Overview
Stage | Permitting |
Mine Type | Open Pit |
Commodities |
- Copper
- Molybdenum
- Gold
- Silver
|
Mining Method |
|
Mine Life | 11.1 years (as of Jan 1, 2018) |
Copper Flat is a past producing copper, gold, silver project with additional molybdenum resources, and project economics may be affected by fluctuations in the price of those commodities. The Company continues to monitor copper prices as the material commodity of the Copper Flat Project while it works through the permitting process. |
Source:
p. 58
The Project is owned and operated by New Mexico Copper Corporation (NMCC), a wholly owned subsidiary of THEMAC Resources Group Limited.
Contractors
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Deposit Type
- Hydrothermal
- Breccia pipe / Stockwork
- Porphyry
Summary:
Copper Flat is a porphyry copper-molybdenum deposit that is approximately 1,400 by 2,100 ft in plan occurring within a small structurally controlled quartz monzonite stock that has intruded a circular block of andesite approximately 4 miles in diameter. The porphyry includes a variably mineralized west-northwest-trending hydrothermal “breccia pipe,” that lies immediately south of the Patten fault, that is about 1,400 ft long and 500 ft wide.
Copper Flat has been categorized as an alkalic copper-gold bearing breccia pipe, surrounded by and genetically linked to an alkalic porphyry system. The deposit is situated along the eastern edge of the Cretaceous Arizona-Sonora-New Mexico porphyry copper belt and along with Tyrone, New Mexico, forms a linear mineralized feature known as the Santa Rita lineament (SRK, 2010; McLemore et al., 2000). Analogous deposits include Terrane Metal’s Mount Milligan, British Colombia deposit and the Continental breccia pipe located in the Central Mining district of New Mexico (SRK, 2010).
Although copper occurs almost exclusively as chalcopyrite locally accompanied by trace amounts of bornite, minor amounts of chalcocite and copper oxide minerals are locally present near the surface and along fractures. The supergene enrichment typical of many porphyry copper deposits in the Southwest is virtually non-existent at Copper Flat. During the early mining days, a 20- to 50-ft leached oxide zone existed over the ore body, but this mate ........

Summary:
The Copper Flat Project is planned for production using conventional hard rock open pit mining methods. Ore production to the mill is planned at 29,600 tpd (10,800 ktons/yr) for the first 6 years followed by 27,125 tpd (9,900 ktons/yr) for the remaining mine life. The mine production schedule was developed with the goal of filling the mill at required ore rate and maximizing the project return on investment. The total material rate is tied to equipment productivity and amounts to 17,500 ktons/yr or 47,945 tpd for the first 5 years. The mine is scheduled to operate 365 days/yr with two, 12-hour shifts/day.
Bench heights are planned at 25 ft high. Drilling will be completed with three rotary blast hole rigs with 45,000 lb pull down capacity and 6.5 in diameter blast holes. The blasted rock will be loaded into 100-ton haul trucks using two 19 cu yd front end loaders.
Three phases were designed for the Copper Flat Project with approximately 300 ft of operating width on each bench within a phase. Phase 1 was sized to contain roughly 1.5 years of ore.
Mine Planning Parameters:
- Haul Road Width - 90 feet;
- Haul Road Grade - 10% Maximum;
- Inter-ramp Slope Angles: 0° to 90° Northeast - 41 degrees, 90° to Brec Southeast - 39 degrees, Breccia - 36 degrees, Brec to 360° West - 44 degrees;
- Operating width between pushbacks - 300 feet nominal.
Source:

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Flow Sheet:
Summary:

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Projected Production:
Commodity | Product | Units | LOM |
Copper
|
Concentrate
|
kt
| 1,121 |
Copper
|
Payable metal
|
M lbs
| 606 |
Copper
|
Metal in concentrate
|
M lbs
| 628 |
Molybdenum
|
Concentrate
|
kt
| ......  |
Molybdenum
|
Payable metal
|
M lbs
| ......  |
Molybdenum
|
Metal in concentrate
|
M lbs
| ......  |
Gold
|
Payable metal
|
koz
| ......  |
Gold
|
Metal in concentrate
|
koz
| ......  |
Silver
|
Payable metal
|
koz
| ......  |
Silver
|
Metal in concentrate
|
koz
| ......  |
Operational Metrics:
Metrics | |
Daily ore mining rate
| 29,600 tons * |
Annual ore mining rate
| 10,800 k tons * |
Annual processing rate
| 10.8 M tons * |
Stripping / waste ratio
| 0.4 * |
Waste tonnes, LOM
| 44,682 k tons * |
Ore tonnes mined, LOM
| 113,084 k tons * |
Total tonnes mined, LOM
| 157,766 k tons * |
Tonnes processed, LOM
| 113,084 k tons * |
* According to 2018 study.
Reserves at October 7, 2013:
Mineral Reserves: Variable By Year NSR cutoff grade of $12.75/ton to $6.11/ton.
Mineral Resources: NSR cutoff grade of $6.11/ton.
Category | Tonnage | Commodity | Grade | Contained Metal | Recoverable Metal |
Proven
|
78,857 k tons
|
Copper
|
0.32 %
|
504,685 k lbs
|
432,538 k lbs
|
Proven
|
78,857 k tons
|
Molybdenum
|
0.01 %
|
15,771 k lbs
|
9,169 k lbs
|
Proven
|
78,857 k tons
|
Gold
|
0.003 oz/ton
|
237 koz
|
117 koz
|
Proven
|
78,857 k tons
|
Silver
|
0.07 oz/ton
|
5,520 koz
|
3,424 koz
|
Probable
|
34,227 k tons
|
Copper
|
0.25 %
|
171,135 k lbs
|
146,670 k lbs
|
Probable
|
34,227 k tons
|
Molybdenum
|
0.007 %
|
4,792 k lbs
|
2,786 k lbs
|
Probable
|
34,227 k tons
|
Gold
|
0.003 oz/ton
|
103 koz
|
51 koz
|
Probable
|
34,227 k tons
|
Silver
|
0.04 oz/ton
|
1,369 koz
|
849 koz
|
Proven & Probable
|
113,084 k tons
|
Copper
|
0.3 %
|
675,820 k lbs
|
579,208 k lbs
|
Proven & Probable
|
113,084 k tons
|
Molybdenum
|
0.009 %
|
20,563 k lbs
|
11,955 k lbs
|
Proven & Probable
|
113,084 k tons
|
Gold
|
0.003 oz/ton
|
340 koz
|
168 koz
|
Proven & Probable
|
113,084 k tons
|
Silver
|
0.06 oz/ton
|
6,889 koz
|
4,273 koz
|
Measured
|
126,655 k tons
|
Copper
|
0.28 %
|
709,268 k lbs
|
|
Measured
|
126,655 k tons
|
Molybdenum
|
0.009 %
|
22,798 k lbs
|
|
Measured
|
126,655 k tons
|
Gold
|
0.003 oz/ton
|
380 koz
|
|
Measured
|
126,655 k tons
|
Silver
|
0.06 oz/ton
|
7,599 koz
|
|
Indicated
|
178,571 k tons
|
Copper
|
0.19 %
|
678,570 k lbs
|
|
Indicated
|
178,571 k tons
|
Molybdenum
|
0.005 %
|
17,857 k lbs
|
|
Indicated
|
178,571 k tons
|
Gold
|
0.002 oz/ton
|
357 koz
|
|
Indicated
|
178,571 k tons
|
Silver
|
0.04 oz/ton
|
7,143 koz
|
|
Measured & Indicated
|
305,226 k tons
|
Copper
|
0.23 %
|
1,387,838 k lbs
|
|
Measured & Indicated
|
305,226 k tons
|
Molybdenum
|
0.007 %
|
40,655 k lbs
|
|
Measured & Indicated
|
305,226 k tons
|
Gold
|
0.002 oz/ton
|
737 koz
|
|
Measured & Indicated
|
305,226 k tons
|
Silver
|
0.05 oz/ton
|
14,742 koz
|
|
Inferred
|
27,646 k tons
|
Copper
|
0.2 %
|
110,584 k lbs
|
|
Inferred
|
27,646 k tons
|
Molybdenum
|
0.004 %
|
2,212 k lbs
|
|
Inferred
|
27,646 k tons
|
Gold
|
0.001 oz/ton
|
28 koz
|
|
Inferred
|
27,646 k tons
|
Silver
|
0.02 oz/ton
|
553 koz
|
|
Mine Management:
Job Title | Name | Profile | Ref. Date |
.......................
|
.......................
|
|
Apr 9, 2020
|
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Staff:
Total Workforce | Year |
|
2019
|
Corporate Filings & Presentations:
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