classification of ore deposits

tectonic classification of ore deposits 


Deposit type
sub-classes
I. Deposit at oceanic ridges (divergent plate margins) volcanogenic massive sulfide deposits (Cu Zn)
Sedimentary exhalative deposits (Zn, Cu, Pb, Au and Ag). e.g. Red Sea
Mn nodules (Mn, Ni, Cu, Co …)
Cr, PGE, asbestos in ultramafic rocks
II. Deposits at convergent plate margins Porphyry Cu-Mo deposits
Other base metal deposits (Cu, Pb, Zn, Mo)
Precious metals (Pt, Au, Ag)
Pb–Zn–Ag veins and contact metasomatic deposits
Other metals (Sn, W, Sb, Hg)
III. Deposits in cratonic rift systems Deposits of Sn, fluorite, barite in granites
Evaporites in rift basins
Carbonatites containing Nb, P, REE, U, Th and other rare elements
IV. Deposits in intracontinental settingsNi and PGE in layered intrusions
Ti in anorthosites
Iron-oxide Cu-Au deposits
Pb–Zn–Ag deposits in limestones and clastic sediments
Sedimentary Cu deposits
Ni, Al laterites
Diamonds in kimberlites

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