Tumi cuts 18.3 m of 3.1 g/t Au, 150 g/t Ag at La Trini
2005-09-29 09:56 ET - News Release
Mr. David Henstridge reports
TUMI RESOURCES REPORTS ENCOURAGING INITIAL DRILL RESULTS AT LA TRINI, MEXICO INCLUDING: 18.3 M AVERAGING 3.1 G/T AU AND 150 G/T AG IN TRRC 6
Tumi Resources Ltd. has released the drill assay results from the La Trini silver project, Jalisco state, Mexico. This first reverse-circulation drilling program yielded very encouraging results and demonstrated the potential for La Trini to contain a large, bulk-minable, open-pit silver deposit.
Surface, underground and drill evidence suggests that the rhyolite porphyry, hosting the disseminated silver-gold mineralization, is an intrusion rather than a volcanic. The rhyolite has been traced over a distance of one kilometre, and remains open to the west and down dip. Soil geochemical and induced polarization (IP) surveys have been very useful methods in tracing the favourable horizon where soil cover hides rock outcroppings. The data from the IP survey are currently being modelled and the results of this analysis will be reported when available.
Mr. Henstridge states: "The drill program revealed that the disseminated silver-gold mineralization lies within an intrusion and, therefore, its entire extent remains an exploration target. Our ongoing surface and geophysical programs will help in determining our next drill sites, as only a very small proportion of the rhyolite intrusion has been drill tested."
The company plans to extend the surface grid to the west to conduct further mapping, soil sampling and IP surveying once the rainy season has ended.
The qualified person for the La Trini project, Mr. Henstridge, a fellow of the Australian Institute of Mining and Metallurgy, and a member of the Australian Institute of Geoscientists, has visited the La Trini area and has verified the contents of this news.
Quality control
Drill samples were collected on 2.1-metre intervals. Each sample was split on site using a Jones splitter and stored for later use. The site geologist subsequently selected the intervals to be sampled, and the entire interval was run through the Jones splitter twice more to help with homogenization. One-half of this interval was split further to a nominal five-kilogram size and sent to LLACME Laboratory in Guadalajara where the samples were crushed and pulverized prior to shipment to IPL Laboratories, Vancouver, B.C. The rejects from all sample intervals split on site were saved. A duplicate five-kilogram sample from hole TRRC-10 was sent to ALS Chemex for cross-checking --the results obtained from both ALS Chemex and IPL compared extremely well. The company has continued a program of inserting sample standards as a means of checking on laboratory analytical reproducibility. Three different standards, with a range of gold and silver values, were randomly inserted in the sample series submitted to LLACME laboratory in Guadalajara. Silver analyses done by IPL Laboratories were determined using the ICP analytical method -- all results that yielded greater than 30 parts per million silver were reanalyzed using a gravimetric finish -- these are the results being reported. Gold was determined by the fire assay-atomic absorption finish method. Both IPL and ALS Chemex are ISO 9001:2000-certified laboratories.
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