Canada-listed Mawson Resources Ltd (TSE:MAW) released results from infill drilling at the Raja permit and the first systematic base-of-till (BOT) drill program under way at the Kairamaat 2-3 permit area within the Rajapalot gold project in Finland on Thursday.
The BOT drill program consists of shallow grid-based drilling designed to test for gold mineralization beneath thin glacial soil cover.
In total, across all permit areas, 1,350 BOT holes have now been completed from a planned 1,450-hole program. Drilling is continuing, and assays from 321 holes are awaited from Kairamaat 2-3.
The larger area for BOT drilling was delineated by Mawson's previous discovery of 201 boulders and subcrop grab samples with greater than 0.1 gram per tonne gold that range from 0.1 gram per tonne gold to 3,220 grams per tonne gold, with an average of 89.3 grams per tonne gold and a median of 0.9 gram per tonne gold. Grab samples are selected samples and are not necessarily representative of the mineralization hosted on the property.
New results reported here include:
- Eight hundred four BOT drill holes over a four-kilometre-by-three-kilometre area within Natura 2000 areas at Rajapalot (Kairamaat 2-3) confirm the large scale and tenor of gold anomalism across the property. Multiple new targets have been defined.
- Two hundred six infill BOT holes at 25-metre spacing drilled east of Kairamaat 2-3 at Raja, and outside Natura 2000 areas, have defined six diamond drill-ready targets. This is a follow-up to grid drilling as reported in Mawson's news release dated Oct. 25, 2016.
- Encouragingly, gold-mineralized BOT samples match and better define the surface trend of the Palokas prospect where previous diamond drill intersections include 5.4 metres at 37.6 grams per tonne gold from 2.5 metres and 19.3 metres at 7.4 grams per tonne gold from 1.3 metres. True thickness of mineralized intervals is interpreted to be approximately 90 per cent of the sampled thickness.
- Lateral continuity of gold-mineralized rocks below thin glacial soil over a broad area can now be inferred from interpretation of ground magnetics, BOT rock types and alteration minerals (in particular, chlorite, muscovite, biotite and talc), combined with gold, bismuth and tellurium, and other trace and major element assays. At Palokas, a distinctive gold core with a bismuth halo is evident in the BOT data.
- Diamond drilling continues, with two drill rigs operating 24/seven at Rajapalot. Results from this program will start to be reported shortly.
"This systematic base-of-till drill test of Rajapalot confirms the broad extent of gold anomalism across the property. The replication of the known mineralized areas validates the BOT technique as a viable method. The scale of anomalism is impressive, and the absolute values of some of the higher values in weathered bedrock (up to 259 parts per billion gold) is encouraging. Importantly, infill BOT drilling at 25-metre spacing has defined six diamond drill targets outside Natura 2000 areas. BOT drilling will continue 24/seven until we fully test the larger gridded area and follow up priority locations with closer-spaced infill drilling. We also look forward to the imminent news flow for drill core assays from two diamond drill rigs, which are also operating 24/seven at Rajapalot," said Michael Hudson, chief executive officer
Drilling took place over an area of three kilometres by four kilometres on Mawson's recently granted exploration permits at Kairamaat 2-3 and Hirvimaa, and within an area covered by a landholder permit on the Raja exploration permit application area. Nine hundred twenty grid-based BOT drill holes have now been completed inside exploration permit Kairamaat 2-3. Till depth varied between 0.3 metre and 11 metres, and averaged 4.4 metres. Four different sample types were described from the drilling data: glacial till (7 per cent of all total samples), weathered bedrock (59 per cent), diamict or reworked till (31 per cent), and reworked and transported sand (3 per cent). Areas of geochemical anomalism for follow-up were based on multielement gold, tellurium, copper and bismuth, and normalized to sample type (weathered bedrock and till varieties) as well as geological observations, including the presence of hydrothermal alteration minerals. Most geochemical anomalies have been defined in weathered bedrock.