Batu Kuning
H&S’s review of the available gold and silver intersect information for the other drilled prospects by Antares highlights the Batu Kuning area due to the occurrence of high grade gold and silver intercepts in several holes.
Hole |
From |
To |
Width |
Au (g/t) |
Ag (g/t) |
BKH005 |
9.4 |
10.6 |
1.2 |
111.5 |
42 |
BKH009 |
92 |
94 |
2 |
10.43 |
14 |
BKH021 |
166 |
169 |
3 |
8.38 |
1512 |
Summary of High Grade intercepts at Batu Kuning
The Batu Kuning prospect comprises a number of north-south trending quartz-pyrite, and quartz and manganese carbonate veins in a sequence of variously clay and chlorite altered andesitic tuffs. Mineralisation can be traced in excess of 1500m in a north-south direction.
Individual veins appear quite continuous, as traceable by lines of local workings, with typical epithermal style textures varying from cockade, with open centres up to around 30cm thick, to narrow veinlets of 3-20cm thickness all of which can carry high grades of gold. Local miners report grades equivalent to approximately 100g/t Au from an outcropping vein less than 5cm wide in a road cut at the northern end of the prospect. The Batu Kuning mineralization is characterized by relatively coarse gold, with screen fire assays commonly showing high gold values in the oversize fractions, and consistent free gold panned by local miners from crushed vein material. At Batu Kuning, Ag/Au ratios are consistently lower in oxidized core compared to the primary zone, suggesting significant leaching of silver has occurred in the weathered zone.
Finders have begun a systematic program of drill testing to establish the structure and continuity of the Batu Kuning vein system.. To date twenty diamond drill holes have been drilled for about 3,025m with holes variously targeted to check reported grades from historical drilling, test the depth extent of existing outcrops and test geophysical targets. Significant intersections tabulated below recorded from many of the holes drilled towards the west, these appear to be controlled by narrow (5mm to 30cm wide) quartz +/- carbonate veins and veinlets, at low angles to the core axis, which appear to dip to the west at 50-80o, resulting in exaggerated thickness for the intersections compared to the true thickness of the veins.
Typically, near surface mineralisation has returned gold grades of a similar tenor to the Jambi oxide deposit which is located approximately 600m north of Batu Kuning.
Hole |
|
From |
Width |
Au |
Ag |
AuE |
BTK01 |
|
17.7 |
12.8 |
3.9 |
6.0 |
4.0 |
|
24.5 |
4.0 |
8.6 |
9.0 |
8.8 |
|
30.5 |
35.9 |
2.1 |
51.0 |
3.0 |
|
48.4 |
6.8 |
6.1 |
145.0 |
8.5 |
BTK02 |
|
17.0 |
1.0 |
2.1 |
4.0 |
2.1 |
|
48.0 |
1.0 |
1.0 |
5.0 |
1.1 |
|
97.0 |
1.0 |
1.3 |
6.0 |
1.4 |
|
105.0 |
1.0 |
1.1 |
23.0 |
1.4 |
BTK03 |
|
20.5 |
1.0 |
0.9 |
13.0 |
1.1 |
|
26.5 |
1.0 |
3.1 |
2.0 |
3.2 |
BTK04 |
|
5.5 |
5.0 |
1.1 |
13.0 |
1.3 |
|
21.5 |
7.0 |
1.1 |
19.0 |
1.4 |
incl |
25.5 |
1.0 |
5.0 |
8.0 |
5.2 |
|
41.0 |
5.0 |
2.4 |
51.0 |
3.2 |
incl |
42.0 |
1.0 |
8.2 |
52.0 |
9.0 |
|
60.0 |
1.0 |
2.0 |
17.0 |
2.3 |
|
71.0 |
2.0 |
0.9 |
4.0 |
1.0 |
BTK05 |
|
10.7 |
1.0 |
7.6 |
25.0 |
8.0 |
|
33.0 |
6.0 |
3.1 |
138.0 |
5.4 |
incl |
35.0 |
1.0 |
11.9 |
690.0 |
23.4 |
|
50.1 |
1.0 |
2.7 |
19.0 |
3.0 |
|
75.7 |
2.0 |
1.1 |
1.0 |
2.0 |
|
94.0 |
1.0 |
0.9 |
18.0 |
1.2 |
|
114.5 |
1.0 |
4.1 |
311.0 |
9.3 |
|
126.5 |
1.0 |
2.6 |
202.0 |
6.0 |
|
148.0 |
1.5 |
3.9 |
197.0 |
1.5 |
|
153.0 |
4.0 |
1.2 |
100.0 |
2.9 |
incl |
154.0 |
1.0 |
2.0 |
361.0 |
8.0 |
BTK06 |
|
72.5 |
2.0 |
3.7 |
6.0 |
3.8 |
|
78.0 |
1.0 |
1.0 |
3.0 |
1.0 |
|
148.5 |
1.0 |
1.3 |
2.0 |
1.3 |
BTK07 |
|
25.5 |
1.0 |
1.4 |
4.0 |
1.5 |
|
39.0 |
1.0 |
1.0 |
5.0 |
1.1 |
|
75.4 |
3.0 |
0.8 |
12.0 |
1.0 |
|
83.6 |
1.0 |
6.5 |
330.0 |
12.0 |
|
88.7 |
3.0 |
1.1 |
3.0 |
1.2 |
|
138.7 |
7.5 |
8.4 |
10.0 |
8.6 |
incl |
140.7 |
5.5 |
11.2 |
14.0 |
11.5 |
incl |
144.2 |
1.0 |
34.2 |
34.0 |
34.8 |
|
166.5 |
1.0 |
1.9 |
2.0 |
2.0 |
|
187.5 |
2.0 |
1.0 |
2.0 |
1.0 |
BTK09 |
|
34.5 |
2.0 |
1.1 |
9.8 |
1.3 |
|
95.0 |
2.0 |
1.3 |
1.7 |
1.3 |
|
193.0 |
2.0 |
1.3 |
0.3 |
1.3 |
BTK10 |
|
16.0 |
1.0 |
2.1 |
30.0 |
2.6 |
BTK11 |
|
61.0 |
3.0 |
1.0 |
14.9 |
1.2 |
|
187.0 |
3.0 |
1.3 |
122.6 |
3.3 |
BTK12 |
|
149.5 |
6.0 |
3.3 |
2.5 |
3.4 |
incl |
150.5 |
1.0 |
11.4 |
5.3 |
11.5 |
BTK13 |
|
67.0 |
1.0 |
3.1 |
5.7 |
3.2 |
|
94.0 |
8.5 |
1.2 |
4.1 |
1.3 |
incl |
100.5 |
2.0 |
2.7 |
3.0 |
2.8 |
|
109.0 |
5.0 |
0.9 |
3.6 |
1.0 |
|
120.0 |
2.0 |
2.2 |
7.0 |
2.3 |
|
126.0 |
2.5 |
3.1 |
82.8 |
4.5 |
|
133.8 |
1.6 |
2.2 |
5.0 |
2.3 |
|
178.0 |
12.0 |
2.1 |
40.5 |
2.8 |
incl |
182.0 |
5.0 |
4.2 |
94.2 |
5.8 |
|
205.0 |
1.0 |
2.5 |
8.5 |
2.7 |
|
212.0 |
1.0 |
1.7 |
3.4 |
1.8 |
|
218.5 |
1.0 |
1.9 |
2.8 |
1.9 |
BTK16 |
|
96.5 |
1.2 |
3.2 |
159.0 |
5.8 |
|
112.0 |
2.0 |
1.9 |
8.5 |
2.1 |
|
121.0 |
1.1 |
1.6 |
180.0 |
4.6 |
|
162.0 |
1.0 |
1.2 |
2.4 |
1.2 |
BTK19 |
|
67.9 |
0.9 |
4.3 |
49.3 |
5.1 |
Au equivqlents are calculated using Ag g/t divided by 60 plus Au g/t

Summary of Finders' Intercepts (apparent not true widths) at Batu Kuning
Geology and drill hole location map, Batu Kuning