REPORT ON 2010 DRILLING AND MAPPING PROGRAMS, EASTMAIN MINE PROJECT. GM 66611, 2012. 3242 pages et 83 plans.
GERBER, W.., ROBINSON, D. J.



Résumé

This report summarizes the 2010 drill and mapping programs completed on the Eastmain Mine Property. The program consists of 46 diamond drill holes, totaling 14 584 metres. The drill program focuses on the "Mine Series" rock of the Eastmain Gold Deposit, which is a Gold-Silver-Copper system. The field exploration program consists of geological mapping and prospecting in the north-west portion of the Mine Trend. The 46 drill holes were completed within the three designated zones of the Eastmain deposit (respectively 14, 19 and 2 holes in the A, B and C zones), and 11 additional holes have drill-tested several regional geophysical targets. Drilling on the three zones of the deposit systematically intersected the Mine Series Package, defined as a highly sheared mix of ultramafic flow, rhyolitic tuff, altered basalt and recrystallized quartz vein intervals. Those highly silicified horizons ("chert" from previous logging) are mineralized with chalcopyrite, pyrrhotite, pyrite and visible gold, and contain anomalous gold, silver and copper with up to 12.16 g/t Au and 15.68 g/t Ag over 9.5 m. A total of 93 drill hole samples contain more than 1 g/t Au, with a maximum value of 101 g/t Au. Drilling the Mine Series typical lithologies, anomalous gold-silver-copper intersections, as well as visible gold samples, confirm the vertical and lateral extension of the three main zones (A, B and C) of the Eastmain Deposit. The two holes drilled in the C zone intersected new mineralized intervals in the hanging wall of the Mine Series, and led to new targeting. Outside of the Mine Series, some exploration holes drilled 2 km W of the NW Mine Trend intersected multiple mineralized intervals of silicified basalt, with up to 1.84 g/t Au and 2.47 g/t Au over 5.46 m. In the same NW grid, 21 rock samples contain more than 1 g/t Au, including 7 samples > 5 g/t Au with a 33.3 g/t Au highest value. Both drilling and mapping results prove again that gold-rich zones are not only related to the Mine Trend, and reinforce the regional exploration prospects.

Détails

Type de document

Document des compagnies d'exploration minière
Travaux statutaires

Domaine d'activité

Sondages
Géologie générale
Géochimie

Type de levé

Analyse de roche
Levé géologique
Analyse de sol
Sondage au diamant

Renvoi

Voir aussi GM 73392

Type de document

Document des compagnies d'exploration minière
Travaux statutaires

Domaine d'activité

Sondages
Géologie générale
Géochimie

Type de levé

Analyse de roche
Levé géologique
Analyse de sol
Sondage au diamant

Renvoi

Voir aussi GM 73392