STRUCTURES OF THE LOWER-YANA OVERTHRUST AND AU-SB-HG MINERALIZATION (NORTHEAST YAKUTIA)

New data on the study of deformation structures of the Lower-Yana overthrust and the eastern flank of the Lower-Yana Au-Sb-Hg metallogenic zone are presented. The overthrust is manifested by melanged, shattered, dislensed debris of local rocks with chaotic blocks and rounded boulders of xenogenic carbonate formations with traces of large-scale movements. Heterochronous fold-thrust, strike slip and normal faults parageneses related with Mesozoic-Cenozoic regional tectonic processes are described. The Lower-Yana overthrust and poorly permeable Jurassic clastic rocks of allochthon served as a screen for trans-crustal Au-Sb-Hg ore-forming fluids ascending along the Yana fault zone.