Pluton, Durango, Mexico

Pluton, Durango, Mexico

* Refer to the Silverton Metals Corp. (TSX-V: SVTN) website for further information regarding these Mexican assets, content will be removed soon.

Pluton is a 6,534-hectare property comprised of 3 contiguous exploration concessions. It is strategically located within the historic “Ojuela-Mapimi Mining District” and lies along the eastern front of the Sierra Madre Oriental in northern Durango. Exploration targets at Pluton are silver-lead-zinc carbonate replacement deposits, which may lie beneath the shallow alluvial cover. The property lies adjacent to and just north of the famous Mapimi Mining District, and west of Excellon’s (TSX: EXN) Platosa mine, an active silver producer with grades greater than 1000 g/t AgEq. Aeromag and ZTEM surveys show that Pluton, Platosa and the Mapimi districts all lie on the edge of a 40km wide buried intrusion, which does not outcrop. These geophysical surveys, along with geochemistry and IP, resulted in a 3900 m diamond drill program in 2011 aimed at testing for high grade carbonate replacement mineralization in the favourable limestone horizon marginal to the intrusives. All holes encountered silver-lead-zinc mineralization in veins in a shale hornfels overlying the carbonate horizon, but none of the holes passed into the host carbonate rocks. This vein mineralization is interpreted as leakage into the nonreactive hornfels from the intrusion and/or carbonates below. The high grade target of silver-rich massive sulfides could lie at the contact of the limestone and the downward projection of the mineralized fractures seen in the hornfels. An ancillary advantage to the district is that the Penoles Torreon smelter is only 50km away, and transport and power infrastructure is excellent.

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