• Rouyn Property
• Overview
• Geological Setting
• Augmitto and Cinderella Blocks
• Overview
• Previous Work
• Recent Work
• Lake Gamble Block
• Astoria Block
• Overview
• Previous Work
• Recent Work
• Wright-Rouyn, Durbar & Lake Bouzan Blocks
• Exploration Calendar

The Astoria Block lies to the east of the Lake Gamble Block, and hosts the Astoria gold deposit.

Geology

The Astoria Block lies in the Rouyn-Beauchastel segment of the Cadillac-Larder Lake Break, which represents the eastern extension of the Kerr-Addison mine horizon in Ontario and hosts nine known gold deposits. The Astoria deposit is therefore situated in a structural and geological setting very similar to that of the Kerr-Addison mine, which produced about 11 million ounces of gold during its 58-year production life.

All the gold-bearing zones of the Astoria deposit are located within or at the southern contact of the Cadillac-Larder Lake Break, clustered adjacent to a diabase dyke. The gold occurs in both carbonate and silicified meta-sediments (footwall zone). Five zones have been identified to date: A, Ae, Aw, B and Bw. Click here for a close-up view of zones A and Aw.

History

Exploration was carried out on the Astoria claims in the 1930s and 1940s. Yorbeau acquired the property in 1984 and proceeded to conduct extensive surface and underground exploration over the next decade.