On the Genesis of Radon Anomalies in the Tectonic Fault Zones

Peter Miklyaev; Tat&#039;yana Petrova; A. Marennyy; Dmitry Shchitov; Pavel Sidyakin; M. A. Murzabekov

doi:doi:10.37414/2075-1338-2020-100-1-3-15

UDC 50

On the Genesis of Radon Anomalies in the Tectonic Fault Zones

Published в ANRI · Issue 1, 2020 · Pages 3–15 · Rubrics: Scientific article

DOI 10.37414/2075-1338-2020-100-1-3-15

Received: 04.06.2020 Accepted: 05.06.2020 Published: 05.06.2020

Authors

Peter Miklyaev ¹ · Tat'yana Petrova ² · A. Marennyy ³ · Dmitry Shchitov ⁴ · Pavel Sidyakin ⁵ · M. A. Murzabekov ⁶

1 Sergeev Institute of Environmental Geoscience Russian Academy of Sciences (IEG RAS) (Deputy Director)
Moscow, Russian Federation

2 Lomonosov Moscow State University
Russian Federation

3 Federal State Unitary Enterprise Research and Technical Center of Radiation-Chemical Safety and Hygiene
Russian Federation

4 North Caucasian Federal University
Russian Federation

5 North Caucasian Federal University
Russian Federation

6 North Caucasian Federal University

ABSTRACT

As a result of almost three-year observations conducted in the fault zone in the Beshtau magmatic massif area (Caucasian Mineral Waters), anomalous seasonal fluctuations in radon exhalation rate were registered. Seasonal fluctuations are characterized by highs in summer and lows in winter. Summer values reached 23800 mBq/(m2s), while in winter the radon exhalation rate decreased to 40 mBq/(m2s). Radon exhalation rate in the fault zone shows a clear direct correlation with air temperature. The rise of radon levels in spring and fall in autumn are timed to the moments when the temperature of the atmospheric air becomes, respectively, above and below the temperature of the rock massif. It is established that seasonal fluctuations of radon levels are caused by changes in the direction of convective radon transport in the fractured zones. The obtained data suggest that the formation of seasonal radon anomalies in the fault zones is due to the circulation of atmospheric air in permeable zones of the rock massif, which occurs due to the temperature difference between the massif and the atmosphere.

KEYWORDS

radon radon exhalation rate tectonic fault radon seasonal variations convective transport

Information References

Authors:

1. Sergeev Institute of Environmental Geoscience Russian Academy of Sciences (IEG RAS) (Deputy Director)

Moscow, Russian Federation

2. Lomonosov Moscow State University

Russian Federation

3. Federal State Unitary Enterprise Research and Technical Center of Radiation-Chemical Safety and Hygiene

Russian Federation

4. North Caucasian Federal University

Russian Federation

5. North Caucasian Federal University

Russian Federation

6. North Caucasian Federal University

Type:

Article

Pages:

from 3 to 15

Status:

Published

Subject area:

UDC 50

Language:

Russian

Keywords:

radon, radon exhalation rate, tectonic fault, radon seasonal variations, convective transport

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On the Genesis of Radon Anomalies in the Tectonic Fault Zones

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