The property consists of mineral clams covering over 4000 hectares. The claims are subject to an L.O.I. for an option agreement with a single Mexican owner.

Location and Access

The property s located in northwest Sonora, 40 km west of Caborca, on 1:50,000 map sheet Jesus Garcia (H12A65) and extending north onto El Diamante (H12A55).  Geographical coordinates are 345,000 East and 3,340,000 North (Nad27 UTM Zone 12). Access is from Mexico highway 44 west of Caborca for about 40 km, and southwest on follow 4 wheel drive roads for 15 km to old mine workings on the property.

General Location of El Antimonio property.

View to North from central part of El Antimonio claim area showing
typical terrain of low topographic relief and sparse vegetation.

Geological Settings

The area lies south of but close to the hypothetical Mojave-Sonora Megashear.

Host rocks are various sedimentary rocks including Permo-Triassic limestone, Jurassic arenite and Cretaceous arenite, all intruded by upper Cretaceous-Lower Tertiary diorite, and Tertiary rhyolite and rhyodacite. 

Highly ferruginous argillaceous sedimentary units are present that host low-grade gold.

Mineralization

Low sulphidation Sb, Ag, Au veins - mesothermal style with late-stage epithermal overprint.

Quartz veins, vein breccia, quartz veinlets and silicification associated with faults and shear zones cut sedimentary rocks including siltstone, greywacke and local limestone. The vein quartz is of two types. The main type is white, medium-grained, cockscomb-textured to massive white quartz of probable mesothermal style.  The second type consists of microcrystalline white chalcedonic quartz of low temperature epithermal style. The two types occur together in fault zones that are associated with purple hematitic altered wall rocks. The hematite iron oxide is a supergene weathering product of original sulphides presumed to be pyrite. Sulphide mineralization is rare within the vein quartz, and consists of patches and small seams of black-grey fine-grained sulphide.

Several clusters of veins have been previously mined for antimony within an area extending over 6km x 4km. In each case, one or more veins or fault structures has been excavated by pits or stoped along the structure, accessed by shafts or adits. The overall amount mined appears to be relatively small (maybe less than 250,000 tons).

Historical production of antimony and gold from placer workings of gravels derived from the veins occurrences is reported. Today, prospectors are recovering small amounts of gold nuggets from gravels using metal detectors. The nuggets do not appear to have been transported very far as they are fairly coarse and not rounded or flattened.

Alteration

Alteration is generally widespread and consists of argillization with limonite and/or hematitic iron oxide staining that extends a few to hundreds of meters around the mined fault/vein structures. The altered zones commonly contain quartz stringers (10% quartz). There are large areas of alteration and some quartz veins that have never been pitted or mined.

Structure

All of the historical workings are located on discontinuous quartz veins and quartz stringer zones associated with faults. Several orientations of vein/fault structures are developed. Large areas of altered rocks characterized by intense fracture networks and crackle breccias, with hematite and/or limonite coatings on fractures.

Geochemistry

A total of 42 samples were collected from historic workings and altered outcrops in 2009. The samples were collected from seven different clusters of old mine workings over an area of over 4 km by 2 km. These workings are sited on vein swarms, with each swarm localized within areas about 0.5 km square. Further sampling was done in October of 2010 following acquisition of additional ground. 

Several samples from the 2009 campaign returned elevated gold values ranging up to 2.15 g/t Au, with the arithmetic average of all 42 samples collected being 0.316 g/t Au. Silver results are elevated and range up to 68.5 g/t Ag. Antimony is high (over 10,000 ppm) and elevated values for several other metals were obtained including As, Ba, Mn and locally Pb and Zn. The results are considered highly significant because most of the samples are of alteration zones and quartz stringer zones exposed in numerous old shafts, stopes and pits. The samples are of altered and weakly mineralized material that was left behind so the ore grade material that was mined is not included in the average.

The best sample in terms of grade times width is 1.23 g/t Au over 5.2 m, which was a chip sample across a ferruginous siltstone containing 10-20% quartz stringers. This sample demonstrates the presence of open pit ore-grade material in altered sedimentary rocks that were never previously mined. 

The reader is cautioned that these results are preliminary in nature and are not conclusive evidence of the likelihood of the occurrence of an economic mineral deposit.

All samples were analyzed at ALS Chemex in North Vancouver by Fire Assay for gold and either AA or ICP techniques for silver, base metals and pathfinder elements. QA/QC procedures included the insertion of blanks and standards in the sample stream at a frequency of 10%. 

Exploration Target

The target is a bulk mineable gold deposit centered on one or more of the previously mined vein areas or a new discovery. It is suggested that there is excellent potential for an open pit gold mine in this area. This conclusion is based on the presence of grades similar to the average grades of nearby heap-leach mines such as La Herradura (largest gold producer in Mexico with an average ore grade of 0.75 grams per tonne Au; reserve 10.9 million ton at 0.75 g/t Au) and El Chanate (reserve: 39.5 million tonnes at 0.66 g/t in December of 2008). Both of these mines are situated within a gold metallogenic belt known as the Mojave-Sonora Megashear. At La Herradura the ore body is interpreted as mesothermal-style mineralization associated with high-angle structural zones (shear zones) along the Mojave-Sonora Megashear. At El Chanate, gold and silver mineralization is hosted in thinly bedded to massive sediments, comprising sandstones and conglomerates in the upper member, and siltstones and mudstones in the lower member. 

The potential is deemed excellent due to the presence of extensive zones of alteration and fracturing, the development of mineralized veins over a large area, and the fact that previous mining activity stopped at the water table and where overburden concealed the veins. The widespread fracturing and alteration of sedimentary rocks suggest potential for disseminated-style mineralization. Oxidation is extensive suggesting possibilities for heap leach oxide gold.