 | 
|
|
Moura
click to enlarge | The 46.75 square kilometre Moura license is located 180 kilometres east-southeast of Lisbon. The license encompasses two historical deposits (Enfermarias and Preguica), and 11 known mineral occurrences, within a 25 kilometre lead-zinc-silver belt.
In November of 2010, Northern Lion completed a 4 diamond drill hole program at the Machados area. The third hole (MA-03) intersected 12.8 metres of disseminated, semi massive and massive sulphide mineralization between 162 and 174.8 metres. The sulphides are hosted by a fine grained variably chloritic and silicified volcanic tuff representing a Volcanogenic Hosted Massive Sulphide (VHMS) style mineralization that had not previously been recognized in this area. With the discovery in hole MA-03, a fourth hole (MA-04) was added to the program, located 125 meters to the northwest, and it encountered the mineralized zone between 167 and 175 metres, with a 0.8m interval from 174.2 to 175meters, that returned 3.5% zinc, 0.6% lead, and 0.47 g/t gold. Drill hole MA-02 (300m SE) was initially stopped in the overlying dolomite horizon as the presence of the deeper volcanic unit was unknown at that time. The Company then moved the drill rig back onto the MA-02 to deepen the hole and the same favourable horizon was intersected, although the mineralization was weaker.
click to enlarge |
The sulphide mineralization is hosted in volcanic tuffs and consists of disseminated to massive bands of pyrite and sphalerite with minor galena. Thin bands of chert and exhalite are present within the volcanic sequence, indicating a quiet depositional environment conducive to sulphide accumulation. The most significant results from MA-03 are as follows; 5.4 metres from 164.3 to 169.7 metres of 1.01% zinc including 2.5 metres from 166.5 to 169.0 metres of 1.66% zinc.
Although the grade of the mineralization encountered is low, this is typical of the more distal portions of a VHMS system. The mineralized zone occurs at the upper contact of a sequence of tuffs and black shales with the overlying dolomites. Chalcopyrite, pyrrhotite, arsenopyrite, quartz veins and veinlets were encountered higher in the holes in a sequence of black shales with minor tuffs. A 0.5 metre interval from 57.6 to 58.1 metres in hole MA-03 returned values of 1.73% copper, 34.3 g/t silver and 0.13 g/t gold.
Machados is located approximately 3 km south of the Enfermarias deposit. This deposit was discovered by the Portuguese government exploration authority in the 1980's where they drilled the 13 holes on 200 metre centres, 11 of which intersected mineralization. In 2008, Northern Lion drilled four holes into the Enfermairas area (reported March 18, 2008 and May 14, 2008), the most significant intersection was 16.5 metres that returned 1.3% copper and 3.1 metres of 1.4% copper. The style of mineralization intersected in 2008 at Enfermarias is very similar to what was discovered in Machados area.
In 2011, the Company expanded the ground magnetic survey by connecting the existing survey at Machados and extending it north to encompass the Enfermarias deposit. Several drill targets have been selected and drilling is currently underway.
click to enlarge |
MA-03 drill core intercept 162 to 174.8 meters
|
| |
)
)
)
