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Providing coverage of Alaska and Northwest Canada's mineral industry
December 2017

Vol. 22, No. 50 Week of December 10, 2017

Mining News: Rockhaven discovers Klaza expansion zone

Rockhaven Resources Ltd. Dec. 4 announced the discovery of several new mineralized structures at it Klaza gold-silver project in southern Yukon. These discoveries include a series of new mineralized veins identified with a single drill fence consisting of five holes across an area north of the current resource area where no previous drilling or trenching had been carried out. This drilling targeted a number of linear magnetic and electro-magnetic anomalies, similar to those marking known mineralized zones. The southern three holes cut a series of semi-massive sulfide veins that are associated with porphyry dykes. These veins and dykes closely resemble those within the inferred resource. Highlighted intercepts from this discovery drilling include 10.1 meters averaging 1.16 grams per metric ton gold and 18.7 g/t silver; 0.46 meters of 9.43 g/t gold and 180 g/t silver; and 0.94 meters of 5.63 g/t gold and 91.4 g/t silver. Rockhaven said it will test these newly identified structures along strike to the northwest; within the Western Fault Block, which hosts the high-grade Western BRX and Western Klaza zones; and to the southeast, where soil sampling has identified strong gold-in-soil anomalies. "We are excited by the discovery of multiple mineralized structures north of the Klaza Zone and consider these structures high priority targets for diamond drilling in 2018,” said Rockhaven CEO Matt Turner. "These new structures are located within 500 meters of the currently envisioned open pit and are similar in character to the known zones that host the current inferred resource of 1,360,000 gold ounces." Rockhaven said trenching and prospecting samples collected at the Victoria Target, southeast of the newly discovered veins, returned a chip sample grading 4.95 g/t gold and 135 g/t silver over 1.5 meters; and rock samples with peak values of 35.3 g/t gold and 1,145 g/t silver. Additionally, the company reported the discovery of Rusk, a target about 5,000 meters south of the current resource area where rock sampling returned values as high as 2.82 g/t gold and 2,070 g/t silver along northwest trending linear structures identified there. According to a 2016 calculation, Klaza hosts 9.42 million metric tons of inferred resource grading 4.48 g/t (1.36 million ounces) gold, 89.02 g/t (26.96 million oz) silver, 0.75 percent (155.4 million pounds) lead and 0.95 percent (197.8 million lb) zinc. Rockhaven’s 2017 exploration program at Klaza included 15,922 meters of drilling in 96 holes focused primarily on defining and expanding this near-surface resource. This year’s program also included trenching, soil sampling and ground geophysical surveys designed to evaluate prospective areas outside of the known mineral resource areas. The program successfully identified seven new mineralized zones and a number of geochemical and geophysical anomalies that are potential targets for follow-up drilling in 2018. –SHANE LASLEY






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