Details


SMDI #
1715
Current Showing Name
Eagle Point Mine
Historical Showing Names
Eagle Point Mine, Eagle Point Uranium Mine
Company Name
Cameco Corporation
Project Name
Rabbit Lake
UTM Easting (NAD83 Z13)
581809.9000
UTM Northing (NAD83 Z13)
6462247.0700
NTS Sheet
064L05
TRM (Township-Range-Meridian)
107-10-2
Primary Commodities
Uranium
Associated Commodities
Copper, Graphite, Iron, Lead, Molybdenum
Discovery Type
Status
Deposit: Production (Care and Maintenance)
Geological Details
The Eagle Point deposit occurs along the Eagle-Collins Bay Fault system and is approximately 3.5 km (2.18 miles) northeast of and along strike with the Collins Bay A Zone. The ore occurs in a series of erratic lenses which plunge at 30° or more to the northeast. The 2 to 40 ft (0.,6 to 12.2 m) thick, concordant and discordant lenses occur within the hanging wall of the Collins Bay Fault within Aphebian metasediments. The following is a list of the geological features which are associated with this orebody: 1. It appears to be of fault control. Breccia zones are present. 2. The ore appears to be associated with two quartzite layers. This is seen on Section 5 (L. 404+00N) and Section 7 (L. 406+00N). 3. Graphite occurs in rocks close to the ore. Both the Eagle Point Shear Zone and the Collins Bay faults are graphitic. 4. Zones of alteration are present. The altered zones are not brecciated. White or red, hematitic clays are normal alteration products although green alteration colors are present. The alteration zones may be barren or mineralized with blebs or patches of pitchblende. 5. The basic rock type is pelite. It is a quartz-biotite gneiss with sub-conformable quartz-feldspar rich layers - the lowest graphitic unit of the Wollaston Supergroup. 6. Yellow staining is found in the mineralized zones. 7. The Eagle Point Shear Zone dips at 50°-60°E and probably converges with the Collins Bay Fault at depth. The deposit consists of a series of moderately to steeply dipping lenses, pods, and veins within a 300 m (984.3 ft) sequence of folded and metamorphosed Paleoproterozoic rocks in the hanging wall of the Collins Bay Thrust. The deposit is elongated in plan, trends northeast-southwest and is 1,100 m (3,600 ft) long by 305 m (1,000 ft) wide. The structurally-controlled deposit dips 45°SE to a known depth of 425 m (1,400 ft). The ore zone, 65% of which occurs between the 120 m and 335 m (394and 1100 ft) levels, is enclosed in an up to 60 m (196.9 ft) thick envelope. The ore occurs as fault/fracture infillings and as impregnations in moderately to highly altered paragneiss and pegmatoid segregations. Mineralogically, the ore consists of several generations of uraninite and pitchblende. Boltwoodite [K2(UO2)2(SiO3)2.5H2O] occurs locally as an alteration product. Minor amounts of coffinite [U(SiO4)1-x(OH)4x], galena, native copper, weeksite [K2(UO2)2(Si2O5)3.4H2O], uranophane [Ca(UO2)2Si2O7.6H2O], marcasite, chalcopyrite, bornite, covellite, digenite [Cu9S5], and bravoite [(NiFe)S2] are present and consitiute less than 5% of the ore. The ore also contains small sooty blebs and buttons of carbon. The ore contains no arsenic and only very minor amounts of nickel. The ore zones are surrounded by moderately to strongly developed illite-dominated and illite-chlorite-clay alteration and hematization.
Geological Domain
Wollaston
Host Rocks
Host Minerals
Molybdenite
Indicators
Exploration History
12/1/2023 Eagle Point–Rabbit Lake (Cameco) operations will remain in a safe state of care and maintenance pending improvement in market conditions. (Saskatchewan Exploration and Development Highlights 2023, p.7) (See also Reserves/Resources, from Saskatchewan Exploration and Development Highlights 2023, Table 2, p.8) 12/1/2024 (See Reserves/Resources, from Saskatchewan Exploration and Development Highlights 2024, Table 3, p.8-9) 7/14/1988 In 1975, airborne EM, magnetic and radiometric surveys were flown over the showing area (AF 64L05-SE-0016 and 64L05-SE-0017). In 1978, ground HLEM, VLF and HLEM surveys were completed over the Eagle Deposit area and follow-up reconnaissance drill holes were completed. In 1979, Gulf Minerals continued the program of reconnaissance drilling to test geophysical conductors. In 1980, the Eagle Point Deposit was located by means of a dispersion train in the overburden. About 158 holes on 100 centres were drilled in winter 1980 between lines 379+00N and 424+00N in the area. The orebody lies mainly between grid line 383+00N and grid line 399+00N. The Eagle Shear fault plane lies above and subparallel to the Collins Bay Shear Zone south of line 396+00N. Most of the uranium ore lies above the Eagle Point Shear Zone although some ore occurs in the shear zone itself. In 1981, Eldorado Resources completed a 16 hole deposit delineation program on the Eagle Deposit (AF 64L05-SE-0086). In 1987, the ore-reserves for the North Zone and the South Zone were calculated and published in the 1987 C.I.M.M. Directory. The Eagle Point Deposits have drill intersections that vary from 0.059% to 6.550% U3O8. The 1990, mineable reserves figures for the combined Eagle North and South deposits and the in-situ reserves were published (The Prospect -May 1990). In 1989, Cameco completed development work towards test mining the deposits. The collar of the access decline was excavated and site preparation for ore stockpiles, waste stockpiles and the minewater settling pond commenced. In June of 1991, the decline construction commenced. By 1 August 1992, the test mine development included a 1400 m (4953.2 ft) long 4.3 m (14.1 ft) by 5.5m (18.1 ft) ramp connecting the surface portal to horizontal drifts at 120 m and 180 m plus fresh air and exhaust raises. Non-entry test mining of the first stope using large diameter blast hole mining commenced in July of 1992. At this time, the mineable reserves were given as 3,380,000 tonnes of ore grading 0.8% U plus geological reserves were reported. The projected mining plan included the development of access drifts in the hangingwall above and below the stope blocks, the development of a draw point cross-cut on the lower hangingwall, the development of drill drifts, and stope mining by vertical blast-hole techniques. Backfill will consist of cemented waste rock By July 1992, the test mine decline had reached the 180 m level, horizontal drifts had been driven at the 120 m and 180 m levels, and exhaust and fresh air raises had been completed. Mining using remote-controlled LHDs (non-entry large diameter blast hole type with delayed fillings) is envisioned. Test mining was completed between 1992 and 1993 - all ore was processed through the Rabbit Lake mill. The summary of 1991 to 1993 underground activities is in assessment file 64L05-0114. On 24 February 1993, Cameco reported the mineable and geological reserves of Eagle Point deposit. This figure is substantially lower than previous reserves due to the discovery that the ore was found to be contained in a number of high grade, separate, vertical structures. In 1998, Cameco completed drill holes PI-29 to PI-31 on the Eagle Point grid between the Eagle Point Mine and the Collins A Zone to test the Collins Bay Thrust (AF 64LK04-0110). At the end of 2000, Cameco ceased production from the mine. Production resumed in August of 2002.
Production History
Production Period: 2014-01-01 to 2014-12-31 2014 production was 4.2 M lb U3O8 and 2015 production is estimated at 3.9 M lb U3O8. Summary: - Uranium: 4,200,000.00 lb Production Period: 2006-01-01 to 2006-12-31 313,100.00 tonnes EAGLE POINT URANIUM MINE MINE PRODUCTION AND PROCESSING FIGURES _____________________________________________________________________________ YEAR MINE PRODUCTION FIGURES | MILL FEED FIGURES DEPOSIT TONNES TONNES TPD KILOGRAMS | TONNES KILOGRAMS MILL RECOV RESERVES WASTE ORE MINED U3O8 | FEED U3O8 GRADE RATE FIGURES ______________________________________|______________________________________ 1992 ------- 20,085 --- 434,116 | ------ ------- ---- ---- 27,523,000 1993 260,649 43,901 834 982,067 | 39,011 673,330 1.73 95.6 42,523,000 1994 171,068 192,779 997 4,042,454 | 90,101 2,835,790 3.15 97.9 38,622,000 1995 101,649 158,708 713 4,693,887 |203,440 3,893,120 1.91 98.5 34,483,000 1996 271,203 252,676 1,435 2,396,167 |234,271 4,345,181 1.85 97.3 25,280,000 1997 154,916 328,821 1,325 3,744,162 |146,648 1,700,291 1.16 95.3 28,680,000 1998 152,768 219,816 1,021 2,082,253 |177,639 2,433,501 1.37 96.9 28,961,000 1999 6,614 55,002 NIL 1,059,475 |154,170 1,714,904 1.11 97.1 25,178,000 2000 NIL 76,498 NIL 631,273 |183,550 1,513,823 0.82 97.1 20,567,000 2001 NIL 69,068 NIL 431,307 |137,524 1,183,221 0.86 97.3 18,943,000 2002 83,000 91,616 950 885,665 | 98,228 744,121 0.76 96.8 17,580,000 2003 166,181 214,400 1,042 2,338,130 |278,451 2,651,437 0.95 97.1 12,490,000 2004 217,290 223,883 1,209 2,463,900 |246,164 2,568,293 1.04 96.5 14,229,000 2005 256,500 245,300 1,375 2,480,000 |311,900 2,756,900 0.88 97.0 10,990,000 2006 200,000 238,800 1,202 2,292,500 |313,100 2,325,400 0.78 96.6 19,115,000 ______________________________________|______________________________________ Summary: - Uranium: 2,325,400.00 kilograms @ 0.88 % Production Period: 2005-01-01 to 2005-12-31 311,900.00 tonnes Summary: - Uranium: 2,756,900.00 kilograms @ 0.88 % Production Period: 2004-01-01 to 2004-12-31 246,164.00 tonnes Summary: - Uranium: 2,568,293.00 kilograms @ 1.04 % Production Period: 2003-01-01 to 2003-12-31 278,451.00 tonnes Summary: - Uranium: 2,651,437.00 kilograms @ 0.95 % Production Period: 2002-01-01 to 2002-12-31 98,228.00 tonnes Summary: - Uranium: 744,121.00 kilograms @ 0.76 % Production Period: 2001-01-01 to 2001-12-31 137,524.00 tonnes In 2001, screening of mineralized waste produced ore grade material. Summary: - Uranium: 1,183,221.00 kilograms @ 0.86 % Production Period: 2000-01-01 to 2000-12-31 183,550.00 tonnes NOTE: In 2000, a re-estimate of in situ reserves was performed. In the years 2000 and 2001, the production figures correspond to stockpile adjustments following milling and surveys. Summary: - Uranium: 1,513,823.00 kilograms @ 0.82 % Production Period: 1999-01-01 to 1999-12-31 154,170.00 tonnes Summary: - Uranium: 1,714,904.00 kilograms @ 1.11 % Production Period: 1998-01-01 to 1998-12-31 177,639.00 tonnes Summary: - Uranium: 2,433,501.00 kilograms @ 1.37 % Production Period: 1997-01-01 to 1997-12-31 146,648.00 tonnes Summary: - Uranium: 1,700,291.00 kilograms @ 1.16 % Production Period: 1996-01-01 to 1996-12-31 234,271.00 tonnes Summary: - Uranium: 4,345,181.00 kilograms @ 1.85 % Production Period: 1995-01-01 to 1995-12-31 203,440.00 tonnes Summary: - Uranium: 3,893,120.00 kilograms @ 1.91 % Production Period: 1994-01-01 to 1994-12-31 90,101.00 tonnes Summary: - Uranium: 2,835,790.00 kilograms @ 3.15 % Production Period: 1993-01-01 to 1993-12-31 39,011.00 tonnes On June of 1991, the sinking of a decline commenced.Test mining was completed between 1992 and 1993. Commercial production commenced in 1993 and continued until 1998. Mining was temporarly stopped in 1999. Summary: - Uranium: 673,330.00 kilograms @ 1.73 %
Reserves and/or Resources
2024-12-01 Summary: Eagle Point: Measured and Indicated Mineral Resource - Uranium: 38,600,000.00 lb @ 0.95 % Eagle Point: Inferred Mineral Resource - Uranium: 33,700,000.00 lb @ 0.62 % 2023-12-01 Summary: Eagle Point: Inferred Mineral Resource of 33,700,000.00 lb - Uranium @ 0.62 % Eagle Point: Measured and Indicated Mineral Resource of 38,600,000.00 lb - Uranium @ 0.95 % 2021-12-31 Summary: Eagle Point: Indicated Mineral Resource of 1,836,500.00 tonne - Uranium: 38,600,000.00 lb @ 0.95 % Eagle Point: Inferred Mineral Resource of 2,460,900.00 tonne - Uranium: 33,700,000.00 lb @ 0.62 % 2015-01-01 As of 2015 the NI 43-101-compliant Reserve was 1,132,650 tonnes grading 0.61% U3O8 for 15.2 M lb U3O8, the Measured and Indicated Resource was 1,345,450 tonnes grading 0.75% U3O8 for 22.2 M lb U3O8, and the Indicated Resource was 2,029,800 tonnes grading 0.58% U3O8 for 25.9 M lb U3O8. Summary: Indicated Mineral Resource of 2,029,800.00 tonne - Uranium: 25,900,000.00 lb @ 0.58 % Measured and Indicated Mineral Resource of 1,345,450.00 tonne - Uranium: 22,200,000.00 lb @ 0.75 % 2005-01-01 Reserves of 14.2 M lbs grading 1.35% U3O8. Mineable resource of 4.0 M lbs U3O8 grading 0.59% U3O8. Summary: Mineable resource: Historic reserve (unspecified) of 4,000,000.00 lb - Uranium: 4,000,000.00 lb @ 0.59 % Historic resource (unspecified) of 14,200,000.00 lb - Uranium: 14,200,000.00 lb @ 1.35 % 2002-01-01 Reserves of 6731 t U (17.5 M lb U3O8) at a grade of 1.06% U. Summary: Historic resource (unspecified) of 6,731.00 tonne - Uranium: 17,500,000.00 lb @ 1.06 % 1993-02-24 Mineable reserves: 787,000 tonnes ore grading 1.65% U3O8 (28,400,000 lbs U3O8). Geological reserves: 1,156,000 tonnes ore grading 1.41% U3O8 (35,900,000 lbs U3O8). Summary: Mineable reserves: Historic reserve (unspecified) of 787,000.00 tonne - Uranium: 787,000.00 tonne @ 1.654 % Geological reserves: Historic reserve (unspecified) of 1,156,000.00 tonne - Uranium: 1,156,000.00 tonne @ 1.41 % 1992-07-01 Mineable reserves: 3,380,000 tonnes U3O8 grading 0.8% U. Geological reserves: 2,260,000 tonnes grading 0.89% U. Summary: Geological reserves: Historic reserve (unspecified) of 2,260,000.00 tonne - Uranium: 2,260,000.00 tonne @ 0.89 % Mineable reserves: Historic reserve (unspecified) of 3,380,000.00 tonne - Uranium: 3,380,000.00 tonne @ 0.8 % 1990-01-01 Combined North and South Zones mineable: Reserves: 70,000,000 pounds U3O8 grading 0.94% uranium. In situ mineable reserves: 52,000,000 pounds U3O8 with at 1.05% uranium. South Zone: 30,000 tonnes uranium with an average grade of 1.5% U3O8. Summary: South Zone: Historic reserve (unspecified) of 30,000.00 tonne - Uranium: 30,000.00 tonne @ 1.5 % In situ mineable reserves: Historic resource (unspecified) of 52,000,000.00 lb - Uranium: 52,000,000.00 lb @ 1.05 % Combined North and South Zone Mineable: Historic resource (unspecified) of 70,000,000.00 lb - Uranium: 70,000,000.00 lb @ 0.94 % 1987-01-01 North Zone: 20,000 tonnes uranium with an average grade of 2.2% U3O8. Summary: Historic reserve (unspecified) of 20,000.00 tonne - Uranium: 20,000.00 tonne @ 2.2 %
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