Tchintaby Well Project
(E52/1882) - 80% Encounter, 20% Avoca and Tchintaby East (E52/2386) - 100% Encounter
The Tchintaby project covers over 172km 2 targeting high grade SEDEX zinc mineralisation, similar to the Century and McArthur River deposits in eastern Australia.
An Initial drill program of seven vertical RC holes was completed in September 2008 at the Andes, Laksa and Rendang prospects (Figure 1). The program was designed to test a series of bouguer anomalies within the sedimentary package. The excess mass gravity anomalies were interpreted to represent concentrations of sulphidic material and possibly base metal mineralisation.
Figure 1: Tchintaby Well - Location of gravity anomalies, historical drilling and Encounter drilling
Drilling discovered a significant 4 km strike extension to the Zn-Cu-Ag mineralised black shale horizon, including intersections of 12m @ 7062ppm Zn, 1053ppm Cu (ETW 013 - Rendang) and 11m @ 7327ppm Zn, 1022ppm Cu (ETW 006 - Laksa). Table 1 includes significant assay results from the September 2008 drill program. The drilling results, however, did not account for the 2g/cc (2mgal) excess mass anomaly targeted by the drill program. Samples of the drilled lithologies were submitted for density measurement, which will be incorporated into geological models to determine the depth and nature of the excess mass anomaly.
Table 1: Significant drill hole intersections from Tchintaby project drilling in September 2008
|
Hole Number |
Prospect |
Northing |
Easting |
Depth From(meters) |
Thickness(meters) |
Zn ppm |
Cu ppm |
|
ETW 1 |
Andes |
7340300 |
611827 |
26 |
7 |
4057 |
472 |
|
ETW 2 |
Andes |
7340702 |
612072 |
35 |
9 |
6338 |
870 |
|
ETW 3 |
Andes |
7341170 |
612280 |
33 |
13 |
7488 |
854 |
|
ETW 6 |
Laksa |
7338200 |
615750 |
164 |
11 |
7327 |
1022 |
|
ETW 9 |
Laksa |
7338200 |
616200 |
164 |
9 |
6806 |
999 |
|
ETW 13 |
Rendang |
7337400 |
619200 |
197 |
12 |
7062 |
1053 |
|
ETW 14 |
Laksa |
7336750 |
615400 |
273 |
10 |
6050 |
833 |
Key learnings from this drill program identified the potential for additional SEDEX targets along the northern margin of the Bangemall Basin. A structural targeting exercise and review of the regional geochemical sampling defined a new target 30kms to the east of the Tchintaby project. Tenement E52/2386 was granted in June 2009, with initial field work to commence in 2010.
