109 0 Kommentare Imperial Acquires Mineral Claims Expanding its Sustut Property - Seite 2

The test results indicate that particle sorting could meaningfully improve the life of mine economics for the project. The sample tested had a grade of 1.12% copper and 4.33 g/t silver. The sorted product graded 1.86% copper and 5.62 g/t silver with 87.1% of the copper and 68% of the silver recovered into the sorted particle product. Sorting yielded a 66.1% upgrade from the feed grade for copper and a 29.7% upgrade from the feed grade for silver. The sorter rejects graded 0.30% copper and 2.91 g/t silver and contained 12.9% of the copper and 32% of the silver. ABH Engineering recommends that Selkirk move forward with further test work on XRT particle sorting on three to five larger samples ranging from low grade to high grade.

The Sustut copper deposit was acquired by Selkirk in 2007 when Selkirk acquired Doublestar Resources Ltd. Doublestar filed a 43-101 compliant report titled, “TECHNICAL REPORT Sustut Project, British Columbia”, dated October 8, 2004 and filed on SEDAR on October 25, 2004.

The Sustut historic resource description referenced in this news release is considered relevant because it demonstrates the potential viability of the project. The Company cautions readers that a Qualified Person has not done sufficient work to classify the historical estimate as current mineral resources or mineral reserves and the Company is not treating the historical estimate as current mineral resources or mineral reserves. The Company does, however, believe the work was done to 43-101 standards at that time. To support the report, three of the more important older holes from Falconbridge were twinned with good agreement. The newer drilling, sample preparation and analyses were completed with a QA/QC program and conformed with industry standards. This program included duplicate samples, blanks, and standards in the assays. The rate at which these were inserted was approximately one per analytical batch. Results of duplicates, blanks and standards provided were satisfactory. The specific gravity of 2.85 used in the resource modelling was from lab work at Bondar-Clegg using 74 samples.

The following Sustut historic resource description is included in that report:


Doublestar Resources Ltd. - Sustut Copper Project
Mineral Resource Summary at 0.65% Copper Cutoff
	Cu Cutoff	Mineralised	Cu	Cu	Cu
Category	Grade (%)	Tonnes	Grade (%)	Tonnes	Pounds
Southeast Zone
measured	0.65%	3,859,000	1.81	69,900	154,102,938
indicated	0.65%	1,638,000	1.78	29,200	64,374,904
Subtotal	0.65%	5,497,000	1.80	99,100	218,477,842
Southwest Zone
measured	0.65%	1,358,000	1.32	17,900	39,462,698
indicated	0.65%	1,385,000	1.22	16,900	37,258,078
Subtotal	0.65%	2,743,000	1.27	34,800	76,720,776
Total at 0.65% Copper Cutoff Grade
measured	0.65%	5,217,000	1.68	87,800	193,565,636
indicated	0.65%	3,023,000	1.53	46,100	101,632,982
Total	0.65%	8,240,000	1.63	133,900	295,198,618

The reports resource estimate was based on the classification system defined by the CIM Standards On Mineral Resources and Reserves, Definitions and Guidelines, adopted by the CIM council on August 20, 2000. The resource was assigned a confidence category classification based on the distance from the block centroid to the nearest copper composite value within the search ellipsoid. Measured resources were considered 0 to 25 metres, indicated resource from 25 to 50 metres. Density factor of 2.85 tonnes per cubic-metre was used for all rock types.