The mineral deposit type at Ilovica is “Alkaline Copper-Gold Porphyry”. The deposit has characteristics which are typical for this deposit type. The mineralisation is spatially, temporally and genetically associated with hydrothermal alteration of the intrusive bodies and host rocks.
As is typical of this deposit type, stockworks, veinlets and disseminations of pyrite, chalcopyrite, bornite and magnetite occur in large zones of mineralisation in and adjoining porphyritic intrusions of diorite composition.
Subsequent supergene leaching/enrichment and advanced argillic alteration have overprinted the typical hydrothermal alteration and mineralisation pattern in the upper portion of the deposit.
Ilovica is a porphyry copper-gold deposit, located in a northwest-southeast striking Cenozoic magmatic arc, that covers large areas of Central Romania, Serbia, Macedonia, Southern Bulgaria, Northern Greece and Eastern Turkey.
The Ilovica porphyry system is approximately 1.5 km in diameter and is associated with a poorly exposed dacite-granodiorite plug, emplaced along the north-eastern border of the northwest-southeast elongate Strumica graben. The exact location of the deposit is controlled by major north-south cross cutting faults and minor northwest-southeast faulting, parallel to the faulted border of the graben.
The Strumica graben is a typical post-collision extension structure, approximately 30 km by 10 km in size, and up ........
