Abstract
The contents of mobile ore elements Pb, Zn, Cu, Mo, Ag, Sn, As, Tl, Hg, as well as B and Fe group elements are determined and their distribution is studied in a loose cover and waters at the surface of the largest regional faults of the Baikal Rift Zone: Tunka, Barguzin, marginal suture of the Siberian Platform, and in the near-fault Kucheger thermal field. The amounts of O2, CO2, CO, CH4, H2S, SO2, Rn, and Rn-related ionization of ground air are measured in soil gases at the faults. Geochemical associations typical of faults were identified. The geochemical fluxes of their major elements and natural toxic elements As, Tl, and Hg on the subsurface geochemical barriers are calculated. Migration of ore elements is a function of near-fault heat flows, the surface values of which were estimated from distant Earth’s sounding data with establishing the dominant of convective component.
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