Red Hill Project
80 claims covering 1,500 acres 24 km SE of the 12M oz Cortez Hills gold deposit within the prolific Cortez trend in Eureka County, Nevada
Previous drilling by Barrick returned high-grade results, including:
- 24.4m of 4.99 g/t Au, including 13.7m of 8.11 g/t Au confirming sediment-hosted gold system is present
Property not adequately tested for deep potential given Barrick’s nearby multi-million ounce Goldrush discovery 12 km northwest of Red Hill along the Cortez trend
Property acquired for an initial $25,000 payment with subsequent payments spread over 10 years and annual claim maintenance fees of $13,244
Gold in the Cortez Trend in Nevada, USA
Gold mineralization is hosted in silty carbonate rocks of the Denay formation associated with altered lamprophyre dikes; and high levels of arsenic, antimony, mercury and thallium. These features are indicative of a Carlin-style gold system.
Previous drilling at Red Hill intersected
Amaerican Pacific believes that the Red Hill Property has been inadequately tested for the deep potential considering Barrick’s nearby multi-million ounce Goldrush discovery located 12km northwest of Red Hill along the Cortez trend.
Upon production commencing on the Red Hill Property, American Pacific will pay Nevada North a 3% net smelter royalty (NSR), 1.5% of which American Pacific may buy back for US$3,000,000.
During the NuLegacy Gold Corporation’s drilling campaigns at the Red Hill project, only one drill hole was directed at the deep potential of the property near BRH-013. The property was inadequately tested for the deep potential considering Barrick’s nearby multi-million ounce Goldrush discovery, 7.5 mi (12km) northwest of Red Hill along the Cortez trend. Goldrush occurs at similar depths as the mineralization in BRH-013.
In this drill hole, gold mineralization is hosted in silty carbonate rocks associated with altered lamprophyre dikes and high levels of arsenic, antimony, mercury, and thalium, indicating the potential for a Carlin-style gold system present at Red Hill.
Red Hill is located in the northern Simpson Park Mountains, approximately 80 road miles (128 km) southwest of Elko, Nevada. The property is along the Cortez Gold Trend, a west-northwest alignment of bulk-mineable, sediment-hosted gold deposits including Pipeline, Cortez Hills, Gold Acres, Cortez, and Horse Canyon.
(Figure 1) Red Hill is 15 miles (24 km) southeast of the Cortez Hills gold deposit, a +12 million ounce sediment-hosted gold deposit owned by Barrick Gold Corporation.
1. Upper plate, siliceous sedimentary rocks of the Vinini and Valmy Formations. Chert, mudstone, and greenstone are typical rock types. These rocks are covered by pediment gravels in the northern and eastern portions of the property. Siliceous rocks are generally poor hosts for large, sediment-hosted gold deposits.
2. Lower-plate, Silurian to Devonian age carbonate rocks dominated by silty to muddy limestone, fossiliferous limestone, siltstone, and lesser chert. These rocks are included in the Horse Mountain, Devil’s Gate, Denay, and McColley Canyon Formations. At Red Hill, lower plate carbonate rocks crop out in the mountains and are present beneath pediment gravel and upper plate rocks to the north and east. Carbonate rocks are the preferred host for multi-million ounce gold deposits along the Cortez and Carlin Gold Trends.
The upper and lower plate rock packages are separated by a low angle, regional fault known as the Roberts Mountains thrust. Erosion of the upper plate rocks created “windows” that expose favorable lower plate carbonate rocks. At Red Hill, the JD Window is one of five unique carbonate windows along a 35 mile (56km), west northwest-striking corridor through the Shoshone, Cortez, and Simpson Park mountain ranges. The alignment of carbonate windows coincides with the Cortez Gold Trend (Figure 1). Within this corridor are the +12 million ounce Cortez Hills deposit and the +20 million ounce Pipeline deposit. They are located in the Cortez and Gold Acres windows, respectively.
Lower and upper plate rocks are complicated by numerous high-angle east-northeast, northwest, northeast and north-south striking faults and northwest-striking folds.
Joint Venture Exploration
Miranda Gold optioned Red Hill to Placer Dome US, Inc. (PDUS), in 2004. PDUS completed geologic mapping, a CSAMT survey, a systematic soils program, a CO2 gas survey, and one drill hole in 2005. Drill hole PRH0508 was designed to test a gravel covered horst margin inferred from CSAMT data. The hole ended at 940 feet in upper plate chert/mudstone. Favorable lower plate carbonate rocks were not intersected and no significant gold intercepts were encountered.
In 2006, Barrick became Miranda’s funding partner at Red Hill following its merger with Placer Dome. Barrick, as operator, completed 9,860 feet (3,006m) of drilling in four holes at the West Pediment prospect and detailed gravity at the East Pediment prospect (Figure 3). Hole BRH-013 intersected 80 feet of 0.146 oz Au/t (24.4m of 4.987g Au/t) from 1,920 to 2,000 feet (585.4 to 609.8m), including 45 feet of 0.237 oz Au/t 913.7m of 8.105g Au/t) from 1,920 to 1,965 feet (585.4 to 599.1m) (Figures 3 and 4). Gold mineralization is hosted by lower plate carbonate rocks of the Red Hill member of the Denay Formation. Altered lamprophyre dikes and high levels of arsenic, antimony, mercury, and thallium are associated with the gold intercept. (Figures 5, 6 and 7) These features indicate that a Carlin-style gold system is present at Red Hill.
Technical aspects of this website have been reviewed and approved by the designated Qualified Person (QP) under National Instrument 43-101, Eric Saderholm, P.Geo.
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