Modeling of Paleo Heat-and-Mass Trasport for Prognosys of Mineral Deposits Using GIS

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 launchin...

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Published inAIP conference proceedings Vol. 1009; no. 1
Main Authors Cherkasov, Sergei, Vishnevskaya, Natalia, Vernadsky Geological State Museum, 11-2 Mokhovaya str., Moscow, 125009, Cassard, Daniel, BRGM, Mineral Resources Division, 3 av. C. Guillemin, BP 36009, 45060 Orleans cedex2, Sterligov, Boris, Arbuzova, Ekaterina
Format Journal Article
LanguageEnglish
Published United States 07.05.2008
Subjects
DEPOSITS
EARTH CRUST
EARTH MANTLE
GEOGRAPHIC INFORMATION SYSTEMS
GEOSCIENCES
GOLD
HEAT TRANSFER
HEATING
MASS TRANSFER
MINERALS
MOLYBDENUM
ORES
ROCKS
RUSSIAN FEDERATION
SEISMOLOGY
SILVER
SIMULATION
TIN
TUNGSTEN
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Summary: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.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2937292