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American Lithium Announces Maiden Pit-Constrained Mineral Resource of 5.37 Million Tonnes Lithium Carbonate Equivalent Measured21.05.2020 | 15:00 Uhr | GlobeNewswire
And Indicated and 1.76 Million Tonnes Inferred
Highlights Maiden pit-constrained Resource (at 400 ppm cut-off) of 1.107 billion tonnes Measured and Indicated (“M+I”) plus 362 Mt Inferred containing 5.37 million tonnes Lithium Carbonate Equivalent (“LCE”) M+I and 1.76 million tonnes LCE Inferred. The following table is a summary of pit constrained Li at various cut-offs: Table 1: Summary of the TLC Pit Constrained Resource
Michael Kobler, CEO of American Lithium, states “We are extremely excited with these results as they confirm the real scale of this project. We now plan to complete more metallurgical work and process testing, followed by an economic evaluation in the form of a prefeasibility study.” Key Features and Advantages Management emphasizes the following significant advantages to American Lithium’s TLC Property:
Maiden Resource Calculation A base case lithium resource cut-off grade has been determined based on the economics of a medium size (100 Mtpa) run-of-mine (ROM) surface mining operation that does not require blasting. An economic pit shell at a constant 45 degrees slope was developed with a resultant ultimate pit extended to a maximum vertical depth of 500 ft (152 m). Processing of the ore would be onsite extracting lithium from claystone using an acid digestion method. The following costs, processing costs, and recovery, in metric units and US$, were used to derive a base case cut-off grade for an eventual LCE (Li2CO3) product:
No royalties have been factored in these estimates of costs and taxes are expected to be absorbed in the processing costs at approximately US$1/tonne. Revenue from an LCE product is estimated to be US$10,000/tonne for the cut-off grade calculation. Using the above inputs and Li2CO3:Li ratio of 5.32, a base case cut-off grade for lithium is estimated to be 400 ppm, rounded up from 376 ppm. An alternative product to lithium carbonate that could be produced from the resource is lithium hydroxide monohydrate (LiOH.H20 or “LiOH”) that sells at a slightly higher premium than lithium carbonate and has the benefit of a higher LiOH?H2O:Li ratio at 6.05 when compared with the Li2CO3:Li ratio of 5.32. All lithium resources on the TLC Property are surface mineable at a stripping ratio of 1.0 waste yd3/ton (0.8 m3/tonne) at the base case cut-off grade of 400 ppm lithium. A fixed density of 1.70 g/cm3 (1.43 tons/yd3) is applied. Mineral Processing and Metallurgical Testing Indicative metallurgical testing was performed on a representative array of core samples selected from the TLC Property drill holes, which included TLC-1901, -1917, -1918, -1919, and -1921. These metallurgical tests were completed by McClelland Laboratories Inc., in Sparks, Nevada. Samples were first assayed for lithium by four acid digestion with an inductively coupled plasma finish. Average Li grades of the samples ranged from 1,060 to 1,270 ppm Li. Of the samples analysed, deleterious elements were not present in appreciable concentrations. Indicative agitated leach tests, which are a style of direct acid leach, show that over 90% of the lithium can be extracted in less than 10 minutes using acid leaching only. Table 2 shows the results from an agitated leach test with measurements taken at 10, 20, and 30 minutes. All measurements reported lithium extractions of greater than 90%. Table 2: Agitated Leach Test Results
The results in Table 2 show that no roasting/calcining of the ore is required to efficiently extract the lithium and process it as LiOH or LCE. In general, TLC lithium claystone is consistently highly leachable throughout the project with leach times comparing very favourably with other claystone projects. The Resource estimate is based on 28 drill holes completed by American Lithium in 2019 and 2020, all of which contained lithium. The Resource estimate is presented in the Technical Report prepared by Stantec in accordance with the requirements of National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”), which will be available on SEDAR (www.sedar.com) under the Company’s profile within 45 days. Please watch our corporate video at https://www.americanlithiumcorp.com/our-company/ and review our informative short project update videos and related background information at https://www.americanlithiumcorp.com/projects/tlc-nevada/. About the TLC Property The TLC sedimentary lithium discovery is an exploration and development project located 12 kilometres northwest of Tonopah, Nev., and easily accessible by paved highway. The fieldwork and engineering to date indicates a near-surface, relatively flat-lying, free digging lithium sedimentary resource. Just south of the Crescent Dunes solar energy plant, the 1664 ha (4,111 acre) project is favourably located for future production given the immediate access to some of the cheapest electricity in Nevada. About American Lithium Corp. American Lithium is actively engaged in the acquisition, exploration and development of lithium deposits within mining-friendly jurisdictions throughout the Americas. The company is currently exploring and developing the TLC project located in the highly prospective Esmeralda lithium district in Nevada. TLC is close to infrastructure, 3.5 hours south of the Tesla Gigafactory, and in the same basinal environment as Albemarle's Silver Peak lithium mine and several advancing deposits and resources, including Ioneer Ltd.'s (formerly Global Geoscience) Rhyolite Ridge and Cypress Development Corp.'s Clayton Valley project. Qualified Persons Derek Loveday, P.Geo. and William A Turner, P.Geol. are the Independent Qualified Persons who prepared the Technical Report and are independent as defined by Section 1.5 of NI 43-101. The metallurgical testing information reported herein was reviewed by Jared Olson, Metallurgist and VP Operations McClelland Labs, a qualified person under National Instrument 43-101. McClelland is IAS Accredited laboratory and holds Nevada State certification number NV-00933. The technical information within this news release has been reviewed and approved by Bruce Kienlen, P.Geo., a consultant to the Company and a qualified person under NI 43-101. For more information, please contact the Company at info@americanlithiumcorp.com or visit our website at www.americanlithiumcorp.com. Follow us on Facebook, Twitter and LinkedIn. On behalf of the Board, Michael Kobler, Chief Executive Officer Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. Forward-looking statements Dieser Artikel stammt von Rohstoff-Welt.de
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