![]() Sinter is a formation of opaline silica deposited in a hotspring environment at surface. Surface expressions can include geochemical path finder halo's, thin discontinuous quartz carbonate veinlets, and low temperature chalcedonic silica and sinter ( Figure 2 ). The vein systems at Fresnillo are most frequently "blind", meaning they do not outcrop, and the tops of the orebodies are concealed to a depth of approximately 150m and deeper. Target ModelĬhimney bodies at Fresnillo are often cylindrical shaped brecciated pipes that crosscut the cretaceous volcano sedimentary host units and predate or are contemporaneous with silver, gold and base metal veins. A pre-existing lease agreement that allows for exploration has been signed with the local community. The ground is flat and has easy access to all areas via farm tracks. The Tropico property is located 1 km off the paved national highway route 45 between Fresnillo and Durango. The Tropico Target is located 30 km northwest of Fresnillo city, Zacatecas, Mexico (see Figure 1 "Tropico location"). Radius currently has two rigs on the property with drilling advancing holes 2 and 3 following the initial hole 1 (See news release, October 4, 2023).Waihi - New Zealand, Lihir - PNG, McLaughlin - USA). Famous examples of epithermal gold and silver mines located below sinter deposits, both within the Fresnillo district and globally (e.g.Sinter is typically very low grade or barren in precious metal content but can be the surface indication of a mineralized system at depth.Assays in 2023 included significant gold values in rock chip samples from a sinter system.Defined by surface mapping and geochemical sampling.Tropico is a sinter and silicified breccia with a strong gold and mercury geochemical signature and is highway accessible:.In 2005 MAG Silver and Fresnillo plc discovered Juanicipio with the Bonanza zone containing indicated resources 8Mt at 550g/t Ag, 1.95 g/t Au & 4.6% Zn+Pb*, entered into production in 2021, and is one of the world’s highest grade and largest primary silver (plus gold) development projects 2.The district has over 150 veins, mantos and chimney deposits including over 30 large scale ore producers and continues to produce new discoveries.Tropico is located in same host rocks as the major mines of the Fresnillio mining district– one of the world’s largest epithermal systems with estimated production to date of +3 billion ounces of silver plus gold, copper, lead, and zinc.The Tropico target has not been previously drill tested and has every indication for the potential to make a great gold discovery: Radius has entered into an option agreement with local claim owners to acquire 100% of the property 1. The Tropico Project is a gold mineralized “hot spring type” sinter and silicified breccia target, located within the world’s largest silver (plus gold) mining camp, the Fresnillo mining district in Zacatecas, Mexico. Radius Gold commenced its diamond drilling program at its Tropico project in September 2023 as part of a planned 2000m maiden drill program. Tropico: Located in the Fresnillo District - World's Largest Silver Mining Camp
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