|February 20, 2014|
Mammoth Posts Technical Report - Tenoriba Property On Company Web Site, Recommends Drilling Geophysics Targets And Continued Metallurgical Testing
|Toronto, Canada (February 20, 2014) - Mammoth Resources Corp. (TSX-V: MTH) is pleased to announce that it has posted a technical report summarizing historical and recent work performed on its Tenoriba Property, located in the prolific Sierra Madre precious metal belt in south western Chihuahua state, Mexico (refer to the company's web site www.mammothresources.ca, for a detailed location map). The technical report provides a review of all known historical work performed on the property and all work performed by Mammoth Resources until the end of 2013. The report recommends drilling geophysical targets and continuing metallurgical testing of precious metal enriched cyanide leachable material on the property.|
Thomas Atkins, President and CEO of Mammoth Resources commented on the report, stating: "It's clear to us, as we compile all of the information that has gone into this report, that we have a large 15 square kilometre area of enriched gold and silver mineralization occurring at Tenoriba. The combination of the precious metals, with various geochemical relationships with gold and silver mineralization from over 600 samples analyzed by Mammoth and at least an equal amount by its predecessors, that we are in a relatively shallow elevation, high sulphidation, epithermal system. The implications of the shallow system are that we believe there's excellent potential to intersect intriguingly precious metal mineralized rocks at depth similar to what was previously intersected in drilling performed in 2008. The recently completed geophysics program, although the results are not covered in this report, has provided some terrific drill targets. We're currently defining these drill locations and expect to report on these targets and details of a drill program, shortly."
Summary of the Findings of the Technical Report
A field work program was conducted on the Tenoriba property during 2012 and 2013 by Recursos Mineros Mamut S.A. de C.V. (100% owned Mexican subsidiary company of Mammoth Resources Corporation). The results of this work are combined with historical data generated by Masuparia Gold Corp., from work performed in 2007 and 2008, including diamond drill results from 15 drill holes drilled in 2008. Mamut geologists began a field mapping and sampling campaign in October 2012. As at the date of writing of the report a total of 628 rock surface samples, 10 bulk leachable gold (BLEG) type stream sediment samples and 100 Terraspec samples have been collected and analysed by ASL CHEMEX LAB with sample preparation performed in Chihuahua, Chihuahua state Mexico and the pulps assayed in Vancouver, Canada. Specific details of the analysis and QA/QC measures taken in such analysis, are provided in the report. The report was authored by Richard Simpson, Mammoth's Vice President Exploration and the company's Qualified Person. Except for the lack of independence from Mammoth, which Mr. Simpson holds as a result of his position with the company, the company believes the technical report would conform to NI-43-101 quality standards.
Field work during the period covered by the report identified property geology dominated by the Late Cretaceous/Tertiary aged felsic volcanic rocks of the Sierra Madre Occidental, dominantly underlain by felsic volcanic rocks of Tertiary age, consisting of felsic volcaniclastic rocks (tuffs, Ignimbrites, volcanic breccias), which are intruded by granodioritic to dioritic composition intrusive bodies. Small felsic and intermediary dykes have also been noticed but generally their locations have not been mapped in detail.
Specific target areas identified to date within this large 15 square kilometre precious metal (gold and silver) mineralized area include, from west to east: Cerro Colorado, El Moreno, Masuparia area and Los Carneritos. These target areas can be described mainly as shallow high sulphidation epithermal targets hosted by a highly altered (argillic and silica alteration) upper volcanic sequence. The mineralization is closely associated to the silica alteration, including local vuggy silica and clay minerals associated with mineralization, including: dickite, kaolinite, illite and halloysite. Only minor sulphide has been identified on surface. East-northeast to almost east-west, plus northeast, northwest and almost north striking and generally steeply dipping normal faults are the main interpreted ore controls. On the periphery of these priority areas, and generally beyond the 15 square kilometre area of enriched precious metal mineralization, additional, lesser explored targets include: Arroyo Verde, La Verde, Rincon Colorado and the area of La Quemada where polymetallic enriched viens are noted.
Although company geologists have divided the target areas into separate targets for ease of identification, there is nothing evidenced on surface, in the stratigraphy or lithologies in which these targets exist, that would suggest that these target areas are not connected at depth, having only been separated either by faulting or simply a lack of outcrop evidencing their relationship one to the other.
In addition to elevated and ubiquitous occurrences of gold and silver there are a number of compelling characteristics to the rocks sampled that are commonly associated with high sulphidation epithermal precious metal systems. These characteristics occur in strong association with stratigraphic controls to mineralization. These associations are the most compelling evidence that the Tenoriba targets are part of a shallow elevation, high sulphidation epithermal mineralizing system. The shallow elevation of the system observed on surface implies that feeder systems, responsible for precious metal enrichment to this shallow system mapped and sampled on surface, could occur at depth.
Characteristics observed from the surface mapping and sampling that are common in high sulphidation systems, include:
The potential within the 15 square kilometre area of elevated and ubiquitous gold and silver to host a large precious metal deposit is compelling given the abundance of precious metals sampled within this large surface area.
Beyond mapping the geology and structures on the property and sampling many potential occurrences of precious metals, geologists also investigated some of the metallurgical characteristics of these rocks. The objective in studying the metallurgical characteristics was to gain some knowledge of the potential processes available for the extraction of these precious metals should the mineral resource be shown to contain a sufficient amount and concentration of precious metal to warrant their recovery and to help guide stages of future exploration.
Given the abundance of gold on the surface, it is logical to consider that it may be possible to mine the precious metals via an open pit which in combination with heap leach precious metal extraction and recovery, could have the potential for a low capital and operating cost type operation. Understanding this potential early in the exploration process could have implications for how to most efficiently explore the property and possibly develop precious metal resources (drill hole spacing, grade of potentially significant drill hole intersections).
Preliminary petrographic work on some select drill core intervals demonstrated the presence of free gold on the periphery of sulphide grains and within fractures in these sulphide grains, illustrating the 'free' nature of gold in these occurrences. The presence of free gold that is amenable to cyanide leaching was further illustrated as Mamut geologists conducted an in-depth sampling of various core intervals at a variety of depths and grades, plus various samples collected from surface. Agitated cyanide leach bottle roll tests of these samples resulted in high, often rapid (often in less than 12 hours), recoveries of precious metals (often greater than 90 percent recovery) to vertical depths of as much as 60 metres, with the occasional, high recoveries (generally below 70 percent) at greater depths and requiring greater time (up to 72 hours).
These results bode well for precious metal recovery in a cyanide leach-type setting such as a heap leach operation.
Recommendations for future work include:
Qualified Person / Quality Controls:
Richard Simpson, P.Geo., Vice-President Exploration for Mammoth Resources Corp. is Mammoth's Qualified Person, according to National Instrument 43-101, for the Tenoriba property and is the author of this technical report.
About Mammoth Resources:
Mammoth Resources (TSX-V: MTH) is a mineral exploration company focused on acquiring and defining precious metal resources in Mexico and other attractive mining friendly jurisdictions in the Americas. The Company has an option to acquire 100% in the Tenoriba Property located in the Sierra Madre Precious Metal Belt in southwestern Chihuahua State, Mexico. The company continues to seek other option agreements in the Americas on other properties it deems to host above average potential for economic concentrations of precious metals mineralization.
To find out more about Mammoth Resources and to sign up to receive future press releases, please visit the company's website at www.mammothresources.ca.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Forward Looking Information: This news release may contain or refer to forward-looking information. All information other than statements of historical fact that address activities, events or developments that the Company believes, expects or anticipates will or may occur in the future are forward-looking statements; examples include the listing of its shares on a stock exchange and establishing mineral resources. These forward-looking statements are subject to a variety of risks and uncertainties beyond the Company's ability to control or predict that may cause actual events or results to differ materially from those discussed in such forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made and, except as may be required by applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise. Although the Company believes that the assumptions inherent in the forward-looking statements are reasonable, forward-looking statements are not guarantees of future performance and, accordingly, undue reliance should not be placed on these forward-looking statements due to the inherent uncertainty therein.
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