Ontario Geological Survey
Permanent Link to this Record:
MDI000000001530
| Record Name(s) | Pick Lake Deposit - 1984, Anderson Showing - 1991, Andowan Mines Ltd - 1991 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1991-Apr-02 |
| Date Last Modified | 2022-May-10 |
| Created By | |
| Revised By |
Primary Commodities: Zinc, Copper, Silver
Secondary Commodities: Gold
Township or Area: Pays Plat Lake Area
Latitude: 48° 58' 18.02" Longitude: -87° 24' .76"
UTM Zone: 16 Easting: 470711 Northing: 5424384 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D14NW
Point Location Description: DDH
Location Method: Other
Access Description: The property is accessible by using an all-weather road known as the Whitesand/Winston Lake road, which extends north from Highway 17 between Rossport and Schreiber, Ontario. The Whitesand/Winston Lake road is located about 145 kilometers east of Thunder Bay, Ontario and is marked by the Winston Lake Mine sign.
1984: DDH (Falconbridge Copper) on the down dip extension of the Anderson occurrence- leading to the discovery of the Pick Lake Deposit; 1985: Additional DDH on the Upper Pick Lake Zone. 1990: drilling. 1991-1992: Minnova DDH; 1993: Metall Mining Corp. (formerly Minnova) began drifting 2200 m from the 615m level Winston Lake Mine to the Pick Lake Zone. Pick Lake deposit was mined briefly with INMET Corp. closing the mine in 1998, leaving 7 years of production in place. All UG workings are flooded. All mine buildings and infrastructure are removed. 2002: Orebot Inc. Ore petrology, geophysics, Quarternary geology and mapping, soil geochemistry, historical DDH collar and grid mapping. 2011: Optioned to Silvore Fox from Orebot Inc. Silvore Fox conducted a VTEM geophysical survey. 2012: Silvore Fox conducted geological mapping and sampling. 2013: Silvore Fox and Golden Share Mining Corp. merged. Golden Share conducted prospecting and sampling. 2015: property transferred back to Orebot. 2016: Ophiolite Consultants Pty Ltd. carried out mapping and rock and soil sampling. 2018: Superior Lake Resources entered into an option agreement with Ophiolite to acquire 70% of the property. Superior Lake drilled 1 DDH, with 2 wedges, totalling approximately 1750m. 2019: Superior Lake Resources carried out a FLTEM geophysics survey. 2021: Metallum Resources Inc. acquired the Superior Lake Zinc Project.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.50669 | 20000007062 | 20000007062 |
| 2.5394 | 42D14NE0079 | 42D14NE0079 |
| 2.6047 | 42E03SE0014 | 42E03SE0014 |
| 11 | 42D14NW0048 | 42D14NW0048 |
| 22 | 42D14NW0018 | 42D14NW0018 |
| 10 | 42D14NW0043 | 42D14NW0043 |
| 2.3903 | 42D14NW0037 | 42D14NW0037 |
| 2.3902 | 42D14NW0036 | 42D14NW0036 |
| 2.45096 | 20000006157 | 20000006157 |
| 2.53573 | 20000007517 | 20000007517 |
| 2.54796 | 20000008045 | 20000008045 |
| 2.53291 | 20000007489 | 20000007489 |
| 2.57704 | 20000013841 | 20000013841 |
| 2846, 49292 | 20000019137 | 20000019137 |
| 3765, 63507 | 20000019024 | 20000019024 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Archean
Nov 20, 2012 (B Nelson) - The occurrence is classed as a VMS deposit. The claim group is underlain by granite, diorite, and felsic metavolcanic gneisses. The granite is fine grained and locally migmatitic. In the western part o the claim group and west of the diorite, the schistosity and gneissosity of the felsic metavolcanic trend approximately north south and dip 60 degrees to the South. This disruption is probably a result of the granitic intrusion that outcrops on the southern part of the property. The diorite is separated from the felsic metavolcanic gneisses on both the east and west sides by north northeast trending faults. When visited by the Res. Geologist, the Anderson occurrence (up plundge from the Pick Lake deposit) consisted of a 150m by 50m stripped area, and evidence of three olds. The mineralized and gossan zones and foliation striked 340 degrees 75 degrees N. The Pick Lake deposit plunges steeply at approximately 65 degrees. The host rocks consist of biotite garnet anthophyllite schists as well as a clotted felsic volcanic. Up to 1% Cu and Zn had been reported from surface grab samples. Samples collected by the author contained considerable magnetite, pyrrhotite and pyrite and the rock may represent a metamorphosed iron formation.
| Rock Type | Rank | Composition | Texture | Relationship | Granite | 1 | Granite | Near |
|---|---|---|---|---|
| Diorite | 2 | Diorite | Host | |
| Felsic lava flow-unsubdivided | 3 | Gneisses | Near | |
| Felsic lava flow-unsubdivided | 4 | Host | ||
| Schist-Unsubdivided | 5 | Biotite-Garnet | Host |
Nov 21, 2012 (B Nelson) - The felsic metavolcanics consist of fine-to-medium grained quartz feldspar biotite gneiss (Unit 2a), quartz muscovite schist (Unit 2b) and quartz biotite garnet gneiss (Unit 2c). In Unit 2c, remnant lailli fragments were observed which suggest that these gneisses are felsic metavolcanics rather than metasediments (Pye, 1964). The diorite intrusive (unit 4a,b) is fine grained, massive and magnetic. The granite is fine grained and locally migmatitic. A table of formations is presented below. All rocks are Archean in age. Table of Formations: Granite Intrusive Contact Diorite Gabbro Amphibolite Intrusive Contact Felsic Metavolcanic
Aug 21, 2015 (Therese Pettigrew) - The Winston Lake Zn-Cu-Ag massive sulfide deposit is situated above a sequence of metamorphosed Archean calc-alkaline volcanic and volcaniclastic rocks. The footwall rocks are dominated by interlayered successions of metamorphosed volcaniclastic and volcanic rocks that have been extensively intruded and block faulted. Volcaniclastic-sediments were deposited at the base of the stratigraphy where they were interlayered with felsic pyroclastic deposits and/or their turbiditic equivalents. Locally massive sulfide and cherty exhalative beds were deposited. A relatively thick section of interlayered felsic and mafic lava flows were erupted and deposited above the basal volcaniclastic rocks; minor interfiow clastic and base metal-poor exhalative sediments accumulated during pauses in mafic volcanism. An upper clastic succession accumulated above the lava flows; basinal volcaniclasticsediments were deposited and were overlain in part by felsic pyroclastic material that was erupted from a distant, extraneous source. Interlayered mafic lava flows and volcaniclastic rocks cap the footwall stratigraphy and host the Winston Lake deposit and stratigraphically equivalent mineralized occurrences. Facies analysis of lava flows, along with the basinal distribution of volcaniclasticsediments indicates the Winston Lake footwall stratigraphy developed in a subsiding, subaqueous rift environment. Subsidence was focussed in the rift axis; associated stresses resulted in development of synvolcanic faults within and distal to the rift axis. The dominance of passive eruption products indicates volcanism occurred in relatively deep water beneath the volatile fragmentation depth (Osterberg, 1992).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Magnetite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 4 | Sphalerite | Economic | Ore | ||||
| Epidote | Alteration | Epidotization | 1 | Unknown | Replacement | ||
| Chlorite | Alteration | Chloritic | 2 | Unknown | Replacement | ||
| Sericite | Alteration | Sericitization | 3 | Unknown | Replacement |
Nov 21, 2012 (B Nelson) - The mineralogy of the Anderson occurrence has been noted by Pirie (1981a): Three to five percent disseminated sulphides (po, cp, sp and py) were found in a quartz biotite garnet schist interlayered wit quartz feldspar biotite gneiss. The zone of mineralization was approximately 10m thick and could be traced along strike for about 75m. Epidote, chlorite and sericite occur in the gniesses below the showing. Drilling by Corporation Falconbridge Copper on the down dip extension of the Anderson occurrence (known as the Pick Lake Zone) intersected a thin, high grade sheet of massive sulphide mineralization. Drilling has tested the zone down to 1000 m vertical depth. Pirie (1981b) listed the results of a lithogeochemical survey conducted by Falconbridge. 1. A northeast trending moderate to strong copper and zinc anomaly is found on the northern edge of the claim TB 519245. This zone is located along strike from the Anderson Showing and could be related to the undiscovered mineral occurrences. 2. Southesest of the Anderson Showing, but still within the felsic metavolcanics is another northeasterly trending copper enrichment zone. Zinc is weakly anomalous in the northeastern part of this zone, but becomes moderately anomalous near the felsic volcanic granite contact. A southeasterly trending sodium depletion zone cuts this zone and extends into the felsic metavolcanics which outcrop in claim TB 519247. 3. The diorite is weakly anomalous in Copper. The lithogeochemical survey was successful in outlining area of anomalous metal content. A zone northeast of the Anderson Showing and a northeasterly trending zone to the southeast both appear to be stratigraphically controlled. Further investigation is warranted in these areas.
Aug 21, 2015 (Shannon Zurevinski) - Hole 67 intersected 13.4 m grading 25% Zn, 2.6% Cu, 106.1 g Ag per tonne and 0.4 g Au per tonne at a depth of 1050m (The Northern Miner August 27, 1990).
May 17, 2019 (Therese Pettigrew) - The Pick Lake deposit occurs 1000 m stratigraphically below the Winston Lake deposit. The deposit was described as an extensive, narrow sheet of zinc-rich massive sulphides. The best intersect in the mid-1980s was 1.49% Cu and 21.95% Zn over 1.5 m. Results from the 1990 drill program include the following: WL67C - 3.6 m @ 34.4% Zn, 1.2% Cu, 56.9 g/T Ag; WL32A - 3.5 m @ 17.8% Zn, 0.71% Cu, 59.5 g/T Ag; WL67- 13.4 m @ 25.1% Zn, 2.6% Cu, 106.4 g/T Ag. The deposit is described as several thin (1.5-14 m thck), but continuous massive sulphide sheets with a down-plunge length of 1000 m. The Upper and Lower zones average 2 and 4 m in thickness, respectfully. Massive Sulphide ore, in sharp contact with host rocks, has a strike length which varies from 100 to 400 m. It forms a dyke-like body which locally crosscuts both foliation and granitic dykes. The Pick Deposit is a large high grade remobilized Zn-Cu-Ag-Au orebody that was relocated to its present position from a similarly high grade primary VMS deposit that has not yet been found (AFRI 20000006157). Drilling in 2018 led to the discovery of the Mid Pick zone, with assay results of 20.12% Zn and 0.8% Cy over 1.56 m, and a footwall zone with results of 25.2% Zn and 0.18% Cu over 0.35 m (Superior Lake Resources Dec 18, 2018 press release).
| Rank | Classification |
|---|---|
| 1 | VMS Base Metal |
| Rank | Characteristic |
|---|---|
| 2 | Layered |
| 1 | Stratiform |
Date: Feb 11, 1997
Geologist: B Nelson
Notes: Also October 27, 1990
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Pick Lake | 2021 | Inferred Mineral Resource | 270000 | Metallum 2021 NI 43-101 | Copper 1.0 %, Gold 0.3 g/t, Silver 38 g/t, Zinc 16.4 % | |
| Pick Lake | 2021 | Indicated Mineral Resource | 1780000 | Metallum 2021 NI 43-101 | Copper 0.9 %, Gold 0.3 g/t, Silver 36.1 g/t, Zinc 19.2 % | |
| Superior Lake Ore | 2021 | Probable Mineral Reserve | 1960000 | Metallum 2021 NI 43-101 | Copper 0.6 %, Gold 0.2 g/t, Silver 26.2 g/t, Zinc 13.9 % | |
| Pick Lake | 2019 | Indicated Mineral Resource | 2070000 | Superior Lake webpage https://www.investi.com.au/api/announcements/sup/b6dee590-ae3.pdf June 11, 2019 | JORC report | Copper 0.9 %, Gold 0.38 g/t, Silver 34 g/t, Zinc 18 % |
| Pick Lake | 2019 | Inferred Mineral Resource | 280000 | Superior Lake webpage https://www.investi.com.au/api/announcements/sup/b6dee590-ae3.pdf June 11, 2019 press release | JORC report | Copper 1.0 %, Gold 0.31 g/t, Silver 37 g/t, Zinc 16.2 % |
| Pick Lake Upper and Middle Zone | 1997 | Unclassified | 260000 | AFRO # 2.45096 | Inmet completed a detailed UG drilling campaign on the Pick Lake Deposit prior to mine closure, and recalculated reserves at Pick Lake. These were not released to the public prior to the mine closure.Included: 11.21 % Zn; 0.77 % Cu; 31.5 g/t Ag and 0.65 g/t Au. | Copper 0.86 Percent, Gold 0.46 Grams per Tonne, Silver 38 Grams per Tonne, Zinc 15.9 Percent |
| Pick Lake Lower Zone | 1997 | Unclassified | 1200000 | OFR 5951; AFRO # 2.45096 | Inmet completed a detailed underground drilling campaign on the Pick Lake Deposit prior to mine closure, and recalculated reserves at Pick Lake. These were not released to the public prior to mine closure. Includes: 15.9% Zn; 0.86% Cu; 38 g/t Ag; 0.46 g/t Au | Copper 0.77 Percent, Gold 0.65 Grams per Tonne, Silver 31.5 Grams per Tonne, Zinc 11.21 Percent |
| Pick Lake Upper Zone | 1995 | Proven | 39000 | INMET Mining communication, RGP files | Copper 1.11 %, Gold 0.67 g/t, Silver 37.17 g/t, Zinc 19.06 % | |
| Pick Lake Upper Zone | 1995 | Probable | 65000 | INMET Mining communication, RGP files | Copper 1.24 %, Gold 0.59 g/t, Silver 41.4 g/t, Zinc 18.57 % | |
| Pick Lake Lower Zone | 1995 | Proven + Probable Reserve | 648400 | INMET Mining communication, RGP files | Copper 1.07 %, Gold 0.59 g/t, Silver 47.66 g/t, Zinc 20.13 % |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1995 | 13321 | INMET communication, RGP files |
MonoMap - Mineral deposits of the Big Duck Lake area, District of Thunder Bay
Publication Number: R027 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Superior Zinc and Copper Project, NI 43-101 Technical Report - Feasibility Study
Publication Number: 2021 NI 43-101 Date: 2021
Author: Gagnon, D., Abzalov, M., Gravel, A-F, Frost, D., Parent, J., Dougherty, C., Madarajah, G., deGagne, R.C., Kalenchuck, K.
Publisher Name: DRA Global for Metallum Resources
Location: SEDAR
Map - Big Duck Lake area, District of Thunder Bay
Publication Number: M2023 Scale: 1:15,840 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Book - Field Trip Guidebook, Volume 41, Pt 2c, 41st Institute on Lake Superior Geology, MA.
Publication Number: Field Trip Guid Date: 1995
Author: Smyk, M.C and Schnieders, B.R.
Publisher Name:
Location: ILSG Website; Thunder Bay RGP
Thesis - Stratigraphy, physical volcanology and hydrothermal alteration of footwall rocks to the Winston Lake massive sulphide deposit, NW Ontario, Canada.
Publication Number: Date: 1992
Author: Osterberg, S. A.
Publisher Name: University of Minnesota, USA
Location: Univeristy of Minnesota, USA
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