Status: Available for Option
Eskay Creek type precious metal VMS. Barrick’s historic Eskay Creek Mine, located ~60 km to the northwest, produced >3 M oz Au and 160 M oz Ag at an average grade of 48.4 g Au/t and 2221 g Ag/t. Epithermal Au mineralization is also a target e.g., Pretium Resources’ Brucejack epithermal deposit, located ~35 km to the northwest has proven and probable reserves of 6.9 million oz. gold. Au-Cu porphyry mineralization is postulated to be a target on the large Yellow Bowl Grid e.g., Seabridge’s immense KSM Au-Cu deposit ~45 km to the northwest.
Location & Infrastructure
Golden Triangle, ~30 km northeast of the Town of Stewart. Stewart Hwy 37A and the Stewart powerline are located ~10 to the south. Mountain Boy Minerals’ access roads up American Creek could facilitate road construction to the main exploration targets. The Todd Creek Project is contiguous with the Poly Property such that assessment credits can be spread across the whole land holding.
73 Mineral Tenures comprising ~130 sq. km. 33 Tenures owned by MRO; 37 Tenures under option. All Tenures are in good standing to at least June 30, 2016; MYAB Work Permit MX-1-583 in place until March 31, 2018.
Geology & Mineralization
VMS attributes of the Todd Creek Project (“TCP”) are distributed along a 10 km strike length of the Todd Creek Fault (“TCF”), part of the Golden Triangle regional structural connectivity; and, are associated with mainly pyroclastic rocks and felsic stratigraphy of the prospective Unuk River/Betty Creek/Dilworth Formations of the Lower-Middle Hazelton Group.
A fold structure with a W-SE axis is partially defined by the tilt angle magnetics and by magnetic vertical gradient from the 2010 Geotech VTEM survey. The VMS Feeder Zone (“VMSFZ”) is located near the nose of the fold and most every other mineral showing on the TCP including the South Feeder Zone Deposit (“SFZD”) is located on the north limb and associated with the favorable stratigraphy outlined by the tilt magnetics. Most of the Target Zones interpreted by Condor (2010) from the VTEM survey are associated with or proximal to the mineralized areas of the favourable stratigraphic horizon. Other than some initial sampling in 2008, the fold nose and east limb have yet to experience any detailed investigation.
The TCF has been the focus of one or more large hydrothermal systems that have resulted in a variety of genetically interrelated styles of mineralization including epithermal veins, Kuroko VMS type brecciated feeder zones and laminated syngenetic sulfides. Favourable geology includes rhyolite flow breccias and stacked exhalite and felsic horizons along with numerous showings and significant drill intersections.
For example, The SFZD is associated with a low angle splay off the Todd Creek Fault and has a historic NI 43-101, non-compliant resource of 207,000 t grading 5.48 g/t (Au Hemlo Gold Mines Inc., 1988 Annual Report), along with significant Cu credits. The parameters of the calculation are unknown and the resource should not be relied on.
The attributes of the project also include:
- Substantial alteration zones including pyrite-sericite (Mylonite Zone); epidote, sericite, limonite-jarosite, alunite, silica, hem, cpy-born-py (SFZD); limonite, silica, chlorite, carb, sericite, py-cpy-gal-sphal (VMS Zone); silica, hem, spec, mag, carb (NEXT Zone); jarosite-alunite, epidote, silica, limonite, py-cpy, carb, sericite, chlorite, barite (Yellow Bowl, Knob Zones); ank, barite, jasper, jarosite-alunite, limonite, py-cpy-sphal-gal (Orange Mountain).
- Readily apparent mineral/metal zoning: py-Au; Au-cpy-py; Au-cpy-spec-mag; Au-cpy-py-bar-jasper; Ag-gal-cpy- born-sphal; and, alteration zoning incl. propylitic to potassic.
- Well developed, orthogonal structural fabric with prominent structural junctions and ore shoot morphologies.
- Numerous EM, VTEM, mag and radiometric airborne anomalies; ground mag and IP anomalies associated with Fall Creek, Knob Zones; mag signature NEXT Zone.
- Mineralized Zones (Knob, Mylonite, VMS, By, Yellow Bowl, Knob, Orange Mountain) emergent from rapidly receding glaciers.
- No ground exploration since 2008, numerous follow-up targets, readily apparent drill targets.
- Historic data base including 92 drill holes has been compiled and interpreted. Exploration permit in place including some components of historic camp.
No work has been carried out on the TCP since 2008. However, glaciers continue to rapidly recede and exploration targets continue to emerge on an annual basis. As a result, the classic Eskay Creek type VMS environment now has numerous evolving attributes to follow-up including South Zone Feeder Deposit; and, VMS Feeder Zone discovered in 2008. Future work is required to discover VMS syngenetic sulfides in depositional basins postulated to exist in proximity to the VMS feeder zones. The integrated data base and historic core can be used to model and prioritize follow-up targets in order to commence a strategic field review.
Agreement & Terms
Millrock is currently seeking potential joint venture partners for the project. If desired, Millrock can serve as operator on behalf of an earn-in joint venture partner. Qualifying exploration expenditures are eligible for a 20% Mineral Exploration Tax Rebate from the Province of BC.
“THE TECHNICAL INFORMATION WITHIN THIS DOCUMENT HAS BEEN REVIEWED AND APPROVED BY GREGORY A. BEISCHER, PRESIDENT & CEO OF MILLROCK RESOURCES INC. MR. BEISCHER IS A QUALIFIED PERSON AS DEFINED IN NI 43-101.”