Estimating recognized exploration targets Deposit Basis onSurface Data (Case study: Darrezar Ore)

Category Economic geology & mineral exploration
Group GSI.IR
Location 21th symposium on geosciences
Holding Date 21 May 2008

      This paper describes a method for estimating recognized exploration target on the basis of superficial lithogeochemical data. The Darrehzar porphyry copper deposit is situated in the Uroomieh-Dokhtar magmatic assemblage of central Iran. There is a decimal ranking classification between mineral deposits of the same genetic type of different reserve magnitude. Also linear and aerial sizes of these deposits (principle of geometrical and geochemical similarity) follow a special relationship. Decimal division of mineral deposits and principle of geometrical and geochemical similarity, together with each other, in deposits of the same genetic type, make a relationship between aerial and linear sizes of small, medium and large deposits. This is done by selecting a known deposit with a distinctive economical reserve as a standard with a defined depth. Professor Salavof's method in superficial lithogeochemical estimation is based on the above mentioned idea. On the basis of this method, by using superficial lithogeochemical data, it is possible to determine the potential prospect. And simultaneously we can relatively estimate the probable amount of the reserves of the deposit without wasting large amounts of expense. On this basis, the primary estimation of Darrehzar deposit reserves was done by using superficial lithogeochemical data and was observed that Cu porphyry deposit of Darrehzar is of medium reserve with 340000 ton Cu, and this estimation was very close to the reserve estimation by geostatistical method. This shows the high precision of professor Salavof's method in primary estimation of prospected objects on the basis of aerial lithogeochemical data.

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