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Navasota Drills Up to 56% Alumina on Northeast Plateaus, Koba Bauxite Project, Guinea
Navasota Resources Ltd. (TSX-V : NAV) is pleased to report additional results from aircore drilling on the Télimélé and Gaoual ("AMIG") permits of its Koba Bauxite Project located in the Boke Bauxite Belt of north-western Guinea, West Africa. Table 1 summarizes drill results for the Fakkerefonye, Touguiwel Competa, and Killikocco plateaus in the northeastern portion of the Télimélé permit and southwestern portion of the Gaoual permit. Location maps can be found at www.navasota.com.
Table 1: Phase 1 Drill Results for Northeast Plateaus, Koba Bauxite Project
Prospect |
AC Holes |
Drill Metres |
Average Thickness |
Al2O3 (%) |
SiO2 (%) |
Northeast Plateaus |
|
|
|
|
|
Fakkerefonye |
25 |
559 |
8.28 |
44.31 |
2.49 |
Touguiwel Competa |
11 |
259 |
9.73 |
42.13 |
2.03 |
Killikocco |
8 |
165 |
7.13 |
41.22 |
2.43 |
Phase 1 drilling was designed to confirm the presence of bauxite mineralization on 25 target "plateaus" and totalled 10,666 metres in 558 drill holes at 300 and 600-metre spacings. For further details, please see Navasota news releases dated November 7, 2007, April 8, May 30, July 22, and August 21, 2008.
Fakkerefonye Plateau
Highlights from 25 Phase 1 drill holes completed at Fakkerefonye Plateau, (located immediately northeast of the large Kouraidendeli Plateau); are presented in Table 2. All 25 drill holes intersected bauxitic intervals with weighted average grades of 44.31% Al2O3 and 2.49% SiO2 over an average 8.28-metre thickness, using 35% Al2O3 and 6% SiO2 cut-off grades.
Table 2: Selected Assay Results from Fakkerefonye Plateau
Hole ID |
From
(metres) |
To
(metres) |
Thickness
(metres) |
Al2O3
(%) |
SiO2
(%) |
NAV0383 |
9 |
16 |
7 |
36.43 |
1.86 |
NAV0384 |
11 |
15 |
4 |
40.95 |
3.64 |
NAV0385 |
3 |
8 |
5 |
44.04 |
3.49 |
NAV0386 |
0 |
7 |
7 |
43.29 |
3.93 |
NAV0387 |
6 |
12 |
6 |
41.73 |
3.62 |
NAV0388 |
0 |
14 |
14 |
42.04 |
2.49 |
NAV0389 |
1 |
5 |
4 |
39.43 |
5.09 |
NAV0390 |
9 |
12 |
3 |
38.53 |
2.69 |
NAV0391 |
1 |
16 |
15 |
39.28 |
1.40 |
NAV0392 |
6 |
14 |
8 |
45.31 |
2.21 |
NAV0393 |
0 |
13 |
13 |
46.61 |
2.43 |
NAV0394 |
4 |
11 |
7 |
44.01 |
4.36 |
NAV0395 |
4 |
15 |
11 |
38.44 |
3.56 |
NAV0396 |
7 |
9 |
2 |
56.80 |
1.74 |
NAV0397 |
0 |
15 |
15 |
48.83 |
2.16 |
NAV0398 |
1 |
16 |
15 |
48.19 |
1.84 |
NAV0399 |
1 |
13 |
12 |
42.15 |
2.53 |
NAV0400 |
7 |
12 |
5 |
45.10 |
3.28 |
NAV0401 |
4 |
12 |
8 |
53.92 |
2.24 |
NAV0402 |
3 |
9 |
6 |
44.95 |
2.50 |
NAV0403 |
0 |
15 |
15 |
48.06 |
1.56 |
NAV0423 |
1 |
15 |
14 |
43.79 |
1.63 |
NAV0424 |
4 |
7 |
3 |
41.70 |
4.43 |
NAV0425 |
7 |
10 |
3 |
37.73 |
1.50 |
NAV0426 |
1 |
6 |
5 |
51.22 |
2.04 |
Touguiwel Competa Plateau
Touguiwel Competa Plateau is located immediately east of Fakkerefonye Plateau. All 11 Phase 1 drill holes intersected bauxitic intervals with weighted average grades of 42.13% Al2O3 and 2.03% SiO2 over an average 9.73-metre thickness, using 35% Al2O3 and 6% SiO2 cut-off grades (see Table 3).
Table 3: Selected Assay Results from Touguiwel Competa Plateaus
Hole ID |
From
(metres) |
To
(metres) |
Thickness
(metres) |
Al2O3
(%) |
SiO2
(%) |
NAV0404 |
1 |
12 |
11 |
43.46 |
2.56 |
NAV0405 |
10 |
14 |
4 |
35.55 |
2.98 |
NAV0406 |
0 |
15 |
15 |
38.23 |
1.37 |
NAV0407 |
1 |
5 |
4 |
41.63 |
2.05 |
NAV0408 |
1 |
12 |
11 |
42.45 |
2.87 |
NAV0409 |
2 |
13 |
11 |
43.25 |
2.16 |
NAV0410 |
3 |
13 |
10 |
39.74 |
1.34 |
NAV0411 |
7 |
13 |
6 |
45.77 |
2.47 |
NAV0412 |
1 |
11 |
10 |
43.43 |
2.64 |
NAV0413 |
0 |
16 |
16 |
42.67 |
1.58 |
NAV0414 |
0 |
9 |
9 |
46.17 |
1.49 |
Killikocco Plateau
Killikocco is located immediately east of Touguiwel Competa Plateau. Eight drill holes were completed during Phase 1 and highlights are presented in Table 4. All eight holes intersected bauxitic intervals with weighted average grades of 41.22% Al2O3 and 2.43% SiO2 over an average 7.13-metre thickness, using 35% Al2O3 and 6% SiO2 cut-off grades.
Table 4 Selected Assay Results from Killikocco Plateaus
Hole ID |
From
(metres) |
To
(metres) |
Thickness
(metres) |
Al2O3
(%) |
SiO2
(%) |
NAV0415 |
0 |
11 |
11 |
40.10 |
2.25 |
NAV0416 |
1 |
13 |
12 |
43.90 |
2.17 |
NAV0417 |
1 |
9 |
8 |
40.64 |
1.64 |
NAV0418 |
1 |
9 |
8 |
42.39 |
2.86 |
NAV0419 |
7 |
9 |
2 |
49.70 |
2.94 |
NAV0420 |
2 |
6 |
4 |
38.13 |
2.84 |
NAV0421 |
6 |
11 |
5 |
38.42 |
2.64 |
NAV0422 |
6 |
13 |
7 |
39.04 |
3.08 |
Drill Program Summary
The in-fill Phase 2 drilling covered the largest and most continuous bauxite plateaus identified during Phase 1 drilling and reduced the drill spacing to 150-metres on 12 plateaus previously covered by Phase 1 drilling. Phase 2 drilling will allow Navasota to determine bauxite mineralization continuity, grade and thickness variability; all necessary parameters for resource modelling. A total of 26,093 metres in 1,589 drill holes were completed during Phase 2.
Table 5 lists each plateau and summarizes the Koba Bauxite Project aircore drilling completed to date.
Table 5 Summary of Drilling, Koba Bauxite Project
Plateau |
PHASE 1 |
PHASE 2 |
AC Holes |
Drill Metres |
AC Holes |
Drill Metres |
Eastern Plateaus |
|
|
|
|
Madina Diang |
24 |
570 |
269 |
4,702 |
Tito |
18 |
438 |
|
|
Nomo |
40 |
917 |
418 |
7,105 |
Ouda |
13 |
298 |
101 |
1,962 |
Farenya |
26 |
499 |
117 |
1,839 |
Maniega |
- |
- |
- |
- |
Akounedjande |
14 |
174 |
|
|
Central Plateaus |
|
|
|
|
Kaoulak |
18 |
329 |
|
|
Horefilo |
13 |
247 |
|
|
Fillo |
8 |
165 |
|
|
Kendaya |
12 |
239 |
|
|
Bounna |
17 |
279 |
|
|
Kounsitokhe |
15 |
254 |
43 |
601 |
Dounoama |
13 |
212 |
|
|
Lakhorde |
15 |
244 |
59 |
822 |
Tenkele |
25 |
441 |
68 |
976 |
Northeastern Plateaus |
|
|
|
|
Kouraidendeli |
111 |
2,077 |
320 |
5,094 |
Touguiwel Competa |
11 |
259 |
|
|
Killikocco |
8 |
165 |
|
|
Fakkerefonye |
25 |
559 |
|
|
Northwestern Plateaus |
|
|
|
|
Ore Pousse 1 |
7 |
103 |
|
|
Ore Pousse 2 |
8 |
155 |
|
|
Sapi North |
10 |
163 |
37 |
557 |
Sapi South |
14 |
246 |
58 |
933 |
Foye |
30 |
505 |
99 |
1,502 |
Gaoual North Plateaus |
|
|
|
|
Kounsidji |
57 |
1,026 |
|
|
Bhoundoutchale |
6 |
102 |
|
|
TOTALS |
558 |
10,666 |
1,589 |
26,093 |
GRAND TOTAL |
|
2,147 |
36,759 |
Technical Studies Initiated
Navasota has retained Scott Wilson Roscoe Postle Associates Inc., part of the Scott Wilson Mining Group, to complete a National Instrument 43-101 compliant resource estimate for the Koba Project. A preliminary review of Koba Project methodology and data suggests that Phase 1 results, at 300-metre drill spacings, are sufficient to achieve an "Inferred" classification of resources. Phase 2 drilling should enable calculation of a "Measured" and/or "Indicated" resource classification.
Coffey Mining managed the drill program on behalf of Navasota and West African Drilling Services provided drill services. All drill samples are submitted to SGS Mineral Services (Guinee) SARL for sample preparation and transferred to SGS Canada Inc. for assay analysis.
General Information
Navasota has the right to earn a 100% interest in the "AMIG" permits, which cover 1,064 square kilometres in the Télimélé and Gaoual prefectures of Guinea. These permit areas are located in the Boke Bauxite Belt, which hosts the world's largest and highest-quality bauxite deposits, and are directly surrounded by several of the world's major bauxite miners.
Christopher J. Wild, P.Eng, President and CEO of Navasota Resources Ltd., and a Qualified Person as defined by Canadian National Instrument 43-101, has reviewed and approved the technical disclosure contained in this news release.
For more information on Navasota and the Koba Bauxite Project, please visit: www.navasota.com or contact Kyle Stevenson of Stevenson & Associates IR at 604-687-1779.
On behalf of the Board of Directors
Navasota Resources Ltd.
Christopher J. Wild
Christopher J. Wild, President & CEO
Neither the TSX Venture Exchange nor any other regulatory body has approved or disapproved of the information contained therein.
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