Completion Of Hyperspectral Survey On Sombrero Butte Copper Project
ALBERTA - Copper Fox Metals Inc. and its subsidiary, Desert Fox Copper Inc. announced the completion of the planned Hyperspectral Survey over its Sombrero Butte copper project. The project is located approximately 3 kilometers south of the Copper Creek porphyry copper deposit in the historic Bunker Hill Mining District in Arizona.
Elmer B. Stewart, President & CEO, said, "The extensive overburden cover at Sombrero Butte has hampered efforts to locate and map the extent of mineralized breccia pipe clusters and porphyry copper alteration patterns. At Sombrero Butte two distinctly different styles of alteration have been identified. The north end of the property hosts multiple breccia pipes associated with strong potassic alteration whereas the south end of the property hosts both mineralized breccia pipes and breccia pipes exhibiting higher temperature, Advanced argillic alteration, typically found in the deeper levels of the porphyry system. Combining the Hyperspectral data and previously collected trace element geochemistry can be used to identify areas of alteration associated with breccia pipes, hydrothermal centers and/or styles of mineralization indicative of porphyry copper deposits not readily apparent at the outcrop level."
The combination of an extensive cover of locally derived overburden and the recessive nature of mineralized breccia pipes limits the effectiveness of mapping programs on the Sombrero Butte project. The historical drilling at the north end of the property demonstrates that both exposed and buried breccia pipes can contain significant intervals of copper +/- molybdenum-gold-silver mineralization hosted in potassic and sericitic altered Copper Creek granodiorite.
In addition to the mineralized breccia pipes located at the north end of the property, the southern portion of the Sombrero Butte project hosts a significant number of mineralized breccias pipes as well as 12 breccia pipes containing the mineral dickite. Dickite is an indicator of Advanced argillic alteration that has been found in major porphyry copper systems, including Resolution, Bisbee, and San Manuel; well-known copper deposits located in the Laramide porphyry copper belt in Arizona. Advanced argillic alteration is typically found in the deeper levels of the porphyry system and is often used as an indicator of mineralization, particularly in the case of porphyry copper deposits.
The Hyperspectral survey is an effective exploration tool that in conjunction with other exploration data provides the possibility of looking through the overburden to locate and map the extent and intensity of alteration patterns typical of porphyry copper style mineralization and associated breccia pipes.
The Full Spectrum Hyperspectral Survey covered the entire Sombrero Butte project and collected continuous Visual and Near Infrared ("VNIR") and Shorth Wave Infrared ("SWIR") data. Specim AISA Fenix 1K and Specim AISA OWL III instrumentation were used to collect the data in N-S flight line direction. The VNIR and SWIR hyperspectral data collection utilize 320 spectral channels ranging from 4.0-2.45µm and the Longwave hyperspectral data was collected utilizing 80 spectral channels ranging from 8.0 - 11.8 µm.