Summary Volcano-sedimentary formation of Porave - Miliska area is constituted by high titanium basalts and sedimentary intercalations represented of argillaceous and argillaceous – radialarite. This formation is characterized by a very complicated structural construction. The area is highly saturated with copper-pyrite sulfur mineralization and up to now 42 sulphide ore showings are found. Three types of mineralization have been identified: (VMS) volcano massive sulphide ore type with almost sharp contacts with the surrounding rocks, quartz-sulphide mineralization (or vein type) with sharp contacts with the surrounding rocks and hydrothermal-metasomatic mineralization characterized by large mineralized zones within which are meet the massive lenses. All field-spreading of volcano-sedimentary formation is covered with complex geological-geophysical works with 50x20 m grid. These works have identified a number of IP anomalies related to known ore bodies and in sectors with no ore showings. Measurements of IP with Dinpol apparatus provide clear differences between the ore body and surrounding rocks (Porave deposit case). The method of body charged also gives very good results (case of Geraj ore deposit). Key words: volcano-sedimentary formation, copper ore, IP measurements.


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