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NEVADA BISONI MCKAY 2005 DRILLING
In the fall of 2005, Stina conducted an additional exploration program of trenching, sampling, reverse circulation and the first ever core drilling conducted on the Property. Core drilling was completed in September 2005 on two target areas. A total of 1,732 feet were drilled in five holes, three in Northern Area A and two in Southern Area B. Eleven reverse circulation holes (3,574 feet) were drilled in November 2005 ranging from 80 feet to 550 feet in depth in Northern Area A (6 holes) and Southern Area B (5 holes). The trench sampling confirmed at least 1,200 feet of vanadiferous beds is the southern part of the property (Southern Area C). Area locations are shown below.

2005map1


Core Drilling
Diamond drill holes DDH BMK 05-01 and 02 both stopped in mineralized black mudstone with grades of 0.54% and 0.55% V2O5, respectively. Hole DDH BMK 05-03 intersected vanadium mineralization more than 400 feet below surface, deeper than any previous drilling. The black mudstone, which appears to carry the highest grades of V2O5, shows an approximate true width of 180 feet and dips to the east. A detailed summary of core drilling results on the Northern Area A is listed below. Core recovery was generally between 93% and 98%.

2005map2


Northerna Area A Diamond Drill Hole
Decline and Description From(ft) To(ft) Length(ft) V(%) V2O5(%) V2O5(lb/ton)
DDH BMK 05-01, 45 Degrees 0 323 323 0.53 0.43 9.15
Including: Khaki mudstone 0 75 75 0.14 0.25 4.95
Grey mudstone 75 205 130 0.17 0.30 6.05
Black carbonaceous mudstone 205 225 20 0.29 0.53 10.05
Black carbonaceous mudstone 225 300 75 0.53 0.95 18.91
Black carbonaceous mudstone 300 323 23 0.21 0.37 7.31
DDH BMK 05-02, 57.5 degrees 23 345 322 0.30 0.53 10.67
Including: Fawn to tan mudstone 23 119 96 0.16 0.29 5.82
Grey mudstone 119 188 69 0.16 0.29 5.77
Sandstone with mustdtone interbeds 188 213 25 0.17 0.30 6.03
Black caronaceous mudstone 213 345 132 0.49 0.88 17.65
DDH BMK 05-03, 63 degrees 13 488 475 0.23 0.42 8.35
Including: Tan mudstone 13 83 79 0.15 0.27 5.36
Grey mudstone 83 227 144 0.28 0.50 9.90
Black mudstone 227 343 116 0.34 0.60 12.09
Black mudstone 227 428 201 0.28 0.49 9.89
Dark grey to black mudstone 428 488 60 0.09 0.15 3.07


Stina Vs. Hecla Drilling
Stina's 2005 drilling program on Northern Area A was located between two reverse circulation holes drilled by Hecla 30 years ago (BMK 18 and BMK 19). Stina's Hole No. DDH BMK 05-01 twinned Hecla's Hole BMK 18, and returned similar results as detailed below, including intersecting similar geology. Both holes were drilled on a decline of 45o. The twinning results provide additional credibility to Hecla's exploration work and resource calculation.

Twinned Drilling Results
Description From(ft) To(ft) Length(ft) V(%) V2O5(%) V2O5(lb/ton)
Stina-DDH BMK 05-01 0 323 323 0.53 0.43 9.15
Including 205 323 118 0.43 0.76 15.22
With high grade 225 300 75 0.53 0.95 18.91
Hecla-BMK 18 0 400 400 0.26 0.47 9.40
Including 260 400 140 0.36 0.65 13.04
With high grade 260 325 90 0.56 1.00 20.00


Reverse Circulation Drilling
Reverse circulation drilling results on the Northern Area A as noted in the summary below:

Northern Area A Reverse Circulation Drill Hole
Decline and Description From(ft) To(ft) Length(ft) V(%) V2O5(%) V2O5(lb/ton)
RC BMK 05-01, 45 degrees 0 550 550 0.15 0.27 5.38
Silty mudstone 0 15 15 0.03 0.05 1.06
Mudstone - carbonaceous shale 15 315 300 0.25 0.45 9.04
Carbonaceous shale 315 550 235 0.03 0.05 0.99
RB BMK 05-02, 45 degrees 0 400 400 0.15 0.26 5.28
Silty mudstone - carbonaceous shale 0 230 230 0.06 0.11 2.17
Carbonaceous shale 230 350 120 0.31 0.55 10.92
Carbonaceous shale 350 400 50 0.17 0.30 6.09
Summary - carbonaceous shale 230 400 170 0.27 9.50
RC BMK 05-03, 45 degrees 0 410 410 0.10 0.18 3.58
Silty mudstone - carbonaceous shale 0 185 185 0.05 0.09 1.83
Carbonaceous shale 185 360 175 0.18 0.31 6.29
Carbonaceous shale 360 410 50 0.02 0.03 0.58
RC BMK 05-04, 45 degrees 55 330 275 0.25 0.45 9.03
Silty mudstone 0 55 55 0.04 0.07 1.39
Mudstone - carbonaceous shale 55 205 150 0.29 0.51 10.25
Including 110 205 95 0.34 0.61 12.24
Carbonaceous shale 205 330 125 0.21 0.38 7.57
Below main mineralized zone 330 440 110 0.02 0.03 0.39
RC BMK 05-05, 45 degrees 100 320 220 0.24 0.42 8.49
Silty mudstone - carbonaceous shale 0 100 100 0.03 0.05 0.99
Carbonaceous shale 100 255 155 0.25 0.45 9.03
Carbonaceous shale 255 320 65 0.20 0.36 7.20
Below main mineralized zone 350 500 180 0.02 0.03 0.57
RC BMK 05-06, 45 degrees 110 330 220 0.23 0.41 8.24
Silty mudstone - carbonaceous shale 0 110 110 0.02 0.03 0.62
Below main mineralized zone 330 450 50 0.03 0.05 1.06


Southern Area B and Southern Area C
The Southern Area B mineralization ranges from 45 to 150 feet in thickness along a trend of about 1,100 feet. The trench sampling on the Southern Area C indicates at least 1,200 feet of vanadiferous strata.
Copyright 2009-2011 Stina Resources LTD | Disclaimer | Properties | News | Corporate | Stock | Vanadium | Contact