Windarra drills 4.45 g/t Au over 3.06 m at Pukaskw
Windarra drills 4.45 g/t Au over 3.06 m at Pukaskwa
2007-10-26 11:50 MT - News Release
Mr. John Pallot reports
COMPLETE RESULTS FOR DIAMOND DRILLING OF WINDARRA'S PUKASKWA PROPERTY DEMONSTRATE EXCELLENT CONTINUITY AND SIGNIFICANT GRADES FOR THE MIDDLE FINGER LAKE ZONE
Windarra Minerals Ltd. has released the results of the final nine diamond drill holes of a 14-hole, 824-metre drill program on its wholly owned Pukaskwa property in the Marathon-Wawa area of Northwestern Ontario. All of the holes intersected the mineralized zone (see the table herein). The best intersections include 3.44 grams per tonne (0.10 ounce per ton) gold over 3.90 metres in hole PK07-06, 3.78 g/t (0.11 ounce per ton) gold over 2.87 metres in hole PK07-12, 4.45 g/t (0.13 ounce per ton) gold over 3.06 metres in hole PK07-13 and 3.06 g/t (0.089 ounce per ton) gold over 1.99 metres in hole PK07-14. The results for the first five holes, which averaged 6.53 g/t (0.191 ounce per ton) gold over 3.87 metres, were reported in Stockwatch news on July 26, 2007.
MIDDLE FINGER LAKE ZONE DIAMOND DRILL HOLE INTERSECTIONS Drill hole Angle From To Interval Au (g/t) Au (oz/t) PK07-06 -75 6.00 21.09 15.09 0.91 0.03 including 11.50 15.40 3.90 3.44 0.10 PK07-07 -45 11.00 17.20 6.20 0.15 0.004 PK07-08 -75 9.00 10.50 1.50 0.32 0.009 PK07-09 -45 50.05 51.48 1.43 0.10 0.003 PK07-10 -75 51.11 53.30 2.19 1.17 0.03 including 48.00 53.30 5.30 0.52 0.01 PK07-11 -45 34.45 39.00 4.55 0.43 0.01 PK07-12 -75 34.63 37.50 2.87 3.78 0.11 including 33.00 38.50 5.50 2.09 0.06 PK07-13 -48 20.54 23.60 3.06 4.45 0.13 including 17.55 26.60 9.05 1.63 0.05 PK07-14 -75 20.03 22.02 1.99 3.06 0.09 including 19.49 26.75 7.26 1.18 0.03
The drilling, undertaken in early to mid-June, tested a zone exposed in an earlier trenching program (see Stockwatch news on April 5, 2006, and July 25, 2006). In the trenches, five channel samples across the zone yielded an average gold grade of between five and six g/t across nearly six metres. It was this work, along with geophysical and geochemical surveys, which suggested the sizable near-surface potential of the zone. The drill program has so far tested only a very limited strike length of the gold mineralization, which remains open along trend to the west and at depth. To the east, holes PK07-07 and PK07-08 intersected the zone but yielded only low-grade values. However, the soil geochemical and geophysical signature (induced polarization (IP) chargeability) of the zone continues, and so it clearly merits further testing. Together, the drill and channel sample intersections reported herein and in previous news releases, yield significant intersections across a variety of minable widths in the Middle Finger Lake zone, confirming that it has the potential to host a significant tonnage of near-surface gold mineralization on the Pukaskwa property. The property also has significant potential to host narrower but much higher-grade mineralization, as is evidenced in the Bonanza-grade zone (see news as reported in Stockwatch on July 25, 2006, and July 25, 2005).
The aim of this small-scale drill program was to test the down-dip potential of the Middle Finger Lake zone and its coincident geochemical and geophysical (IP chargeability anomalies) in the immediate vicinity of the Middle Finger Lake zone trench. The zone is otherwise poorly exposed, and the program has therefore tested only a very limited portion of the coincident anomalies, which can be traced continuously from the area of trenching for nearly a kilometre along strike, and which are paralleled by anomalous zones of broadly similar character to the southwest and northeast. The drill sections clearly indicate that the zone has down-dip and along-strike continuity, and they suggest that the zone may pinch and swell somewhat, with the thicker and higher-grade part of the zone drilled to date exhibiting a westerly plunge.
MIDDLE FINGER LAKE ZONE DIAMOND DRILL HOLE INTERSECTIONS (recalculation of holes released on July 26, 2007) Drill hole Angle From To Interval Au (g/t) Au (oz/t) PK07-01 -50 9.76 16.31 6.55 4.16 0.121 including 11.43 14.23 2.80 8.78 0.256 including 11.43 12.54 1.11 15.87 0.463 PK07-02 -65 9.25 18.29 9.04 3.41 0.100 including 11.25 14.49 3.24 9.37 0.274 including 11.25 12.75 1.50 11.78 0.344 PK07-03 -55 12.00 32.50 20.50 1.07 0.031 including 27.10 29.80 2.70 4.48 0.131 PK07-04 -75 10.85 24.00 13.15 3.14 0.092 including 16.80 20.70 3.90 7.25 0.212 PK07-05 -45 3.90 20.00 16.10 1.49 0.044 including 11.47 14.43 2.96 7.40 0.216
Mineralization at the Middle Finger Lake zone consists of variably sulphide-infused well-foliated fine-grained quartzofeldspathic metasedimentary rocks. The sulphide-rich zones are typically cored by decimetre-scale boudinaged quartz-carbonate-tourmaline veins, with which the most abundant sulphides and the best gold grades are closely associated. The veins are richer in quartz toward the centre, and the quartz is intergrown with calcite. Calcite increases in proportion toward the vein margins, and there it occurs in close association with tourmaline and with sulphides. Pyrrhotite is typically the most abundant overall sulphide in the zones, and is commonly intimately intergrown with tourmaline near vein margins. Gold grades appear to be most closely associated with arsenopyrite, which is typically most abundant in the immediate selvages of the quartz-carbonate-tourmaline (pyrrhotite) veins. Local pyrite and chalcopyrite are also present, and the host rocks are strongly chlorite- and sericite-altered, as well as locally intensely veined by foliaform calcite veinlets. The mineralizing event appears to be prekinematic.
Future work
Windarra plans to further drill test the Middle Finger Lake zone, with the initial focus being west-southwest along trend from the present holes, where IP chargeability and gold- and arsenic-in-soil geochemical signatures are highly anomalous. Windarra also plans to drill test the Bonanza-grade zone, which has not yet been drilled, as well as other targets on the property. Prior to drilling the Bonanza-grade zone, the intent is to strip the area of strongly anomalous soil geochemistry eastward along strike of the zone, mainly to provide geologic control for drilling in that area.
The Pukaskwa property is located 50 kilometres west of Wawa, Ont., less than 20 kilometres northwest of Wesdome's Eagle River mine, which has produced approximately 600,000 ounces gold since 1995. The property, which consists of a belt of 55 contiguous unpatented mining claims spanning a length of over 13 kilometres, also lies 20 km southwest of the formerly producing Magnacon mine, in which Windarra holds an interest. Like the Pukaskwa property, the Magnacon properties lie along the highly prospective Mishibishu gold belt.
The field and analytical data described in this release have been reviewed and approved by C.J. Greig, MSc, PGeo, a qualified person as defined by National Instrument 43-101. A quality assurance/quality control program is in place for the Pukaskwa drilling, with the insertion of blank samples in the field, and standards in the lab. All samples from the drilling program were sawn using a core saw, with samples submitted to ALS Chemex Laboratories of Thunder Bay, Ont., and North Vancouver, B.C., for preparation and analysis. All gold analyses reported in this release were completed using conventional fire assay techniques. Ten samples which yielded higher gold values were rerun using metallic screen assaying techniques, but the results were essentially equivalent. In addition, approximately half of the samples yielding higher arsenic contents (greater than 2,000 parts per million) were rerun using a larger fusion size (50 grams instead of 30 grams), again yielding equivalent results for gold.