Porphyry Copper Opportunity
The East Tintic district has historically been recognized as an area prospective for large porphyry style Cu-Au-Mo mineralization, displaying many similar hallmarks to and having a larger surface geochemical footprint than the area surrounding Kennecott’s (RTZ) iconic Bingham Canyon Cu-Au-Mo porphyry deposit, located only 50 miles to the north.
The technical team at TCM brings with it a strong background in porphyry exploration and discovery, having discovered and drilled the large Malmyzh Cu-Au porphyry system in Far East Russia prior to acquisition of the TCM property.
TCM recognizes the advantages of attracting a major partner to advance exploration over the prospective porphyry areas within its land holdings. A data base of information along with an offer to earn into the porphyry copper opportunity will be actively marketed to major and mid-tier mining companies during the first quarter of 2021. TCM has engaged Richard Leveille, former President of Freeport McMoran Exploration Corporation to lead this effort.
To this end, TCM has compiled extensive historic maps and information with its own field mapping and sampling completed by the company since its arrival in 2019 into a database, and outlined a path for a third party to earn-in.
The East Tintic is located immediately northeast of the Silver City Stock and Treasure Hill monzonite, was and is being explored for porphyry-style mineralization by a number of major mining companies.
TCM’s extensive land holding and major position within the East Tintic district displays significant surface alteration driven by a large, (or several large) hydrothermal systems at depth.
On TCM’s land, a number of silica-alunite lithocap associated with porphyry emplacement are exposed at surface, and are surrounded by a significant metal endowment of carbonate replacement base-metal mineralization.
Three large lithocaps are identified on TCM’s property, these being:
- Big Hill lithocap, that was variably and minimally explored by Anglo American and Kennecott (RTZ) between 2008 to 2014;
- Silver Pass lithocap, with only 2 drill holes completed by Kennecott in 2014 and also remains under-explored;
- Government Canyon lithocap, identified from regional spectral data and acquired by TCM in late 2019 remains unexplored.
The periods of porphyry exploration between 2008 to 2014 by Anglo American and Kennecott resulted in a handful of deep drill holes completed to typical depths of 1,200m. Four drill holes were completed by Anglo American into the Big Hill target, with Kennecott later drilling groups of one and two holes into a number of other porphyry targets, including only 2 holes into the Silver Pass lithocap.
Both the Silver Pass and Big Hill lithocaps remain under explored given the surface alteration and tenor of the surrounding halo of base-metal mineralization. In particular, the margins and structural corridors passing through the lithocap areas remain unexplored, where historic records appear to document altered porphyry and different porphyritic intrusive phases intersected within adjacent underground working, with elevated Cu mineralization recorded.
The Government Canyon area located 2 miles south of the main TCM land holding was acquired after regional spectral data lead the company to conduct a field reconnaissance trip, identifying a significant silica-alunite lithocap exposed at surface. The Government Canyon area is dominated by a strong east-west structural fabric and is one of the few canyons with this structural trend to report anomalous copper from earlier exploration completed by Anaconda during the 1960’s.