Overview
Stage | Production |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Processing |
- Flotation
- Concentrate leach
- Merrill–Crowe
- Cyanide (reagent)
|
Mining at Stog’er Tight began in Q1 of 2018 and continued into the middle of 2019. The mining operation was undertaken using the same mining and grade control methods that were employed at Pine Cove. Ore was stockpiled at Stog’er Tight prior to transport to the Pine Cove Mill for processing. Stog’er Tight is currently subject to a percussion and diamond drill program. |
Latest News | Anaconda Mining Continues to Expand The Stog’er Tight Deposit, Intersecting 4.37 G/T Gold Over 15.0 Metres... August 18, 2020 |
Source:
p. 9
The Company owns 100% of the Point Rousse Project.
Deposit Type
- Vein / narrow vein
- Orogenic
Summary:
The Point Rousse Complex is host to orogenic style gold mineralization. Mineralization comprises both vein-hosted and altered-wall rock or replacement styles of mineralization and both exhibit features common to orogenic gold deposits. The mineralization is typically structurally controlled and developed within subsidiary deformation zones, such as the Scrape Trust Fault, to major regional structures, like the Baie Verte – Brompton Line fault. Gold mineralization is intimately associated with disseminated and massive pyrite within the host rock indicating that iron rich rocks are an important precursor to mineralization. Alteration within mafic volcanic and gabbroic rocks can be is characterized by albitization and carbonitization. Iron and titanium rich lithologies associated with the Scrape Thrust are typical host rocks.
The Point Rousse gold mineralization exhibits relatively narrow, but distinctive alteration haloes dominated by Fe-carbonate, albite, sericite, chlorite and leucoxene (Plate 9). The ore mineralogy is relatively simple and is generally comprised of non-refractory gold either as free gold or as coatings on, or along fractures/grain boundaries in pyrite. Silver and base metals can be present in minor amounts and the deposits typically exhibit only trace arsenic.
The Project covers three prospective gold trends: the Scrape Trend, the Goldenville Trend and the Deer Cove Trend. These trends have approximately 20 km of cumulative strike length and include three deposits and numerous prospects and showings all located within 8 km of the Pine Cove Mine and Mill.
The Scrape Trend consists of a prospective belt of rocks approximately 7 km long and 1 km wide.
Mineralization within the Scrape Trend is typical of orogenic greenstone-hosted gold. The fault, where observed is not mineralized, but secondary structures adjacent to the fault zone can host gold, such as the deformation zone which hosts the Pine Cove Deposit as well as the structures hosting the Stog’er Tight Deposit.
The Stog’er Tight area is host to several gold prospects including the; Stog’er Tight Deposit and its East and West extensions, the Gabbro, Gabbro East, Gabbro West, South and Cliff zones, The geological setting of the Stog’er Tight area is characterized by volcaniclastic, sedimentary and intrusive rocks, which form part of the cover sequence of Snooks Arm Group.
The gold within the Stog’er Tight Deposit occurs as fine-grained (<.05 mm) micro veinlets and disseminated blebs within the coarse pyrite aggregates. Visible gold was observed as rare very delicate flakes localized within weathered-out pyrite cubes and in narrow quartz veins. Generally, higher grades are associated with coarse mottled pyrite.
Summary:
Development of the Stog’er Tight mine will include two adjacent open pits: The West and East pits. Approximately 1,100,000 tonnes of material will be mined while developing the West pit, followed by 533,000 tonnes of material while expanding the East pit.
Once west pit is exhausted, waste rock from East pit would be placed into it to about 6 metres below water level. The exhausted east pit will also expand the existing Fox Pond to have larger pond footprint.
Equipment at Stog’er Tight will be operated by the same contractors as the Pine Cove site: Bailey and NL Hardrok.
The mining operation at Stog’er Tight will stockpile the ore on the Stog’er Tight property initially. A separate activity will transport ore from Stog’er Tight to Pine Cove mill for processing. This material will be stockpiled in the same location as the current Pine Cove ore.
Processing
- Flotation
- Concentrate leach
- Merrill–Crowe
- Cyanide (reagent)
Flow Sheet:
Summary:
The Pine Cove Mill operates as a grind/flotation circuit followed by leaching. Comminution is via a two-stage crushing plant followed by a 10 ft by 14 ft primary ball mill, which processes an average of 1,340 tonnes per day of ore. Cyclone overflow feeds the flotation circuit, with 3 column cells for roughing, 1 scavenger/staged reactor cell, and one cleaner cell. The concentrator has a flotation circuit which produces a gold-pyrite concentrate that advances to the leach circuit. Mass concentration is typically 2-4%, with a recovery of 92-93%. Flotation concentrate is thickened in a 4.5 m diameter thickener and reground in a 5.5 ft diameter ball mill down to a P80 of 20 microns. Leaching is conducted in a series of four 70 m3, mechanically-agitated leach tanks. Two drum filters and a Merrill Crowe circuit are used for gold recovery from the pregnant solution.
The mill process at the Pine Cove site consists of 6 major systems: crushing, grinding, flotation, leaching, drum fi ........

Recoveries & Grades:
Commodity | Parameter | 2016 |
Gold
|
Head Grade, g/t
| 2.22 |
Reserves at December 31, 2017:
Category | Tonnage | Commodity | Grade | Contained Metal |
Probable
|
191,500 t
|
Gold
|
2.39 g/t
|
14,740 oz
|
Probable
|
191,500 t
|
Gold
|
2.39 g/t
|
14,740 oz
|
Indicated
|
204,100 t
|
Gold
|
3.59 g/t
|
23,540 oz
|
Indicated
|
204,100 t
|
Gold
|
3.59 g/t
|
23,540 oz
|
Inferred
|
252,000 t
|
Gold
|
3.3 g/t
|
26,460 oz
|
Inferred
|
252,000 t
|
Gold
|
3.3 g/t
|
26,460 oz
|
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