary precursors – Radon and magnetic field variations, induced by stress transfer changes

Cited by 5 publications

References 42 publications

Recent local geodynamic processes in the Penola Strait_Lemaire Channel fault area (West Antarctica)

Recent local geodynamic processes in the Penola Strait_Lemaire Channel fault area (West Antarctica)

Results of long-term tectonomagnetic research in the Akademik Vernadsky station region, the West Coast of the Antarctic Peninsula

Radon at Kilbourne Hole Maar and Magnetic and Gravimetric Correlations

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