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Asiamet Intersects High Grade Copper Mineralisation at BKZ

Asiamet Resources Limited ("ARS" or the "Company") is pleased to report that ongoing exploration and delineation drilling at the BKZ Polymetallic ("BKZ") prospect located on its Kalimantan Surya Kencana ("KSK") 6th Generation Contract of Work ("CoW"), in Central Kalimantan, Indonesia continues to intersect high-grade copper mineralisation. 

To date, twenty-nine holes (2,810m metres in total) have been drilled to test the upper zone of polymetallic massive sulphide and vein style mineralisation and the lower zone of vein and massive sulphide hosted copper - silver mineralisation. Mineralisation is confirmed over a strike length of at least 125m and is up to 60m in width. Thickness is variably 30m to 60m.  The mineralised domain remains open to the south, east and down-dip.

Highlights of the latest batch of drill results received include: 

BKZ33550-02     5.4m at 4.8% zinc, 1.7% lead and 22g/t silver (from 48.0m)

                           7.1m at 1.87% copper, 14g/t silver, 0.13g/t gold (from 60.9m)

                           9.0m at 3.63% copper, 55g/t silver, 0.16g/t gold (from 84.0m)

                                   Including 5.0m at 4.26% copper, 54g/t silver, 0.16g/t gold (from 88.0m)

                          10.0m at 0.94% copper, 65g/t silver, 0.17g/t gold (from 93.0m)

                                   Including 4.0m at 1.83% copper, 65g/t silver, 0.15g/t gold (from 99.0m)

BKZ33400-01     3.0m at 5.6% zinc, 1.8% lead, 111g/t silver, 0.18% copper and 0.13g/t gold (from 82.0m)

 

These latest assays confirm the continuity of high-grade copper-silver mineralisation within the interpreted "Feeder Structure" at BKZ, with up to 6.3% copper over 1-metre sample intervals.  Mineralisation is hosted by a strongly silicified and brecciated rock that appears to form a coherent zone at depths ranging from 50 to over 100 metres below surface and underlies the near surface polymetallic mineralisation.  Pyrite is the dominant sulphide mineral and chalcopyrite and bornite are the principal copper minerals, occurring in veins, as disseminations and in massive sulphide zones.

 

Drilling Details

The second infill hole on section line BKZ33550 was drilled eastward to test the continuity of mineralisation in hole BKZ33550-01 (116.7m End of Hole "EOH"), which intersected 38.0m at 1.26% copper, 9g/t silver, 0.13g/t gold from 49.0m, (refer ARS Press Release January 11, 2017).  BKZ33550-02 (122.2m EOH) intersected an upper zone of moderate grade, vein-style polymetallic mineralisation starting from 35.0m depth, underlain by multiple zones of moderate to high-grade copper-silver mineralisation starting from 60.9m depth and hosted in massive sulphides and quartz-sulphide veins containing bornite, chalcopyrite and pyrite.  Similar to hole BKZ33550-01, this hole was terminated due to rock hardness and rig capacity, with the final 10.2m comprising a strongly silicified and hematite altered breccia.  Assays confirm the breccia contains gold-silver mineralisation and the final 1.2m sample assayed 0.28g/t gold and 29g/t Ag.

Two exploratory holes were drilled on section line BKZ33400, both from the same collar, the first drilling to the east and the second westward.  Hole BKZ33400-01 (129.0m EOH) intersected a narrow zone of vein-style polymetallic mineralisation, but no significant copper mineralisation was encountered at depth.  Hole BKZ33400-02 (102.9m EOH) did not intersect significant polymetallic or copper silver mineralisation.  Both holes intersected post mineral microdiorite and diorite porphyry dykes, and it is interpreted the copper mineralisation is potentially located further eastward and at depth, located along the NNW-SSE structural corridor.   

The drill hole location plan map and a table of full assay results are provided in Figures 1 and Table 1 respectively.

 

Peter Bird, Asiamet's Chief Executive Officer commented:

"Drilling continues to enhance our understanding of the dimensions of the two mineralised domains at BKZ, the footprint of which remains open in most directions.  The continuity of recently identified structurally controlled high-grade copper-silver mineralisation potentially linking the BKZ and BKM deposits is particularly promising, as are the associated geophysical targets identified at depth below the near surface deposits.

The delineation drilling programme at BKZ is near completion, with only six holes remaining.  Independent consulting geologists Hackman & Associates Pty Ltd have been engaged to complete the maiden Resource estimate for the BKZ deposit, which is expected in May 2018. We are looking forward to reporting the results of ongoing drilling programmes as we progress BKZ towards this important value adding milestone." 

 

Table 1: Recent drill intercepts.

 

HOLE ID

 

From

 

To

 

Length

 

Zinc

(%)

 

Lead

(%)

 

Silver

(g/t)

 

Gold

(g/t)

 

Copper

(%)

BKZ33550-02

35.0

38.0

3.0

2.18

0.84

13.00

NSA

NSA

BKZ33550-02

48.0

53.4

5.4

4.80

1.66

21.75

NSA

NSA

BKZ33550-02

60.9

68.0

7.1

1.18

NSA

14.10

0.13

1.87

BKZ33550-02

72.0

77.0

5.0

NSA

NSA

3.66

NSA

0.51

BKZ33550-02

84.0

93.0

9.0

NSA

NSA

55.33

0.16

3.63

Including

88.0

93.0

5.0

NSA

NSA

53.80

0.16

4.26

BKZ33550-02

93.0

103.0

10.0

NSA

3.40

65.18

0.17

0.94

Including

99.0

103.0

4.0

NSA

2.39

65.60

0.15

1.83

BKZ33550-02

112.0

122.2

10.2

NSA

NSA

14.80

0.27

NSA

BKZ33400-01

82.0

85.0

3.0

5.64

1.81

110.70

0.13

0.18

BKZ33400-02

No Significant Assays

 

Notes: Grade intercepts are calculated as a weighted average grade ≥1.0% Zinc (uncut) for Polymetallic Zone.  Grade intercepts are calculated as a weighted average grade ≥0.2% Copper (uncut) for the Copper-Silver Zone.  True widths are interpreted to be between 80-100% of the reported lengths, unless otherwise stated. Orientation of the polymetallic mineralised domain is interpreted to have an azimuth of 340 degrees and a dip of -25 degrees to the northeast. Orientation of the copper mineralised domain is interpreted to have an azimuth of 340 degrees, a dip of -25 degrees to the northeast and plunging south-southeast.

 

Figure 1: Location map showing strong zinc in soil geochemistry over the BK district with prospects & drill collars. To view the graphic, please open the link here http://www.asiametresources.com/i/maps/2018-02-06-nrm-ars-tecd81.jpg

 

 

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