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In late January of 2016 (27/01/2016) at Mining Section 14 (Block 7/10) of the Kukisvumchorr flank of the Kirovsk Mine (Khibiny), a violent seismo-dynamic event (lgE ? 8.11) took place to induce significant destructions and deformations of workings at Drill & haulage horizon 4 (4DHH) with an average elevation of +236 meter, 1DHH (+183 m), and possibly at 2DHH (+209 m), which is unavailable for examination. The dislocations, deformations and roof break formation occurred both at the cross-measure (predominantly) and...

The investigation of the fault tectonics in the Kovdor carbonatite intrusion (NW Russia) has resulted in the identification of a new brittle deformations type. It is formed due to the simultaneous turn of fissure planes at discrete angles around two orthogonal guiding lines (axes), where one is represented by a vertical massif symmetry axis (L1), and the other axis (L2) lies horizontally in the fracture plane. Nonetheless, the rotation along the both axes is codirectional, i.e., when moving counterclockwise around...