お知らせ • Apr 08
Stellar Resources Limited Reports Further Drilling Results from the Queen Hill Deposit At Its Heemskirk Tin Project in Western Tasmania
Stellar Resources Limited reported further drilling results from the Queen Hill deposit at its Heemskirk Tin Project ("Heemskirk") in Western Tasmania. The program comprises a 24-hole (~9,500m) diamond drilling campaign focused on infill and extensions to the 2023 Mineral Resource Estimate (MRE)2. This release reports assay results from two holes drilled at Queen Hill (ZQ176 & ZQ174). Un usual commodities or sampling types (e.g. submarine nodules) may warrant disclosure of detailed information., The Zeehan Tin deposit has been delineated entirely by diamond drilling. Numerous drilling campaigns were completed between 1960 and 1992 by Placer, Gippsland, Minops, CRAE and Aberfoyle. Post 2010, diamond drilling was completed by Stellar with diamond core of nominally NQ or HQ diameter., Logged sulphide and siderite altered zones were selected for geochemical analysis., Approximately 1m samples of 2-3kg were taken from diamond saw cut drill core whilst respecting geological boundaries., Drilling Techniques, Drill type (e.g. core diameter, triple or standard tube, depth of diamond tails, face sampling bit or other type, where core is oriented and if so by what method, etc.), All drill sampling by standard wireline diamond drilling., Drill sample recovery, Method of recording and assessing core and chip sample recoveries and results assessed., Measures taken to maximize sample recovery and ensure representative nature of the samples., Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material, Core logging captured drilled recoveries and core loss., Recoveries generally excellent (95-100%) through mineralized sections., No bias based on recovery has been identified., In ZQ174 and ZQ176 reported in this release 0.2m and 0.3m respectively of core was lost within the reported intersection and documented immediately below the results table., Logging, Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies., Whether logging is qualitative or quantitative in nature. These should include, but not be limited to a plan view of drill collar locations and appropriate sectional views., See body of the announcement for relevant plan and sectional views., Balanced reporting, where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results, In general, mineralised zones above a Sn cut off of 0.4% and greater than 3.0m length or shorter intervals with a significant grade are included in the tables and figures associated with this report, however in some cases higher cut off grades have been used for selection of significant intervals., Other substantive exploration data, Other substantive exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey result; geochemical survey results; bulk samples - size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances., Metallurgical test work completed by ALS/BRL laboratories and supervised by Worley-Parsons over a number of different campaigns on drill core samples., Deposits have been zoned mineralogically and metallurgically, Cassiterite is the dominant tin-bearing mineral occurring as free grains and in complex mineral composites., Grain sizes vary according to ore type, with Severn having the coarsest and Upper Queen Hill.