Gammon Lake Resources Inc -
Santa Maria sampling results
Gammon Lake Resources Inc GAMLShares issued 8,054,8791998-10-08 close $1.4Tuesday Oct 13 1998Mr. Fred George reports Gammon Lake has received independent metallurgical tests on a small bulk sample from its Santa Maria, Mexico property. During fieldwork a 20 kg sample of material, sample S-5, from the high grade Main zone of the claim was taken. The metallurgical work was performed at the Mineral Engineering Laboratory of Dalhousie University in Halifax, Nova Scotia. This material was submitted for metallurgical testing which included cyanide leach, flotation and gravity separation techniques. These tests were conducted in order to determine the quantity and nature of the gold and silver enrichment and their susceptibility to concentration by different techniques. This preliminary metallurgical work has produced a 87.2 per cent recovery rate of gold from flotation, the grade being 21.64 g/t gold and an 88.3 per cent recovery rate for silver, the grade being 767 g/t silver. The results of table tests show lower recovery rates of 46.7 per cent for gold and 24.6 per cent for silver. Cyanidation extracted 74.6 per cent of the gold and 64.6 per cent of the silver. Although testing was completed on a small sample size, management is encouraged by the stated flotation recovery rates. Further work is under way to examine optimization methods that should improve on the presently attained rates. Earlier work carried out by Gammon personnel and an independent geological consultant firm, Mercator Geological Services of Dartmouth, Nova Scotia, included an extensive mapping and sampling program on the Santa Maria and La Cuesta properties. The consultant oversaw all aspects of the fieldwork on both properties and accompanied the samples collected to the Hermosillo office of Chemex Labs where they were analyzed using conventional fire assay. At the Santa Maria property, the program concentrated on the Main zone and was successful in outlining a gold and silver enriched quartz/feldspar stockwork system. The subvertical zone as presently mapped varies between 3.5m and 7.0m wide and strikes east-west over 150m. Thirty channel samples with a sample width of 0.5m were cut using a rock saw. The average grades for these were 2.4 g/t gold and 127 g/t silver. Individual samples assayed as high as 7.4 g/t gold and 883.0 g/t silver. Intervals calculated from these samples were 3.5 g/t gold and 194 g/t silver over 3.5m, 3.2 g/t gold and 181 g/t silver over 3.5m and 3.3 g/t gold and 140.1 g/t silver over 2m. The west of the Main zone was tested by continuous chip sample across the stockwork veins. Seven samples using a 1m length were taken providing an interval of 1.73 g/t gold and 52.7 g/t silver over the 7m. The main zone is open to depth and vertical extent of 100m is visible in the nearly vertical canyon wall. Three hundred metres to the west of the Santa Maria Main zone the Gauchupine zone is believed to be an extension of the Main zone. At this location a 30m long audit follows a quartz/feldspar stockwork zone where 23 grab samples averaged 1.8 g/t gold and 233 g/t silver. This zone is open to depth and along strike both east and west. Results from Gammon's nearby La Cuesta property have also returned encouraging results. Here a 1.5m thick flat lying quartz vein with its associated altered wall rock indicate a gold and silver enriched zone up to 8 m wide that has been traced along strike for up to 500m. Nine samples collected along this zone averaged 1.0 g/t gold and 100.3 g/t silver. A tenth sample assayed 46.6 g/t gold and 2,180 g/t silver. The consultant's report stated that the Santa Maria property offers excellent potential for the development of significant amounts of high grade gold and silver mineralization. Diamond drilling of the Main zone mineralization to test the downdip extension of the zone is also recommended. Significant potential also exists to increase the strike and dip extent of the high grade intercepts at the Main zone with limited number of drill holes. The consultant's report also states that the additional investigations are necessary in order to fully evaluate the extent of mineralization at the La Cuesta property. The gold and silver values returned from mineralized host volcanics suggest excellent potential for the development of a larger mineralized zone. |
