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Location: 20Km SW from Bosilegrad, Serbia
Hotel Jugoslavija Bulevar Nikole Tesle 3 sprat 120-121Beograd-ZemunSerbia11080
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The Property is situated in the western part of the Tethyan orogenic belt, a complicated zone of tectonic units and past magmatic activity related to collisional plate tectonic processes active from the mid-Paleozoic through to the modern day.The geology of the Property can be roughly split into high metamorphic-grade rocks in the north and east, and low metamorphic-grade rocks in the south and west. Numerous older intrusions, represented by orthogneiss, cut both metamorphic sequences but are limited in the area of the Property to the higher metamorphic grade rocks. Relatively minor areas of sediments and volcanoclastic sequences are preserved in the Property; these are deposited unconformably on the lower-grade metamorphic sequence. The metamorphic and sedimentary sequences are cut by porphyritic dykes and sills and, in the western part of the Property, by volcanic plugs. Quaternary deposits occur in the Property and include unconsolidated talus on the higher ground and alluvial sediments along valley floors.The Property hosts three identifiable mineralized zones at the Barje Deposit, the Liska Prospect and the Karamanica Prospect. The Barje Deposit is the most advanced mineralized zone within the Property and is the primary subject of the 2021 Preliminary Economic Assessment. The Barje DepositThe Barje Deposit is located on an east-west trending ridge at elevations ranging from approximately 1100 m in the east to 1300 m in the west. Historical prospecting located two main areas of outcropping gold and base metal mineralization at Barje. Medgold’s drilling has confirmed the continuation of mineralization between and to the west of the discovery outcrops in an area of 700 m east-west by 250 m north-south (Medgold Resources Corp, 2019a). Said mineralization is controlled by a hydrothermal breccia, of up to 20 m in thickness, following a structure inclined approximately 18° towards the south. This structure cuts a fault-bounded sequence of schist and conglomerate above a dacite sill intruded along a detachment surface at the top of the Crnook basement. While mineralization is strongest in the hydrothermal breccia, a halo of lower-grade mineralization is also found in the overlying rocks. The hydrothermal breccia comprises transported clasts of the local wall-rocks cemented by a matrix of quartz ± calcite/siderite and sulphide minerals, including pyrite, arsenopyrite, sphalerite, galena and more rarely chalcopyrite and tennantite. Grains of electrum up to around 50 µm in size and containing approximately 60% Au and 40% Ag, have been observed microscopically within the higher-grade mineralization.The Liska ProspectThe Liska Prospect is situated 1500 m southwest of the Barje Deposit at an elevation of approximately 900 m. During 2019, Medgold carried out drilling. The combined area of mineralization reported from State drilling and Medgold’s drilling is approximately 680 m north-south by up to 270 m east-west. The mineralization is associated with a flat-lying faulted boundary between overlying conglomerate units and underlying schist units; these appear to be similar lithologies to the conglomerates and the lower schist units, respectively, at Barje. Mineralization occurs at and below the boundary between the conglomerates and the schist with thicknesses of up to approximately 50 m. The zone outcrops at surface in the south of the Prospect and continues to depth under higher topography to the north.The current spacing of Medgold’s drill holes does not allow geostatistical calculation of continuity within the mineralization; estimates using Medgold and historical State data suggest continuity in the order of 100 m to greater than 250 m north-south and 50 metres to 100 metres east-west. Mineralization consists of quartz-pyrite veins of up to approximately 4 centimetres in width containing sphalerite and galena. The Karamanica ProspectThe Karamanica Prospect covers numerous minor occurrences of gossan, alteration and vein related mineralization recognized during exploration by Yugoslav State agencies between the 1950s and 1980s. The State exploration work led to the discovery of the Podvirovi occurrence. Rock sampling by Medgold has confirmed the presence of hydrothermal alteration and veining with elevated levels of gold and base-metals at multiple locations within the Prospect but with no significant continuity between elevated values. Scout drilling by Medgold during 2019 intersected only minor lead-zinc mineralization in quartz-carbonate veins associated with a fault zone and the margin of a porphyritic intrusion.
