Willow Property

Elko County, Nevada

The Willow Creek property is located in the northern Snake Mountains approximately 30 air miles north-northwest of the town of Wells, Nevada. The property consists of 50 QA-claims and  39 CC-claims.  The claims are 100% owned, subject to a net returns royalty of 1% on the QA claims and 3% on the CC claims.  The contiguous land position covers approximately 1,780 acres (2.8 square miles) along the western rangefront of the Snake Mountains within sections 1, 11, 12 and 13, T42N, R60E; and sections 7 and 18, T42N, R61E. The area was identified as prospective for Carlin-type gold deposits by Carlin Gold geologists as part of a GIS-based spatial analysis of regional public domain geochemical datasets. The property lies along an exciting potential new gold trend – the Jarbidge-Pequop trend – extending from the Jarbidge district to the newly discovered gold deposits in the Pequop Mountains (see Figure 1).

The property covers approximately 2 miles of strike length along the Roberts Mountain Thrust (RMT, see Figure 2). The RMT trends northwest and lies sub-parallel to the western rangefront of the Snake Mountains. Exposed eastern assemblage rocks below the RMT include favorable lithologies of the Roberts Mountains and Hanson Creek Formations, as well as the Eureka Quartzite and uppermost dolomite of the Pogonip Group. Western assemblage rocks above the RMT include siliciclastic rocks and greenstones assigned to the Valmy Formation and Slaven Chert. Altered intrusive rocks have been recognized at three locations on the property including a felsic dike at Willow Creek, and intermediate to mafic dikes within and north of Currant Creek. Zircons extracted from the Willow Creek felsic dike have yielded an U/Pb isotopic age date of 42 Ma, indicating a late-Eocene age of emplacement. 

The mapped units and the RMT are cut by series of property-scale, NE-trending, high-angle faults, which essentially define prominent NE-SW drainage geometry of the west flank of the range (ie. Willow, Currant and Badger Creeks, see Figure 2).  Hydrothermal alteration associated with the NE-trending structures includes decalcification and silicification in the carbonate rocks. Local strong decalcification is present in the Roberts Mountains Fm. at Willow Creek in proximity to the altered felsic dike. Intense silicification (jasperoid) is structurally controlled by NE-trending faults, and locally bleeds out laterally along favorable stratigraphic intervals adjacent to the faults. Weak but widespread decalcification and passive silicification is present in the Roberts Mountains Fm. throughout the property. Sericite (illite?)-pyrite alteration is common in the intrusive rocks. Post-mineral movement on some NE faults has offset jasperoid bodies. Western assemblage rocks are relatively unaltered above the RMT adjacent to altered carbonate rocks.

The exploration target is a Carlin-style, disseminated gold deposit hosted in platy silty carbonate rocks of the Roberts Mountains Formation and similar lithologies in the Hanson Creek Formation. Three specific target areas have been identified for drilling: the Willow Creek area, north of Currant Creek, and the Badger Creek area. Rock chip sampling has yield gold values up to 761 ppb at Willow Creek, up to 368 ppb at Currant Creek, and up to 159 ppb at Badger Creek. Anomalous gold at Willow Creek occurs along silicified NE-trending structures in proximity to the altered felsic dike. Jasperoid and anomalous gold at Currant and Badger

Figure 1. Digital elevation map of northeasetern Nevada showing gold deposits and trends

Creeks are also associated with NE-trending structures. Associated trace element geochemistry in rock samples includes elevated As (up to 2140 ppm), Sb (up to 418 ppm), Hg (up to 11.75 ppm) and Tl (up to 20 ppm).

The property has received only a modest amount of past exploration. The Willow Creek area has seen shallow drilling of up 11 holes by Freeport and another unknown company in the early 1980’s. The Willow and Currant Creek target areas were partially tested with four holes by a Carlin joint venture partner in 2008, two holes in each area. There were no significant gold values in the initial four holes, but the primary target at Currant Creek remains untested.  Additional untested targets also exist, including the Badger Creek target area. Recent road-cut sampling at the Currant Creek target has encountered anomalous gold and a strong arsenic and thallium anomaly within the Roberts Mountain Formation.  This anomaly remains untested.  The property has an approved Notice of Intent-level permit for drilling from the BLM.  The Willow Property is a high quality, drill-ready property located along an exciting new sediment-hosted gold trend.

Figure 2. Generalized geologic map of the Willow property.