Separation of Flip and Non-Flip parst of Charge Exchange np->pn at energies Tn = 0.5 - 2.0 GeV

The new Delta-Sigma experimental data on the ratio $R_{dp}$ allowed separating the Flip and Non-Flip parts of the differential cross section of $np\to pn$ charge exchange process at the zero angle by the Dean formula. The PSA solutions for the $np\to np$ elastic scattering are transformed to the $np\to pn$ charge exchange representation using unitary transition, and good agreement is obtain.Comment: 7 pages, 2 figure

Three-dimensional geological-geophysical lithosphere model of the central part of the Karelian craton

On the base of analysis and generalization of total available geological-geophysical information accumulated during forty years passed a complex of geophysical models of the earth’s crust has been obtained, which gives up-to-date idea on deep structure of the central part of the Karelian craton. The plotted seismic 3D density and magnetic models define more exactly our notions on stratification of the earth’s crust, the behavior of geophysical boundaries including the crust-mantle one. Complex interpretation of potential fields based on seismic model of the earth’s crust of the region taking into account petro-physical and geological data, made possible to estimate special features of layered-blocky structure of the region and of structural correlation of sub-longitudinal suture (the fragment of Ladoga-Pechenga zone of multiple activization) in tectonic division and its relation to deep magnetic sources

Deep structure and metallogeny of the North Onega synclinorium (Republic of Karelia, Russia): correlation of geological and seismic data

The goal of the deep structural study of the North Onega synclinorium, based on correlation of geological and seismic data, is to establish the relation of its surface structure and ore deposits to local heterogeneities of the crust and the crust-mantle interface. ECWM sections characterize geospace both statistically (position and number of boundaries, fault zones and mosaicity) and dynamically (stressed and rigid state of contacts and fracturing). Seismic parameters are shown to be related to the geological structure of individual crustal blocks. The deposits have been found to be spatially related to the elevated thickness of the underplating layer, where the main differentia-tion of mantle magmatic melts, which resulted in the separation of fluid and ore phases, probably occurred in the Palaeoproterozoic. It created favorable conditions for the subsequent intrusion of metal-enriched magmatic melts into upper crustal levels