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The Anillo de Fuego area is located to the south of the town of Sabinas Hidalgo on the main road to Monterrey. The mineral prospects within the concession are located along the crest of the southern third of the Sierra Lampazos range approximately 75 kilometers northeast of Monterrey and a subsidiary northwest-southeast trending range located 45 kilometers northeast of Monterrey.
Access to the prospects in this concession area is gained through a network of secondary roads.
Geology & Mineralization
The Anillo de Fuego property is also located in the province of the Sierra Madre Oriental. Similar to Providencia, it is underlain by a series of Cretaceous sediments consisting of laminated and massive limestones and lutites. The range has a mostly moderate to rugged topographic relief.
There is no recorded occurrence of intrusive plugs or dikes in the area but the same stratigraphic sequence that hosts the Vallecillo mineralization is expected to be identified in the Anello del Fuego area. The favorable stratigraphy, in conjunction with the anticlinal structural high, offers an excellent target setting for both manto and chimney type silver and base metal mineralization.
History
Very little is known or documented on the historic mining and prospecting activities within the Anillo de Fuego area. Prospect pits and short shafts are evident throughout the project area. The real importance of historic mining activities in the area relates to the widespread nature of the mineralization as uncovered by the prospectors. Current exploration theory suggests that reconnaissance for silver and base metals in this type of carbonate terrain should be concentrated along the crest of anticlinal structures. The Spanish prospectors and miners in the area have literally defined the anticline by the identification of mineralization in a linear pattern.
Potential Exploration Work
The Anillo de Fuego lands were acquired as an advanced reconnaissance target region which hosts mineralization that is similar to that found at Vallecillo. While historic prospecting efforts uncovered minor mineralization in a number of pits, significant potential is recognized in that nearly all of the occurrences of mineralization are located directly on the crest of the anticline which makes up the 'backbone' of the range. From a geologic and exploration perspective, this alignment of prospects pits may represent leakage of more substantial mineralization which is concentrated along the highest structural part of the anticline. Favorable lithologic units at depth would constitute the main target horizons for this area.
The mineralization within Anillo de Fuego, while lesser in intensity that either Vallecillo or Iguana, is found along an extended area presenting a greater strike length of potential targets.
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