Tyler results show wider zone (June 25, 2007)

Further drill results from Tyler Resources’ (TYS-V, TYRRF-O) Bahuerachi copper-zinc deposit in Chihuahua state, Mexico, show that the previously inferred width of the deposit’s Main Zone may have been underestimated.

Three reverse-circulation drill holes into the middle of the Main Zone, in an area where recent resource calculations classed the mineralization as inferred, intersected 112 to 148 metres of mineralized porphyry. The resource calculation had gone on an expected width of slightly more than 50 metres.

Copper grades in those holes were around 0.4%, with about 3 grams silver per tonne, close to the resource grade. A recent resource calculation put the size of the deposit at 524 million tonnes grading 0.4% copper, 4 grams silver, 0.03 gram gold, 0.008% molybdenum and 0.57% zinc per tonne.

Two diamond-drill holes also cut long mineralized intersections in the Main Zone. DDH-118, near the middle of the Main porphyry, cut 292 metres grading 0.37% copper, 3 grams silver and 0.03 gram gold per tonne, with 0.006% molybdenum, mainly in porphyry but partly in the sedimentary country rock.

Hole 119, near the southern end of the Main porphyry, intersected 14 metres grading 3.02% copper, 10.4 grams silver and 0.06 gram gold per tonne, with 0.005% molybdenum and 0.29% zinc. That intersection was followed by a deeper zone 73 metres long that averaged 0.54% copper, 7.7 grams silver and 0.04 gram gold per tonne, plus 0.004% molybdenum and 0.31% zinc. That mineralization was largely in skarn surrounding the porphyry.