Western Sahara |
Hanno signed a 4year Technical Cooperation Agreement with the Government of the SADR in March 2007. Under the terms of the agreement Hanno undertook to provide a technical appraisal of the mineral potential of the SADR on behalf of the Government. The TCA was completed in June 2011 earning Hanno the first right to licence up to 20,000km2 ground in the SADR for mineral exploration.
The work requirements of the TCA were split into two phases each lasting 24months:
- Conduct a full technical overview of the mineral potential of the onshore SADR, to include adjacent activity in neighbouring countries, from all available data sources. Results to be presented as a formal hard copy as well as digital reports and a database
- Acquisition and analysis of regional satellite data and preparation of a digital database
- Field reconnaissance visits and reports with appropriate analysis of samples collected
- Completion of integrated assessment (satellite mapping tied to field observations and sampling)
- Preparation of hydrogeological maps of the Liberated Territories utilising satellite imagery and any available legacy geological data
- Collation of all water-well data (including well location, flow rate, and if practical, analysis of water produced)
- Site investigation of existing water-well and natural water sources
- Report detailing key factors currently limiting water production and recommendation of forward programme
- Assistance with planning water-well drilling programme
- Detailed analysis of all available satellite and photographic/remote sensing data over areas of interest highlighted in Phase One
- Detailed ground reconnaissance of areas of interest
- Field mapping, geophysical surveying and detailed sampling of areas of interest (as appropriate), and mineralogical/geochemical analysis of samples as required
Exploration work by Hanno has confirmed the extension of the Tiris Iron Ore Province from neighbouring Mauritania into Western Sahara. Over 40 iron targets based on spectral interpretation of Landsat satellite imagery were investigated with the majority confirmed to be high-grade coarse-grained magnetite quartzite with Fe grades of 29.6% to 69.6%. An exploration target of 4 to 5 billion tonnes of iron ore has been estimated based on geological mapping of the iron units.
Gold and Base Metals
Interpretation of ASTER multispectral satellite imagery over a large part of the Southern Liberated Territories has identified over 100 potential gold and base metals targets. We have commenced an initial 5,000 sample regional soil geochemical survey over these areas of interest in addition to ground-truthing the targets.
Two of the most prominent targets cover the area of Agarasras Labiad. This target was interpreted as a sheared granite intrusion that had been emplaced by quartz veining as evidenced by significant quartz shedding visible on satellite imagery. Field observations confirmed this interpretation. Significant pyrite mineralisation was observed within the granite host and initial sampling of the quartz veins shows anomalous mineralisation of gold, silver and copper of up to 21.3 grams per tonne of gold.