TORONTO, ONTARIO -- (Marketwire) -- 02/25/13 -- Mammoth Resources Corp. (TSX VENTURE: MTH) is pleased to announce that it has received results from the X-Ray Diffraction (XRD) analysis performed on 72 samples collected on a portion of its 8,100 hectare Tenoriba project, located in southwestern Chihuahua State, Mexico. The XRD analysis identified the presence of numerous alteration minerals, which when combined with the presence of vuggy silica, silicic, advanced to intermediate argillic alteration, in rocks covering an approximate 15 square kilometer area, provide further compelling evidence that the Tenoriba project hosts a high-sulphidation precious metal target. The association of Kaolinite and Dickite in particular identifies almost complete acid attack of an advanced argillic alteration system, which is a compelling observation indicating a strong and active epithermal system. Refer to Figure 1. - Sample Location Map of XRD Samples, Tenoriba Project.
Mammoth President and CEO Thomas Atkins commented on the results from these samples, stating: "The XRD analysis has identified the presence of various alteration minerals throughout an approximate three by five kilometre area in the project. These minerals combined with the numerous surface samples containing gold and silver, the highest of which assayed 23.6 grams per tonne gold and 62.1 grams per tonne silver, provide further compelling evidence of a large, favourable, precious metal mineralized system at Tenoriba. The company looks forward to results of ongoing mapping and sampling on the property to help assist in better understanding controls to this mineralization as we advance the project towards the selection of targets to be drill tested later this year."
A total of 72 samples were collected and sent to Recursos Geosiences de Mexico S.A de C.V (RGM) in Hermosillo, Sonora State, Mexico for XRD analysis with Terraspec. Approximately half of the samples were analyzed in at least two and sometimes three places to identify the presence of different minerals, taking into account the presence of vein or veinlets and the alteration in the host rock, yielding a total of 104 spectral analysis. The XRD analysis confirms the field observations, that the approximately 15 square kilometre area of moderately to strongly argillic and weakly silicified Tertiary felsic volcanic rocks appear to represent the alteration footprint of a high-sulphidation epithermal mineralizing system.
Recent field work has also identified irregular, patchy, vuggy silica, often pyrite rich and anomalous in gold (greater than 0.1 grams per tonne gold) in outcrops and over areas of angular rock float. In addition, minor clay stringers were located in these same rocks. These alterations features were generally hosted by strongly to moderately argillic and frequently weakly to strongly silicified tertiary felsic volcanic rocks which are similar to the high-sulphidation epithermal systems responsible for Goldcorp's El Sauzal mine (approximately 2.0 million ounces of gold) and Alamos Gold's Mulatos mine (approximately 2.0 million ounces of gold ), located approximately 50 kilometres north, northeast and 300 kilometres northwest, respectively from the Tenoriba project.
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