Pinnacle Activity Ticker
Redhawk (RDK) Published their Copper Creek 43-101 on Sedar Today
I am reading it via stockhouse link to sedar.138 pages and simply the intro below
COPPER CREEK 2012 MINERAL RESOURCE UPDATE PINAL COUNTY, ARIZONA, USA
Redhawk Resource, Inc. and Redhawk Copper, Inc. (Redhawk) requested Independent Mining Consultants, Inc. (IMC) to develop a resource estimate for the breccia and porphyry deposits which lie within Redhawk’s Copper Creek Property in Pinal County, Arizona, USA. These deposits contain copper mineralization with associated molybdenum (moly), gold and silver, in potentially economic concentrations.
The current mineral resource is an update to the one reported by IMC in October 2008 and documented in its report “Copper Creek 2008 Mineral Resource – Pinal Country, Arizona, USA – Technical Report”, dated October 28, 2008 (filed on SEDAR) and used for the March 2010 Scoping Study described below.
In March 2010, a scoping study for a selective underground mining project was prepared by K D Engineering Co., Inc., “Redhawk Copper, Inc. Copper Creek Project – 2,500 – 10,000 tpd Scoping Study”. This targeted a small underground mining approach. The resource has increased since that study and the development approach has shifted to a large bulk mining method either by open pit or underground. The results of the March 2010 scoping study do not apply to the current thinking for the development of the 2012 mineral resource. The scoping study has been referenced, but its conclusions and financial results no longer apply to Redhawk’s management direction for the project.
1.1 Property Description
The Copper Creek property is located in Pinal County, Arizona on the east flank of the Galiuro Mountains. The property is approximately 75 miles (120.7 km) northeast of Tucson, Arizona and 15 miles (24.1 km) from San Manuel, Arizona. The property includes all or portions of section 33 T7S R18E, sections 1, 2, 3, 4, 9, 10, 11, 12, 13, 14, and 15 T8S R18E G&SRB&M. The property ownership is comprised of approximately 1,005 acres (406.7 hectares) of Patented Federal Mining claims, three Arizona State Prospecting Permits totaling 729.93 acres (295.4 hectares), 216 unpatented Federal Lode Mining claims owned by Redhawk, and four unpatented Federal Lode Mining claims under lease purchase agreement to Redhawk. The total acreage controlled by Redhawk on the Copper Creek property is more than 5,015 acres (2,030 hectares). The property is situated in the Bunker Hill Mining District. Figure 4-1 and 4-2 illustrate the property location.
1.2 History and Background
Mining activity in the Copper Creek district is reported to have started in 1863. During the 1880s there was mining of silver and in the early 1900s interest began in the high grade breccia pipes. During the period of 1950s through 1990s, various companies explored at Copper Creek, each building on the knowledge of the previous companies. Between 1960 and 1995, 77 deep holes were drilled to try and understand the source of the mineralization for the breccia deposits and determine if there was a large porphyry style deposit at depth. In 1995, AMT (USA), Inc. acquired the property and focused on the Old Reliable and some of the breccia deposits for its exploration work. Redhawk took over the property in 2004 and started its drilling program in 2006. Redhawk has spent a great deal of time organizing the information and drill core developed by the previous companies. Redhawk has drilled 72 holes (163,527 feet) since it took over the property.
1.3 Deposit Description
The Copper Creek mineralization consists of chalcopyrite, bornite, and chalcocite. Copper oxide minerals locally replace sulphides in the near surface supergene weathering environment. A chalcocite enriched, supergene zone forms the principal part of the Old Reliable deposit above the water table. Molybdenite occurs in sufficient amounts in the Childs-Aldwinkle breccia, the Old Reliable breccia, the Keel, and the American Eagle to be of economic interest. Gold and silver occur but have not been systematically assayed by previous owners. Redhawk has re-assayed individual intervals to better understand the precious metal grade distribution where previous owners had assayed long composite runs.
Near-surface mineralization at Copper Creek occurs predominately in the breccia bodies. Sulfides are concentrated within the breccia matrix, and are dominated by chalcopyrite, bornite, and pyrite, with minor chalcocite in the upper parts of some pipes. High-grade mineralization in the breccias typically occurs as prominent masses and clots of copper minerals filling open spaces, or as sheeted veins along the edges of the pipes. Relative levels of copper, molybdenum, gold and silver vary considerably from breccia to breccia.
Recent drilling indicates that the deeper American Eagle and Keel porphyry-style resources are connected and form a single copper-mineralized body at least 5000 feet long northwest-southeast, which is open in most directions. This mineralized body is controlled by a broad dome-shaped zone of common, subhorizontal to steep EDM quartz-sulfide veins. These veins display thin centerlines of quartz and sulfides, surrounded by much thicker halos of biotite, sericite, and abundant copper sulphides. The EDM vein zone is hosted mostly in Copper Creek granodiorite but appears centered on a cluster of syn-mineral granodiorite porphyry bodies. In parts of the American Eagle zone, many EDM veins are re-opened as semi-massive chalcopyrite-bearing veins that enhance the copper grade. Superimposed on the EDM vein zone are breccias and zones of intense quartz-sericite alteration, both of which tend to carry high-grade copper which further upgrades the same volume of rock. A near-vertical set of EDM veins extends above the well mineralized dome-shaped EDM vein zone to the present surface, where outcropping veins are widespread and typically trend east-northeast. Sulfides in the American Eagle and Keel zones are zoned with depth, with pyrite-dominant mineralization near the surface transitioning into chalcopyrite-dominant rock in the better mineralized zones, with increasing bornite at depth.
1.4 Drill Hole Data
Exploration drilling has been conducted by most of the previous owners of the Copper Creek property, and Redhawk commenced drilling during the fourth quarter 2006. For the 2012 mineral resource update, the data base consists of 545 holes for a total of 632,660 feet of drilling. Since it took over the property and started drilling in 2006, Redhawk has drilled 72 holes totaling 163,527 feet. Of the 72 holes drilled by Redhawk, 42 were included in the 2008 mineral resource and 30 holes (115,334 feet) have been added since then, along with assays for previous drilling which was not assayed when drilled (including intervals from both Redhawk and previous owners).
There are six mineralized areas which are of interest at Copper Cheek and are the combinations of the breccia zones (Globe, Copper Prince, Old Reliable, Childs-Aldwinkle, and the Mammoth) with the deeper porphyry mineralization (Keel, which is below the Mammoth breccia and the American Eagle, to the southeast of the Keel). Figure 1-1 shows the drill holes and the limits of the mineralized areas. Table 1-1 summarizes the number of holes, footage and number intervals plus intervals with assays for copper, moly, and silver within each of the mineralized area limits shown on the map. The total number of holes on this table exceeds the 545 total because some holes cross from one area to another.