Abstract
The uranium content of the thermal waters in the Chepino valley was determined in a period of increased seismic activity. Significant changes in the uranium concentration, much above the normal background values were established. In one group of water sources a well-expressed synchrony in the uranium content variations is observed and the maximum is reached about 1.5–2 months after the initial strong seismic shock.
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Kuleff, I., Petrov, P. & Kostadinov, K. Uranium content variations in thermal waters from the West Rhodope cristalline massif during earthquakes in the Chepino Valley (South Bulgaria). J. Radioanal. Chem. 58, 267–274 (1980). https://doi.org/10.1007/BF02533797
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DOI: https://doi.org/10.1007/BF02533797