Archer Exploration Limited Commences Drilling on Campoona Graphite Deposits

Adelaide, Oct 18, 2011 (ABN Newswire) - Archer Exploration Limited (ASX:AXE) are pleased to advise that a 10 hole RC drill programme testing the Campoona South and Grid 2 graphite deposits commenced on 17th October 2011. The drill targets are located in the northwestern portion of EL4693 Wildhorse Plain located between Cleve and Darke Peak on Eyre Peninsula, South Australia.

The drill programme is expected to take 2 weeks to complete.

Despite access limitations due to cropping, Archer will use fallow paddocks and Council fire roads to provide good first pass coverage of the Campoona South and Grid 2 graphite targets. The drilling will provide "bulk" samples for metallurgical test work including grind liberation tests, staged flotation and detailed graphite characterisation of the graphite concentrates.

Campoona South occurs as a prominent north trending graphite outcrop that has consistently assayed >25% C. The outcropping graphite has visible large flake present.

Petrology on Campoona South recorded the graphite size ranging from 5µm to 80µm (width) x 300µm (length) with an average size estimated by Pontifex of 50µm x 250µm. Petrological examination reported the graphite as occurring within "heterogeneous, fine layered quartz-feldspar microgneiss, together with quartz-graphite schist". This includes "minor quartz-clay-sericite-altered ex-sillimanite, and scattered small lenses of relatively concentrated graphite."

Crystalline graphite at 300µm equates to US50mesh and is classified as Extra Large flake graphite. The average size of Campoona South flake is 250µm equating to US60 mesh is termed Large flake and occurs within graphite clots up to 4mm in length.

The presence of sillimanite is important as it reflects a high grade metamorphic overprint has occurred. The metamorphism of a rock refers to the temperature and pressure that the rock has experienced over time. As metamorphic grade increases, higher pressures and temperatures generally enable the development of larger crystals sizes and, in the case of the graphite occurrences tested on Wildhorse Plain, is conducive to the formation of large crystalline flake graphite.

Grid 2 High Bluff was tested for base metal mineralisation by ESSO with 3 + 150m holes spaced at 200m apart. Graphitic schist was reported in all holes. The holes lie on the southerly extent of one of the Campoona EM conductors.


Drill hole logs report;

- Hole G2P-1: 0 to 147m Biotite quartz, muscovite, feldspar, garnet schist/micro gneiss with varying graphite, pyrite and magnetite as accessories.

- Hole G2P-2: 0 to 161m Biotite quartz, muscovite, feldspar graphite schist, intruded by pegmatites. Abundant graphite occurred over an interval of 25m.

- Hole G2P-3: 0 to 150m Biotite quartz schist with varying feldspar, garnet graphite, chlorite and pyrite, with minor pegmatites.

No petrological or qualitative work was performed on the graphite occurring in the drill holes. The ESSO drill logs report high grade metamorphic minerals such (sillimanite and cordierite) as well as zone of migmatite that provide encouragement for graphitic flake development.


The current drilling programme was designed using the airborne EM survey that was completed in August 2011. That survey showed:

1. The close spaced EM survey closely mirrored historic wide spaced EM survey data.

2. Both EM surveys accurately reflect outcropping high grade graphite at Campoona South.

3. The Campoona - Campoona South trend is a significant regional trend.

4. There is at least 20km of strike of highly conductive rocks within the immediate Campoona - Campoona South trend.

5. The geophysical data supports the observation that that the two occurrences at Campoona South and the Campoona Shaft are one continual graphitic unit.

6. The potential for large flake graphite is enhanced by the nearby presence of gneissic granite and the presence of high grade metamorphic mineral assemblages.

Figure 3 (see link at the bottom of the release) shows that both Campoona South and the Grid 2 occurrences are persistent bodies that extend to a depth of at least 200 metres.

A second larger resource definition drilling programme over the Campoona graphite deposits is planned for early calendar 2012 following the 2011 harvest.

For the complete Archer Exploration Limited announcement including figures and tables, please view the following link:
http://media.abnnewswire.net/media/en/docs/ASX-AXE-184999.pdf


About Archer Exploration Limited

Archer Exploration Limited (ASX:AXE) is a copper, gold and uranium explorer focused on the discovery of world-class ore deposits.

The company has carefully acquired a portfolio of projects, covering an area in excess of 7,000 km2, in the highly prospective Gawler Craton and Adelaide Fold Belt regions of South Australia. All projects are 100% owned by the company.

The company's flagship Evelyn Dam prospect in the West Roxby Project is an iron ore-copper-gold-uranium (IOCG-U) target which has a gravity anomaly similar in size to the nearby Olympic Dam operations.

Archer Exploration Limited has an experienced board and management team and has the ability to maximise the potential of the company's world-class projects.



Contact

Mr Greg English, Chairman
Archer Exploration Limited
Tel: +61-8-8272-3288

Mr Gerard Anderson, Managing Director
Archer Exploration Limited
Tel: +61-8-8272-3288

Email: info@archerexploration.com.au
http://www.archerexploration.com.au