Calgary, Alberta--(Newsfile Corp. - July 13, 2020) - Copper Fox Metals Inc. (TSXV: CUU) (OTC Pink: CPFXF) ("Copper Fox" or the "Company") and its wholly owned subsidiary, Desert Fox Copper Inc., are pleased to provide an update of recent studies and its exploration plans for its 100% owned Mineral Mountain porphyry copper project located approximately 15 miles east of Florence, Arizona.
Highlights:
- An 18.2 km chargeability/resistivity survey is planned to test two large porphyry copper targets.
- Age dating (U/Pb zircon age) of the quartz monzonite stock yielded a mean age of 69.7 +/- 0.4 Ma. confirming a Laramide age for the intrusive.
- The copper mineralization is hosted in a multi-phase intrusive ranging in composition from quartz monzonite to granodiorite.
- The Laramide age intrusive exhibits a significant degree of zircon inheritance from basement rocks but has not been structurally tilted (dismembered) after emplacement like many of the other Laramide age porphyry copper systems in Arizona.
Elmer B. Stewart, President and CEO of Copper Fox, stated, "The above highlighted points and our efforts over the past two years has re-defined the geology, identified two large porphyry copper targets, demonstrated the mineral potential of the project and strongly refutes many of the previous interpretations and concepts related to the Laramide age intrusion at Mineral Mountain. This intrusive is located on the same structural trend that hosts the Globe-Miami, Resolution and Ray porphyry deposits which have similar age dates and zircon inheritance from basement source rocks as the intrusive at Mineral Mountain. All the data, along with the size of the mineralized footprint, alteration patterns and widespread copper mineralization suggest the Laramide intrusive at Mineral Mountain could host a large porphyry copper system. The IP survey is designed to test the depth extent of the copper mineralization exposed in both targets and establish drill locations for the next phase of exploration."
Geophysical Survey:
Geofisica TMC has been contracted to complete an 18.2 km deep penetrating chargeability/resistivity survey over Target #1 and Target #2. The geophysical survey consists of nine, 400m spaced lines designed to test at depths of more than 500m and will include the historical chargeability anomaly outlined in 1971 within Target #1. As part of the process to obtain the permit required to conduct the geophysical survey, the Bureau of Land Management ("BLM") has advised that an environmental assessment will be required. The geophysical survey is expected to commence on receipt of permit approvals from the BLM and the Arizona State Land Department.
Significance of Age Dates:
A recent study by Seedorff, et al., utilizing U-Pb zircon geochronology on porphyry copper deposits in the Miami-Globe-Resolution-Ray area of Arizona indicated that the intrusions hosting Laramide age porphyry copper deposits exhibit variable magmatic sources and in places, a significant degree of zircon inheritance from basement source rocks. U-Pb zircon ages for intrusives in the Globe-Miami, Pinto Valley, and Resolution deposits ranged from ca. 69-61 Ma. and 69 Ma at Ray. The ages of the inherited zircon cores correspond closely to the ages of basement rocks implying that basement rocks of similar ages and lithologies contributed to the magmas that produced these Laramide porphyry copper deposits. The study was able to investigate the intrusives hosting the Laramide porphyry copper deposits at various depth due to normal faulting related to extensional tectonics during the Cenozoic period that dismembered and tilted many of these intrusives exposing various depth within the porphyry systems for study.