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ADDITIONAL ASSAY RESULTS FROM THE 2005 IN-FILL DRILL PROGRAM AT THE BISHA GOLD/VMS DEPOSIT, ERITREA

 

ADDITIONAL ASSAY RESULTS FROM THE 2005 IN-FILL DRILL PROGRAM AT THE BISHA GOLD/VMS DEPOSIT, ERITREA

 

July 11, 2005

Nevsun Resources (NSU:TSX and AMEX) is pleased to report the final infill drill results for the recently completed Bisha deposit drill programTwo areas were selected for detailed drilling on 12.5 meter centers to confirm continuity of mineralization and to verify variography as part of the reserve estimate for the Bisha feasibility study. The study is being conducted by AMEC.

The infill drill assay results for the southern section of the Bisha deposit were published in a news release on June 20th.  The assay results from the northern section of the deposit are presented below in Table 1.

The infill drill program has been interpreted by the Company to confirm the continuity of the mineralization. The Bisha reserve estimate is scheduled for the last quarter of 2005 and the Bisha feasibility study is scheduled for completion in the first quarter of 2006.

Highlights include:

Oxide Zone

  • Hole B-364 intersected 11.4 g/t Au over 34.35 meters
  • Hole B-366 intersected 10.1 g/t Au over 33.75 meters
  • Hole B-367 intersected 14.77 g/t Au over 39.0 meters including 70.76 g/t Au over 6.0 meters

Table 1: Bisha Infill Drill Results – Northern section

 

Hole #

From

To

Length (m)

Au g/t

Ag g/t

Cu %

Pb %

Zn %

Dip Collar

Section

 

Oxide

 

 

 

 

 

 

 

 

 

 

 

B-345

3.0

18.2

15.2

7.06

16.7

0.08

0.50

0.09

-45

1716013

 

B-346

3.0

18.0

15.0

8.41

11.0

0.20

0.93

0.13

-45

1716038

 

B-347

4.5

16.5

12.0

7.33

57.4

0.05

0.75

0.03

-45

1716063

 

B-359

22.0

46.5

24.5

7.71

18.3

0.07

0.44

0.11

-45

1716013

 

B-360

6.0

51.0

45.0

3.2

24.5

0.08

0.49

0.10

-45

1716013

 

B-363

3.35

37.5

34.5

7.12

23.7

0.08

0.42

0.09

-66

1716038

 

Hole #

From

To

Length (m)

Au g/t

Ag g/t

Cu %

Pb %

Zn %

Dip Collar

Section

 

Oxide

 

 

 

 

 

 

 

 

 

 

 

B-366

4.0

37.75

33.75

10.10

52.7

0.11

0.93

0.10

-66

1716063

 

B-367

3.0

42.0

39.0

14.77

42.3

0.06

0.23

0.07

-66

1716063

 

Incl.

21.0

27.0

6.0

77.76

23.4

0.05

0.30

0.07

 

 

 

Supergene

 

 

 

 

 

 

 

 

 

 

 

B-345

42.0

52.5

10.5

0.02

0.6

0.45

0.00

0.02

-45

1716013

 

B-359

51.0

59.5

8.5

2.43

53.0

0.18

0.26

0.03

-45

1716013

 

and

74.5

79.8

5.3

0.03

0.8

1.16

0.01

0.02

 

 

 

B-364

40.5

88.0

47.5

0.58

21.2

2.61

0.03

0.04

-66

1716063

 

B-365

40.5

67.0

26.5

0.56

17.1

3.32

0.02

0.06

-66

1716038

 

B-366

44.5

82.0

37.5

0.16

5.2

0.43

0.01

0.00

-66

1716063

 

Primary

 

 

 

 

 

 

 

 

 

 

 

B-336

286.0

305.0

19.0

0.37

13.8

0.30

0.08

3.36

-65

1715350

 

The three sections, 1716063N, 1716038N, and 1716013N as interpreted by the Company are presented in Figure 1, and the drill location map is presented in Figure 2. The mineralized zone on section 1716063N is estimated to have a true width of 92 meters at a vertical depth of 20 meters, 74 meters at a depth of 50 meters and 50 meters at a depth of 100 meters. On section 1716038N the mineralized zone is estimated to be 74 meters wide at a vertical depth of 20 meters, 54 meters wide at 50 meters and 26 meters wide at 100 meters. On section 1716013N the estimated true width at a vertical depth of 20 meters is 42 meters, at 50 meters it is 33 meters and at 100 meters it is 20 meters.

Holes B-332 and B-330 were drilled at the north end of the deposit in an attempt to extend and more fully define the mineralization in this area. The holes assisted in improving the understanding of the configuration of the deposit and are presented in Table 2. True widths at 20 meters depth are estimated to be 70 meters, 60 meters at 50 meters depth and 40 meters at 100 meters depth.

Table 2: Exploration Drilling at north end of Bisha Main

 

Hole #

From

To

Length (m)

Au g/t