TORONTO, ONTARIO--(Marketwire - Sept. 19, 2011) - Tawsho Mining Inc. (TSX VENTURE:TAW), www.tawshoming.ca, today announced it has received final analytical results from Eastern Analytical Laboratories, NL, for core samples selected from drill holes WK11-07, WK11-09, WK11-10 and WK11-11 that were recently completed on its Whisker Valley Property in Northern Newfoundland See previous news release dated 22 August 2011).
"Seven of the twelve holes located on the basis of geophysical data (magnetic and IP chargeability/resistivity) intersected narrow quartz veins bearing gold mineralization. The overall results are encouraging as they support Tawsho Mining Inc's metallogenic understanding of the region being explored. The presence of local high grades indicating the presence of free gold is especially encouraging and confirms a gold laden mineralizing system in the area. Three sub areas have been identified and will be the focus for an ongoing exploration and surface activity beginning later this month and a step-out drilling program continuing into the new year," stated Dr. Michael Avedesian CEO.
The results tabled below include additional metallic sieve fire assay analysis with AA finish that were completed on additional duplicate sample material re-submitted for samples that had initially assayed greater than 1 g/t (tonne) gold. The results are reported in Table 1.
Table 1: Golds Assays - Whisker Valley Property - 2011
|Selected assays having values greater than 1 g/tonne|
|DDH Number||From||To||Interval||Fire||Fire Assay||Duplicate sieve-fire|
|Assay||Lab Dupl||assay on Reject|
|(m)||(m)||Au g/t||Au g/t||Au g/t|
True width for drill intercepts was not known.
All four holes were drilled to test geophysical anomalies that had been identified on the property. Hole WK11-07 was drilled approximately 100 m west of hole WK11-08 which had significant gold intersections reported earlier (press release dated 22 August 2011). Several narrow mineralized veins and/or high alterations were recognized in the hole with assays varying from 1.02 gpt (0.03 oz/ton) over a core interval of 0.1 m to 13.99 gpt (.41 oz/ton) over a core interval of 0.5 m. Most veins occur adjacent to intrusive contacts or within shear zones and vary between 0.1 and 0.5 m core length with an average value of 0.3m, Hole WK11-09 although intersecting shear zones and fault breccia, remained relatively unaltered by hydrothermal activity. The vein samples were barren. Hole WKS11-10 was drilled to intersect the deeper levels of Road Showing gold which had been sampled at surface and drilled by several short holes during the 2010 drill campaign. At the end of the hole, two intersection each over 0.5 m core interval contained 1.1 and 2.2 gpt. The core contained numerous brecciated and vuggy silicified intervals but did not appear to intersect the main veins located at the Road Showing. The hole was stopped short of planned depth due to loss of water and other technical difficulties.
The surface area in the vicinity of: i) holes WK11-07 and WK11-08 (Area A), ii) in the vicinity of the Gold Pit and possibly iii) in the vicinity of hole WK11-06 towards the Kruger showing (time permitting) will be mapped in detail and in each block, an area will be identified and selected for surface stripping of unconsolidated material to expose bed- rock and the mineralization projected to occur at surface. The outcrop will be washed and the vein structures and alteration patterns accompanying gold mineralization will be mapped in detail. These structural and geological data will be used to plan the location and direction of the step-out drill holes within each of the blocks. The drill program will proceed in two stages: the first ten step-out drill holes, each approximately 300m in length, will be drilled i) to spatially extend known intersections of gold mineralization and ii) to determine the structural orientation of the mineralized structure. The second phase of the drill program, almost immediately following the first phase will concentrate drilling activity to better define the geometry and grade distribution of the most promising block of gold mineralization and to test two additional targets recently identified on the property.
Quality Assurance/Quality Control:
Tawsho Mining Inc. is implementing the standard QA/QC protocol for its exploration and diamond drilling of its Whisker Valley Project by the drilling contractor Baker's Construction Ltd of Baie Verte NL. NQ core size has been used to provide adequate sample size for each sample being submitted for analysis and if necessary to enable the possibility for undertaking additional petrographic and step-down sampling if required. In the field, core was picked up by one of Tawsho's designated personnel or the driller and transported to a secure Core Shack. During logging, in addition to noting core recovery parameters, geologic attributes including lithology, alteration, quartz veining, presence and identification of sulfide and oxide mineralization along with other geologic parameters normally associated with mineralization were noted and recorded. Core intervals are marked on basis of selected geological parameters, and those intervals showing veining or mineralogical characteristics that may be indicative of mineralization are selected for splitting and assaying. Prior to splitting, all core was photographed and individual sample intervals submitted for analysis were photographed in more detail. Core splitting is done with a diamond core saw and ½ of the drill core is submitted to Eastern Analytical Laboratory in Springfield, NL. The remainder of the core is stored on the grounds of Barker's Construction Ltd. adjacent to the Core Shack.
Conventional fire assay sample preparation consists of crushing the selected core sample such that 75% crushed material passes -10 mesh (2 mm) screen and which is split to a 300 gram sample that is pulverized so that plus 90% of the sample (pulp) passes 200 mesh (.075mm). From this pulverized sample a 30 gram sample is taken for standard fire assay for gold with AA finish. Samples returning gold values over 1 ppm are resubmitted for fire assay with gravimetric finish. Following completion of fire assaying, 30 g of the pulp samples are geochemically analyzed for multi-elements using 4-acid digestion followed by ICP analysis with OES finish (Inductively coupled plasma optical emission spectroscopy). Tawsho Mining also inserts gold standard samples, blank samples and duplicate samples into the sample stream at a rate approximating 10% of total original samples. Samples are normally transported by a Tawsho employee by truck from the Property to the analytical laboratory. Chain of custody protocols require signatures and the maintenance of logs and receipts each time the samples are picked up from or delivered to a new location. When utilizing commercial transportation, all shipping sacks are sealed with a numbered tag, the removal of which is recorded upon receipt by Eastern Analytical Laboratory Inc. Check analyses are conducted on a regular basis by resubmitting the crushed reject as a separate duplicate sample to Eastern Laboratory.
All sample intervals where free gold is visually observed are automatically submitted for fire assay analysis using the metallic screen finish. The screen +150 mesh screen oversize portion is assayed in total and the screen undersize is fire assayed in duplicate using a gravimetric finish. All other samples are analyzed by conventional fire assay using a 30 gram sample with ICP-AES finish.
This press release was prepared by Edward Procyshyn P. Geo., who is the qualified person as defined by NI 43-101 and Francoise Gagnon, Eng. Tawsho's field geologist and also a qualified person, and reviewed by Dr. Michael M. Avedesian P.Eng.
ABOUT TAWSHO MINING INC:
Tawsho is a mining exploration company focused on the acquisition, exploration and development of gold resources and advanced stage gold exploration projects. The Corporation is presently developing its Chevrier project ( comprised of 557 claims, covering an area of 9542 hectares, or 95.4 sq. km) in the Chibougamau region of Quebec and its Whisker Valley project( comprised of 913 claims, covering an area of 21,875 hectares, or 218.8 sq. km) in Baie Verte, Newfoundland. Tawsho currently has approximately 22 Million shares outstanding.
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