||Gold and silver in veins, stockworks, breccias and bulk-tonnage deposits
||177 km south of Salt Lake City, Utah
||80 mineral claims totalling 668 ha
||Troymet holds an option to earn 70%
The Wildcat project is prospective for gold and silver
mineralization in veins, stockworks, breccias and bulk-tonnage deposits
along the Joy Fault, and in structural/stratigraphic hosts in Cambrian-aged
carbonate rocks.The mineralization has some Carlin-like features, with
high-grade gold in jasperoids hosted by Cambrian sediments similar to
Long Canyon in Nevada. The geochemistry however, points to a strong
intrusive source, and mineralization within caldera-related faults
suggests intrusion-related structural targets similar to Cove-McCoy,
Fortitude and other distal disseminated gold deposits of central Nevada.
Troymet’s 2015 exploration program employed new exploration and
targeting concepts, which resulted in the identification of important new
drill targets in previously unrecognized settings. Detailed geological
mapping, geochemistry and geophysics identified the potential structural
controls of a large area of gold-in-rock chip mineralization as well as
new drill targets in the Core Target Area.
has completed detailed geophysical surveys, rock chip sampling and soil sampling to better detail previous surveys and complete coverage of newly staked
claims in the Core and SE target areas. Priority drill targets have
been selected and access confirmed to these sites. Troymet now has the
necessary information to proceed with permitting a drill program.
Gold and copper were first discovered in the Drum Mountains area in 1872. Small prospect pits are found within and around the Wildcat claim block but there has been no recorded production. Limited exploration was conducted by a handful of companies, including brief programs by Homestake Mining in 1980 and Gold Fields in 1989. AuEx (now Renaissance Exploration) staked the property in 2010 and conducted reconnaissance mapping and sampling, yielding high-grade gold in rock chip samples. In 2011-12, Newmont Mining participated with an earn-in agreement and completed 3,505 m of drilling. Results were disappointing; however, the drilling focused only on stratigraphic targets. Follow-up field work in conjunction with the review of geochemical and geophysical data has defined several
important and untested structural targets.
Property-wide geological mapping identified 13 projected intersections of secondary faults with the Joy Fault, all of which are primary targets for gold and silver mineralization. Importantly, only one historic drill hole has intersected the Joy Fault proximal to one of these interpreted intersections/targets. This hole, drilled by Gold Fields Mining in 1991, intersected 22.72 m grading 1.27 g/t gold.
SE Target Area
Seven of the newly recognized structural targets occur in the SE Target area and some have associated pathfinder element soil anomalies. None of the targets have been drilled and all are easily accessible from established roads. Within the target area the Joy Fault is largely concealed by overburden. Consequently, soil geochemistry, geophysics, structural mapping and trenching are critical in identifying drill targets. The target area is located along a pronounced NW-trending break in Bouguer gravity. Magnetic (TMI) data shows a strong magnetic low, approximately 1,800 m long and ~500 m wide, developed in the Cambrian carbonates along the Joy Fault.
Troymet's sampling of decalcified carbonate in a prospect pit near the intersection of a secondary fault with the Joy Fault yielded 2.2 and 3.9 g/t gold as well as 100 and >500 ppm tellurium and 100 and 283 ppm antimony. Three jasperoid rock chip samples from the same prospect pit assayed 0.115, 1.29, 2.46 g/t gold and also contained anomalous pathfinder element geochemistry (July 27, 2015 news release).
Historic soil sampling by Newmont Mining in 2012 identified a 300 m long tellurium >> mercury >>>gold anomaly paralleling the Joy Fault in the SE Target area. The average tellurium concentration of 0.32 ppm (five samples) compares to a background of <0.05 ppm. Troymet's has verified the anomaly with additional soli test lines that yielded similar results. This anomaly has never been trenched or drilled. Gold and mercury concentrations in the same area are not as continuous, but range from 2 to 122 ppb gold and from 0.05 to 4.9 ppm mercury.
The combination of the anomalous prospect pit and the soil anomalies point to possible mineralization at shallow depths in this area.
Core Target Area
The Core Target Area encompasses a significant structural
intersection on the Joy Fault where a step-over/ramp structure places
Paleozoic carbonate rocks against Tertiary volcanic rocks of the Thomas
caldera. Re-logging of drill-chips from the only hole collared in
volcanic rocks in the area identified a possible volcano-structural
depression and/or vent complex with possible tectonic and hydrothermal
breccias. This structural depression and possible vent complex likely
helped generate and focus the hydrothermal system in the step-over
structure near the volcanic-sedimentary contact. The prominent magnetic
lows that characterize this area strongly indicate pervasive alteration
and demagnetization (Core Target Structure).
Troymet completed detailed magnetic and EM surveys of
this area in 2015, which identified a number of concealed structures
consistent with a step-over/relay ramp structure along the Joy Fault.The structure occurs near the focal point of a radial set of
mineralized jasperoids with gold concentrations ranging from up to 301 ppm (High Grade Hill;
November 17, 2015 news release), and also at the focal point of project-scale geochemical
This structural setting is the focus of a 2 km long rock chip
geochemical zoning pattern where gold progressively increases towards
the Joy Fault (Au in Rock Chips & Te in Rock Chips).
The pattern includes proximal bismuth, copper and silver and peripheral
lead, tellurium and arsenic relative to the Joy Fault. Further
confirming this pattern, principal component analysis shows that factor 2
scores, mapping a precious-metals related assemblage, progressively
increase in strength as the Joy Fault is approached (PCA).
This points to the metal-bearing hydrothermal system being located in
the structurally complex area where magnetics strongly indicate
pervasive alteration and demagnetization.
Troymet plans to drill test a number of attractive targets in this area,
which it believes have a high discovery potential for high-grade gold
and silver mineralization in veins, stockworks, breccias and
bulk-tonnage deposits along the Joy Fault and structural/stratigraphic
targets in Cambrian carbonate rocks.
N Target Area
The North target appears to be an extension of the Core target area, with the two zones covering a distance of ~1 km.
The target is clearly recognizable in principal component analysis of the rock chip geochemistry (PCA) and it has a strong gold and tellurium signature (Au in Rock Chips & Te in Rock Chips). Structural complexity in the North target, created by
intersecting faults, appears to have created the necessary porosity and
permeability for the emplacement of mineralization, as evidenced by the rock
geochemistry. Troymet plans further work in this area once field work resumes.
The Wildcat project lies in the Detroit Mining District, an historic
gold producing region in the northern Drum Mountains of Central Utah.The property straddles the Joy Fault, which juxtaposes Tertiary-aged volcanic tuffs of the Thomas caldera with Cambrian-aged carbonates. The dominant rocks within the property are limestone and jasperoids.The jasperoid is developed in carbonates with thin-bedded silty, sandy,
calcareous units amenable to decalcification and mineralization. Jasperoids form prominent outcrops within the claim block, ranging in dimensions from several feet to over 152 m in length and up to 45 m in width.
Variably iron-stained boulders and knobs throughout portions of the
property characterize these jasperoid zones. Where unoxidized, clots and
grains of pyrite are visible. Several breccia zones have also been
mapped in the area, consisting of brecciated limestone with silica in
a stockwork of fractures that commonly grade into total silica
Aside from the NW-trending Joy fault, the dominant structural orientations related
to mineralization include WNW and ENE
striking faults and fractures. Drainages and jasperoid breccias
partially follow these two structural directions.