Modeling of Paleo Heat-and-Mass Trasport for Prognosys of Mineral Deposts Using GIS
Sergei Cherkasov, Daniel Cassard, Boris Sterligov, Ekaterina Arbuzova, N. А. Vishnevskaya, Klaudia Oleschko, Sergei Cherkasov, José Luís Palacio Prieto, Vianey Torres Argüelles, Claudia I. Gaona Salado, Ana Gabriela Castañeda Miranda, Sergio Aurelio Zamora Castro · AIP conference proceedings · 2008
The heat‐and‐mass flow from the mantle to the surface can be characterized by the three basic models. The first one represents just a convective heating of the crust by the hot mantle. Two other kinds of the heat‐and‐mass flow system are rather anomalous and sometimes serve as an engine for launching ore‐forming processes. The second model describes a pipe‐like conductive heat‐and‐flow system reasoning appearance of mafic‐ultramafic intrusions coming to the surface directly from the upper mantle. The third model corresponds with a complicated convective‐conductive process involving melting of crustal rocks, and forming magmatic chambers inside the crust.Analysis of gravimetric and seismic data using geographic informational systems allows us to locate elements of the anomalous heat‐and‐flow systems. Some of the elements (their projection on the surface) correlate with position of the known deposits of gold, silver, tungsten, tin, sometimes—molybdenum and base metals. The results of studies conducted by the Russian‐French Metallogenic Laboratory in the frames of crystalline shields of Russia demonstrate location of 87% of the known gold‐bearing deposits inside the zones defined by such analysis.