Copper Fox Updates Sombrero Butte Copper Project in Arizona
posted on
Oct 25, 2016 10:38AM
CUU own 25% Schaft Creek: proven/probable min. reserves/940.8m tonnes = 0.27% copper, 0.19 g/t gold, 0.018% moly and 1.72 g/t silver containing: 5.6b lbs copper, 5.8m ounces gold, 363.5m lbs moly and 51.7m ounces silver; (Recoverable CuEq 0.46%)
VANCOUVER, BRITISH COLUMBIA--(Marketwired - Oct 25, 2016) - Copper Fox Metals Inc. ("Copper Fox" or the "Company") (TSX VENTURE:CUU)(OTC PINK:CPFXF) and its wholly owned subsidiary, Desert Fox Copper Inc. ("Desert Fox"), are pleased to provide the results of the recently completed study on the chemistry of six hydrothermal breccia pipes that occur within an area that measures 300 meters ("m") by 400m located at the north end of the Sombrero Butte project. The hydrothermal breccia pipes located in the center of the property were not included in this study due to the lack of geochemical data.
Elmer B. Stewart, President and CEO of Copper Fox, stated, "This study supports the presence of a buried porphyry system and shows that the breccia pipes acted as a pathway for a complex multi-phase introduction of metals and mineralized granodiorite boulders. In addition to the pipes that contain significant concentrations of copper-molybdenum-gold-silver mineralization, the bottom 500m interval of diamond drill hole ("DDH") SB-23 is interpreted to have intersected the outer portion of a porphyry system commonly referred to as a 'pyrite shell'. The fact that the 2015 Titan-24 DCIP survey ("Titan-24") mapped the mineralized breccia pipes has advanced our interpretation of other chargeability anomalies within the property."
The study focused on the trace elements (molybdenum-gold-silver-arsenic-antimony-tungsten) associated with a porphyry copper system. The analytical results for copper were previously announced by Bell Copper Corporation ("Bell"). The analytical results for molybdenum-gold-silver and associated elements have not been previously announced.
Highlights:
Background:
In, 2006-2008 Bell drill tested a number of breccia pipes located at the north end of the Sombrero Butte property. The drill hole information and analytical results for copper were released in a series of news releases made by Bell from November 9, 2006 to February 28, 2008 (www.sedar.com). The Bell news releases made no mention of either the molybdenum-gold-silver concentrations or the associated elements within breccia pipes.
The Bell drilling programs were carried out under the supervision of Timothy Marsh, P.E. PhD. Bell conducted a quality assurance and quality control ("QA/QC") program on the drill core samples by inserting field blanks, duplicates and certified standards into the sample stream submitted to the laboratory. The samples remained in the possession of Bell employees at the project site and then hand-delivered by the geologist to Skyline Assayers & Laboratories ("Skyline") in Tucson, AZ. Trace-element abundances were measured by inductively coupled plasma ("ICP") mass spectrometry at Activation Laboratories Ltd. ("Actlabs"), in British Columbia, Canada. ICP was used to analyze for Au, Ag, Cd, Cu, Mn, Mo, Ni, Pd, Zn, S, As, Ba, Hg, Sb, and W. Samples with copper values in excess of the analytical limit for ICP (10,000 ppm) were automatically re-analyzed by assay techniques. Other samples returning elevated ICP analytical results were also re-analyzed by standard assay procedures of Skyline and/or Actlabs. Both Skyline and Actlabs maintain internal QA/QC procedures for analytical results.
A discussion on the sample security and QA/QC program was included in a National Instrument 43-101 Technical Report entitled "Technical Report on the Sombrero Butte Project, Pinal County, Arizona, USA, prepared for Bell Copper Corporation" dated May 12, 2010, R.A. Blakestad, J.D., C.P.G. as Qualified Person (the "Technical Report").
In 2012 Copper Fox Metals Inc. purchased the Sombrero Butte property from Bell in a cash transaction, included in the purchase was all technical data generated related to the Sombrero Butte project.
Copper Fox has reviewed the QA/QC program implemented by Bell and the discussion of the QA/QC set out in the Technical Report to test the validity of the database before completing the recent study.
Geochemical Study:
Drill holes DDH SB-01 to DDH SB-23 were analyzed for a suite of elements, whereas DDH SB-24 to DDH SB-34 were only analyzed for copper. The purpose of the study was to determine if the copper mineralization in the breccia pipes had a single or multiple sources. Threshold concentrations used to determine anomalous values for molybdenum-gold-silver-arsenic-stibnite-manganese were taken from published information on Arizona porphyry copper deposits.