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Sandfire Resources America: Black Butte Copper Progress Update
WHITE SULPHUR SPRINGS, Mont., July 25, 2018 (GLOBE NEWSWIRE) -- Sandfire Resources America Inc. (TSX-V:SFR) (OTCQB:SRAFF) (“Sandfire America” or the “Company”)
About this update from Sandfire Resources America Inc.
[{"type":"text","content":" WHITE SULPHUR SPRINGS, Mont., July 25, 2018 (GLOBE NEWSWIRE) -- Sandfire Resources America Inc. (TSX-V:SFR) (OTCQB:SRAFF) (“Sandfire America” or the “Company”) is pleased to provide the following update on activities at the Black Butte Copper underground project in Montana. Metallurgical Drilling and Test Work The 2018 Spring drilling program focused on recovering mineralized core for further metallurgical test work. 16 large-diameter (114 mm diameter) diamond drill holes dispersed throughout the Upper Copper Zone (“UCZ”) of the Johnny Lee deposit provided representative samples for metallurgical testing. These holes also delivered further clarification of the geology within the UCZ. A total of 2,011 kilograms of mineralized core has been prepared for metallurgical testing at Base Metallurgical Laboratories (“BML”) in Kamloops, British Columbia. BML are world-wide recognized experts in base metal froth flotation recovery testing. The results of this test work will support the design of the proposed process flow sheet for the processing plant which is an integral component of the Bankable Feasibility Study, and will allow modelling of recoverable copper within the mineralized zones to optimize scheduling. Two additional diamond drill holes pierced the Lower Copper Zone (“LCZ”) of the Johnny Lee deposit and improved knowledge of this zone. An additional three diamond drill holes were completed outside the known mineralized zones to investigate areas of planned future facilities. See Table 1. below for results from drill intersections through the UCZ and LCZ and associated drill hole locations on Maps 1 and 2. Table 1. Black Butte Copper 2018 Spring Drilling Program Intersections of the Johnny Lee Deposit Hole ID From(m) To(m) Length (m) Cu Co Ag g/t SC18-207 63.24 70.64 7.40 2.21 % 0.14 % 14.3 UCZ SC18-209 83.48 89.66 6.18 1.52 % 0.07 % 7.7 UCZ and 102.29 109.60 7.31 4.38 % 0.13 % 8.0 UCZ SC18-211 118.24 147.42 29.18 2.23 % 0.08 % 14.2 UCZ SC18-212 121.22 135.16 13.94 1.94 % 0.08 % 14.6 UCZ SC18-213 132.73 139.00 6.27 1.57 % 0.08 % 18.3 UCZ and 142.88 146.75 3.87 1.83 % 0.04 % 16.5 UCZ SC18-214 156.70 160.29 3.59 2.50 % 0.11 % 23.2 UCZ SC18-2...