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Bursa PropertyView Property Technical Report (web optimized 1.1MB)Empire has entered into an agreement whereby it can earn a 65% interest in the Bursa copper-molybdenum-gold porphyry property located in western Turkey, within the Turkish sector of the Tethyan Belt.
The Bursa Property is situated 120 km south of Istanbul and is comprised of exploration licenses covering 429 km2, within a trend of demonstrated copper, molybdenum and gold porphyry systems in Bursa and Kutahya provinces. The licenses forming the property cover a portion of a Palaeozoic sedimentary-metamorphic-intrusive complex inlier punctuated by Tertiary intrusions, mainly granodiorite, with associated porphyry-style hydrothermal alteration and mineralisation. The inlier is partially faulted and its northern margin is delineated by the major west-northwest trending Eskişihir Fault. The area is comparable in many ways with other porphyry-bearing areas within the Tethyan Belt. Previous work conducted mostly by Rio Tinto included stream sediment geochemistry, geological mapping, prospecting, soil and rock chip sampling, ground magnetics and an IP/resistivity survey which outlined several areas with porphyry-style Cu-Mo mineralization. Limited drilling by Rio Tinto was concentrated in two of these areas, Karapinar and Gurculer. At Karapinar, drill holes K-1 and K-2, located 200 metres apart, intercepted long intervals of mineralized porphyry including 221 metres (from surface) grading 0.36% copper, 51ppm molybdenum, and 0.1ppm gold, and 54 metres (from 273 m) grading 0.31% copper, 152ppm molybdenum, and 0.07ppm gold in K-1. The porphyry body at Karapinar is open laterally and at depth. At Gurculer, drill hole G-2 intercepted 45 metres grading 0.43% copper, 47ppm molybdenum, and 0.14ppm gold in a porphyry body which is open laterally in all directions.
In 2008, Empire completed an initial drilling program at Bursa consisting of six diamond core holes totaling 1,601 metres. The program was designed to confirm and expand the zone of porphyry copper mineralization indicated in the three earlier holes by Rio Tinto at the Karapinar deposit. Five of the six holes, results of which are summarized below, intercepted thick intervals of copper mineralized porphyry with significant molybdenum and gold over a surface area approximately 400 metres x 400 metres. Drill Hole KDH-006 intersected 99.7 metres averaging 0.50% copper, 0.007% molybdenum and 0.10 grams per tonne gold, from surface. Drill holes KDH-008 and KDH-011, located at the southwest margin of the drill pattern, intercepted zones of supergene enrichment in heavily fractured porphyry containing native copper and other secondary copper minerals from surface to depths up to 100 metres. The enriched section of the Karapinar deposit, containing higher grade intervals up to 25 metres averaging 1.01% copper in KDH-008, is being further evaluated for potential copper recovery by leaching. The mineralized porphyry is open in all directions laterally and at depth
NS = no significant values Additional drilling is currently planned at Bursa to further define and expand the Karapinar porphyry copper deposit and test the Gurculer prospect, where past drilling by Rio Tinto intercepted mineralized porphyry in Hole G-002 containing 0.43% copper, 0.005% molybdenum and 0.14 grams per tonne gold along 45 metres. An initial drill test is also planned at the Oylat occurrence, and at the Demirtepe prospect which is located midway between Karapinar and Gurculer and contains a large area of mineralized skarn with coincident IP and copper-molybdenum-gold geochemical anomalies covering an area 1500 x 1000 metres.
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