ITH Reports Multi-Million Ounce Inferred Gold Resource at Livengood Project, Alaska
Market Wire, February, 2008
Gold Characterization/Cyanide Leach Test Results
The Report describes the recent results of cyanide extraction tests carried out on selected samples by Hazen Research Inc. Samples were selected to represent variations in the grade, degree of oxidation and alteration style. The results show that the gold is readily recovered from the oxidized and partially oxidized ore types with lower recoveries from un-oxidized ores (Table 2). Further testing is in progress to determine the heap leach potential for the Livengood ore as well as additional testing of the un-oxidized ore to determine the optimum and most cost effective extraction method.
Table 2: Preliminary Cyanide Extraction Results(i)
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Average % Cyanide
Sample # Ore Type Grade (g/t) Extraction(i)
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1 Oxide Sediments 1.52 99.9%
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2 Oxide Sediments High-grade 10.80 96.9%
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3 Un-Oxidized Volcanic 1.52 59.7%
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4 Oxide Sediments 1.39 99.9%
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5 Un-Oxidized Volcanic 1.38 42.3%
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6 Weakly Oxidized Volcanic 1.06 90.2%
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1A Volcanic Un-Oxidized 2.30 60.9%
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(i) Samples were 300 gram bottle rolls with sample material crushed to
approx. 200 mesh and sampled every 8-10 hours for a total of 48 hours
Qualified Person and Quality Control/Quality Assurance
The work program at LMS was designed and is supervised by Dr. Russell Myers, Vice President of Exploration, Talon Gold (US) LLC (a wholly owned subsidiary of ITH responsible for carrying out the Company's exploration programs), who is responsible for all aspects of the work, including the quality control/quality assurance program. On-site personnel at the project photograph the core from each individual borehole prior to preparing the split core, which is then sealed and shipped to ALS Chemex for assay. ALS Chemex's quality system complies with the requirements for the International Standards ISO 9001:2000 and ISO 17025: 1999. Analytical accuracy and precision are monitored by the analysis of reagent blanks, reference material and replicate samples. Quality control is further assured by the use of international and in-house standards. Finally, representative blind duplicate samples are forwarded to ALS Chemex and an ISO compliant third party laboratory for additional quality control.
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