Details


SMDI #
2627
Current Showing Name
Roy Lloyd Mine
Historical Showing Names
Bingo Structure: Bingo North Au Showing, Bingo South Au Showing, and Bingo East Au Showing, Roy Lloyd Mine
Company Name
Golden Band Resources Inc.
Project Name
Dickens West
UTM Easting (NAD83 Z13)
516759.3900
UTM Northing (NAD83 Z13)
6172939.3800
NTS Sheet
073P10
TRM (Township-Range-Meridian)
77-18-2
Primary Commodities
Gold
Associated Commodities
Copper, Iron, Silver, Zinc
Discovery Type
Outcrop Grab
Status
Deposit: Post-Production
Geological Details
The Bingo North Showing is located 0.55 km (0.34 mile) south-southeast of 1990 grab sample DK90-1069 or SMDI 2500 at Dickens West grid coordinates 4+30S to 4+75S and 1+50E. The showing area, as mapped by D.J. Thomas in 1986, is underlain by Unit G6b or the biotite-hornblende leucodiorite and quartz diorite phase of the Bernaski Bay Pluton. This pluton sharply intrudes a series of Central Metavolcanic Belt metavolcanic assemblages along its southeast, northeast, and southwest contacts. Intrusion breccias are generally well developed in these areas. The northeastern contact with the metavolcanics is highly embayed and, in this region, a series of small stock-like bodies intrude the metavolcanics close to the contact. These stocks may be small cupolas related to the Bernaski Bay Pluton. The northwestern pluton-metavolcanic contact, which is poorly defined, is marked by a broad migmatitic aureole. The Bernaski Bay Pluton consists of a granitic suite of rocks which ranges gradationally in composition from granodiorite through quartz monzonite to granite. Leucodiorite and quartz diorite form a semicontinous marginal phase of the pluton which can vary from a few metres to over 2 km (1.2 miles) in width. Locally, this marginal rim can grade abruptly into dioritic gabbro and gabbro. The northwestern portion of the Bernaski Bay Pluton consists of a series of interbanded granodioritic to tonalitic gneisses and younger massive quartz monzonite and granite. A series of mafic dykes, which appear to act as loci of later shearing and quartz vein emplacement, occur in the western portion of the pluton. The Bingo North Showing resides in a 160°-trending, 65 m (213.3 ft) long zone of intense deformation which also hosts the Firepit and Lovely gold showings. Within this zone of deformation, which cross-cuts Bernaski Bay Pluton medium-grained hornblende diorite, drag fold axial planes trend 030°/74°NW and plunge vertically. The showing consists of 1 to 2% pyrrhotite plus coarse blebs of pyrite±chalcopyrite within shear-hosted quartz veining and quartz-filled tension gashes. Gold can be panned from soil at the showing site. The Bingo South Showing is located 25 m (82.0 ft) to the southeast at grid coordinates 4+75S and 1+50E. The showing consists of a 20 cm (7.9 inch) wide quartz vein which is oblique to and within the same zone of deformation which hosts the Bingo North Showing. Up to 2% pyrrhotite, clots of pyrite±chalcopyrite, and minor visible gold occur within the quartz veining. Gold can be panned from soil samples taken at this showing. SAMPLE SHOWING OZ/TON PPM PPM PPM PPM PPM PPM NUMBER NAME AU AG CU ZN MO NI AS ________________________________________________________________ BC-10-19-1 North 1.240 12.0 160 11 60 2 <1 BC-10-19-2 North 0.266 2.8 310 69 <2 6 <1 SH-10-20-1 North 0.122 0.8 220 19 1 11 1 WF-10-1-4 South 0.958 6.2 23 3 4 1 <1 WF-10-19-1 South 0.362 1.8 68 6 <2 <1 <1 DRILLHOLE INTERSECTION WIDTH PPB OZ/TON PPM INTERSECTION NUMBER (M) (M) AU AU CU DESCRIPTION _____________________________________________________________________________ WD-01 25.5 - 26.0 0.5 >1000 0.682 280 Narrow shear zone 27.0 - 28.0 1.0 >1000 0.068 680 Bingo Shear Zone 88.5 - 89.0 0.5 >1000 0.066 450 Pyrite in diorite 117.5 - 118.0 0.5 >1000 0.236 --- Pyrite in diorite WD-02 28.3 - 31.3 3.0 >1000 0.370 780 Bingo Structure (incl) 29.3 - 29.8 0.5 >1000 1.260 3000 Pyrite in diorite WD-03 74.0 - 74.5 0.5 >1000 1.330 970 Pyrite in diorite 75.5 - 76.0 0.5 >1000 0.082 1100 Pyrite in diorite WD-04 73.5 - 74.0 0.5 >1000 0.148 --- Pyrite in diorite 74.0 - 74.5 0.5 ----- 0.070 --- Pyrite in diorite The Bingo East Showing was located 240 m (787.4 ft) east of the Bingo North Showing at grid coordinates 3+00S and 3+40E during the followup of a 1992 soil sample which returned 60 ppb Au. The showing consists of visible gold within a 2 m (6.6 ft) wide by 175 m long (minimum), northwest-striking, mineralized shear zone which cuts hornblende monzonite to diorite. The mineralized structure, which dips steeply to the west and which strikes 160° at the south end and 165° at the north end, contains rusty sheared material, ribbony quartz, quartz veins, and sulphides (py>cpy>po). The better grab samples returned: SAMPLE OZ/TON PPM PPM PPM PPM PPM PPM NUMBER AU AG CU PB ZN MO AS ____________________________________________________ WD93R-069 0.326 6.6 1800 6 33 7 <20 WD93R-070 0.280 6.4 400 4 52 57 <20 The better trench channel samples taken returned: SAMPLE SAMPLE OZ/TON SAMPLE SAMPLE OZ/TON NUMBER WIDTH AU NUMBER WIDTH AU ________________________ ________________________ 51 65 cm 0.101 57 80 cm 0.442 52 70 cm 0.284 60 70 cm 0.086 53 80 cm 0.109 61 80 cm 1.580 54 100 cm 0.134 81 50 cm 0.042 56 80 cm 0.109 The Bingo Structure, at present, has an average width of 2.8 m (9.2 ft) along a strike length of 285 m (935.0 ft). It dips 73°WSW and is open down plunge and along strike. The gold-sulphide mineralization in the Bingo Structure, which is a pyrite-pyrrhotite-chalcopyrite±sphalerite association, has a good correlation between sulphide content and gold grade. Hydrothermal alteration associated with the mineralization includes wallrock silicification, potassic (biotitic) alteration, epidotization, and chloritization. The mineralized shear zone at the Bingo South Showing is up to 6 m (19.7 ft) wide and is marked by a strong potassic (biotite) alteration enveloppe. The shear zone strikes between 0° and 340°, dips steeply to the west, and plunges steeply to the northwest. The zone is one of a series of en echelon shears. The Bingo North, Bingo East, Zero, and Thunderhill showings occur on other en echelon shears within the Bingo Structure.
Geological Domain
La Ronge
Host Rocks
Host Minerals
Pyrite, Pyrrhotite
Indicators
Exploration History
12/1/2023 Operation was suspended in 2014; values are approximate; includes production from the Roy Lloyd, EP and Komis mines. (From Saskatchewan Exploration and Development Highlights 2023, Tables 3 & 4, p.11-12) 12/1/2024 (See Reserves/Resources, from Saskatchewan Exploration and Development Highlights 2024, Tables 6-7, p.12-13) 4/7/1995 In 1966, the showing area was covered by an airborne EM and magnetic survey flown by Noranda Exploration Company Limited (AF 73P10-0055). In 1977, SMDC flew an INPUT and magnetic survey over the showing area (AF 73P16-0022). On 14 September 1980, SMDC staked the showing area as CBS 3125. In 1981, SMDC flew an airborne INPUT and magnetic survey over the showing area (AF 73P10-0073). In 1982, SMDC completed a regional program of geological mapping, prospecting, and rock, silt, soil, and humus sampling (AF 73P10-0078). This work led to the discovery of the gold mineralization that has been named the JB Showing or SMDI 2285. In 1983, SMDC completed ground EM and magnetic surveys (AF 73P10-0080), and geological mapping, prospecting, and rock and overburden sampling in the Dickens-Esmay area to the north of the showing area (AF 73P10-0081). In 1984, SMDC completed further geological mapping, and rock and humus sampling on this portion of the Dickens-Esmay grid (AF 73P10-0083). This work led to the discovery of the Dickens A and B showings and the MH-1 Showing. In 1985, SMDC completed drilling on the Dickens A and B showings and on the MH-1 Showing (AF 73P10-0084). In the same year, further reconnsissance mapping and soil and till sampling were completed over the Dickens Lineament portion of the Dickens-Esmay grid (AF 73P10-0085). In the following year, D.J. Thomas re-mapped the NTS block at 1:20,000 for the Saskatchewan Geological Survey. In 1988, B.P. Scott prepared a 1:250,000 scale compilation metallogenic map of NTS 73P/73I for the Saskatchewan Geological Survey. In 1989, Cameco completed reconnaissance geological mapping, prospecting, and rock sampling over the grid which covers the southern portion of CBS 3125 (AF 73P15-0083). This work resulted in the taking of the grab samples which constitute SMDI 2501. In 1991, Cameco (50%) and Uranerz Exploration and Mining Company Limited (50%) completed geological mapping, prospecting, and rock and bulk till sampling on the Dickens West grid in the immediate showing area (AF 73P10-0153). This work discovered the mineralization which constitues the Bingo North and Bingo South gold showings. In 1992, the partnership completed geological mapping, prospecting, stripping, trenching, sampling, and ground VLF-EM, IP, and magnetic surveys on the Bingo North and Bingo South Showings (AF 73P10-0155). Drill holes WD-01 to -04 were completed on the Bingo North and South showings. In 1993, the partners completed a follow-up program of geological mapping, prospecting, and outcrop and soil sampling (AF 73P10-0158). This work resulted in the discovery of the Bingo East Showing. The showing was stripped, trenched (4), and channel sampled. In 1994, the partners completed detailed geological mapping, prospecting, and soil sampling around the Bingo showings, and stripping, trenching, and channel sampling at the Bingo South Showing (AF 73P10-0160). Drill hole WD-05 was completed on the Bingo North Showing, drill holes WD-06 and WD-07 were completed on the Bingo East Showing, and drill holes WD-08 to WD-12 were completed on the Bingo South Showing. In the following year, drill holes WD-15 to -20, a bore hole TDEM survey was completed on hole WD-20, and ground TDEM and HLEM surveys were completed on the Bingo Structure (AF 73P10-0163). This work proved that the Bingo North and Bingo South Zones are part of one continous mineralized zone. The Bingo Structure, which is over 500 m (1640.4 ft) long, is open to the south. Average gold grades in the shear are about 0.40 oz/ton Au over a true width of 1.72 m (5.6 ft) along a strike length of at least 200 m (656.2 ft). Between 1995 and 1996, a Uranerz-Cameco partnership completed prospecting and grab sampling around the Bingo South Showing and 38 drill holes (WD-21 to -60) on the Bingo Structure to further define mineralization along strike, down dip, and down plunge, as well as ground magnetic and IP surveys and 2 drill holes (WD-30, 31) on the Pond Au Showing or SMDI 2631 (AF 73P10-0166). This led to the announcement of a preliminary resource for the Bingo Structure. In 2002, Golden Band Resources Inc.completed 11 delineation and infill zone drill holes (WD-61 to WD-71) on the Bingo Deposit (AF 73P10-0170). This drill program demonstrated the continuity of the deposit along strike and down dip well outside the known limits of the deposit. The drilling indicated tha the Bingo Deposit is a steeply north-plunging high grade ore shoot within a larger mineralized structure. On 10 December 2002, Rod Spooner staked the deposit as S-104955 for Cameco as part of a reduction of CBS 3125. On 20 February 2003, Cameco transferred the claim to Golden Band Resources. Between 2002 and 2003, Golden Band re-sampled the core from drill hole WD1-71 and completed a resource estimate for the deposit (AF 73P10-0172). In the same year, they completed a bulk till sample survey over the deposit that remains confidential (AF 73P10-0174). In 2004, Golden Band conpleted environmental impact hydrogeological studies in support of an application to proceed with underground exploration. In 2004, Golden Band Resources received permission from Saskatchewan Environment to commence surface work in preparation for driving an exploration adit. The adit will be used to complete underground mapping and sampling to facilitate a better understanding of gold grade and distribution.
Production History
Production Period: 2014-01-01 to 2014-12-31 Golden Band Resources Inc. : 70,639.00 tonnes Total production from 2011 to 2014 was 323,491 tonnes grading 8.55 g/t for a total of 77,118 oz to the end of production. (2014 production numbers calculated from 2011-2014 numbers) Summary: - Gold: 8,978.00 oz @ 8.55 g/ton Production Period: 2011-01-01 to 2014-12-31 Golden Band Resources Inc. : Summary: - Gold Production Period: 2011-01-01 to 2013-12-31 Golden Band Resources Inc. : 252,852.00 tonnes Golden Band Resources Ltd. La Ronge gold project production from 2011 to 2013 of 252,852 tonnes grading 8.55 g/t Au for 68,140 oz. Includes production mainly from the Roy Lloyd Mine (Bingo deposit) with additional from EP and Komis deposits. Summary: - Gold: 68,140.00 oz @ 8.55 g/ton
Reserves and/or Resources
2024-12-01 Summary: Roy Lloyd: Measured and Indicated Mineral Resource of 155,383.00 tonne - Gold: 62,947.00 troy oz @ 12.6 g/tonne (Cutoff: 5) Roy Lloyd: Inferred Mineral Resource of 91,888.00 tonne - Gold: 31,843.00 troy oz @ 10.78 g/tonne (Cutoff: 5) 2023-12-01 Summary: Roy Lloyd: Inferred Mineral Resource of 91,888.00 tonne - Gold: 31,843.00 troy oz @ 10.78 g/tonne (Cutoff: 5) Roy Lloyd: Measured and Indicated Mineral Resource of 155,383.00 tonne - Gold: 62,947.00 troy oz @ 12.6 g/tonne (Cutoff: 5) 2015-11-03 Summary: Bingo: Indicated Mineral Resource of 268,184.00 tonne - Gold: 82,817.00 oz @ 9.6 g/tonne (Cutoff: 5) Bingo: Inferred Mineral Resource of 194,634.00 tonne - Gold: 71,773.00 oz @ 11.47 g/tonne (Cutoff: 5) 2013-03-19 NI 43-101 Measured & Indicated Resources for the Roy Lloyd Mine (Bingo deposit) of 155,383 tonnes grading 12.6 g/t Au. Inferred Resources of 91,888 tonnes grading 10.78 g/t Au. Summary: Roy Lloyd Mine (Bingo deposit): Inferred Mineral Resource of 91,888.00 tonne - Gold @ 10.78 g/tonne Roy Lloyd Mine (Bingo deposit): Measured and Indicated Mineral Resource of 155,383.00 tonne - Gold @ 12.6 g/tonne 2006-04-29 A resource, using a cut-off grade of 5 g/t Au of 50,284 tonnes grading 11.71 g/t Au containing 18,295 ounces Au. Inferred: 113931 tonnes grading 11.91 g/t Au containing 43,633 ounces Au. Geosim (Consultant) Summary: Historic inferred resource of 113,931.00 tonne - Gold: 43,633.00 oz @ 11.91 g/tonne Historic resource (unspecified) of 50,284.00 tonne - Gold: 18,295.00 oz @ 11.71 g/tonne (Cutoff: 5) 2005-01-01 Resource of 164,215 tonnes grading 0.3 oz/ton (11.6 g/t) Au. Summary: Historic resource (unspecified) of 164,215.00 tonne - Gold @ 11.6 g/tonne 2003-01-01 Indicated resource of 50,300 t averaging 11.71 g/t (18,925 contained ounces) and inferred resource of 114,000 t averaging 11.91 g/t Au (43,633 contained ounces Au). [Calculated using a cut-off of 5 g/t Au] Summary: Historic inferred resource of 114,000.00 tonne - Gold: 43,633.00 oz @ 11.91 g/tonne (Cutoff: 5) Historic indicated resource of 50,300.00 tonne - Gold: 18,925.00 oz @ 11.71 g/tonne 1996-01-01 Cameco – Uranerz Preliminary resource of the Bingo Structure: 64,230 oz Au. Assuming an average width of 2.8 m, a mineralized strike length of 250 m, and a grade of 12.76 g/t Au would give a tonnage of 156,500 t. Summary: Bingo Structure: Historic resource (unspecified) of 156,500.00 tonne - Gold: 64,230.00 oz @ 12.76 g/tonne
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