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Phosphates are one of strategic mineral resources that provide the food safety of any country. The specific feature of the raw-material base in the Kola region is the endogenic type of apatite deposits. All industrial reserves and resources of apatite-nepheline ores (ANO) are confined to PZ alkaline-ultrabasic carbonatite complexes and, mainly, to the Khibiny massif (KM). 15 unique apatite-nepheline deposits and occurrences are located here. Some of them are the world-class scale. ANO of the KM are highly eco-frie...

It is known that the solar-moon tides (SMT) influence often serves as a trigger releasing seismic energy in a prepared area of the earth's crust. The regular increase in the number of earthquakes during the syzygy and perigee was empirically determined at the end of the 19th century by A. Perret [1]. The tidal force reaches its highest value when the perigee coincides with syzygy, which occurs once a year. The such pattern is observed for rock bursts (RB) also. However, it should be noted that the most tide influe...