Ontario Geological Survey
Permanent Link to this Record:
MDI32D05NE00039
Record Name(s) | Miron - 1986, Gagne/St. Amant - 1987 |
---|---|
Related Record Type | Simple |
Related Record(s) | |
Record Status | Occurrence |
Date Created | 1991-Mar-09 |
Date Last Modified | 2023-Jan-09 |
Created By | |
Revised By |
Primary Commodities: Gold, Copper
Secondary Commodities: Silver
Township or Area: Tannahill
Latitude: 48° 25' 19.09" Longitude: -79° 43' 55.38"
UTM Zone: 17 Easting: 593808.615 Northing: 5363978.595 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 32D05NE
Point Location Description: Stripped area
Location Method: Based on Assessment
Access Description: Point Located: A point 3.14 km south and 1.97 km east of the northwest corner of Tannahill Township. 8 km north of the southern boundary of Elliott Township along the Harker-Holloway access road a 1.8 km northeast trending gravel road leads to a gravel pit. At the time of the property visit by the present writer (September, 1987), an old drilling road trending north from the gravel pit was followed to a recently cut narrow and mucky bush road. This was followed east to the Elliott-Tannahill Township common boundary, where it headed south, following the common boundary for about 1.6 km to the Magusi River. The occurrence is in Tannahill Township, on the east shore of the Magusi River, just north of a small set of rapids about 2 km at bearing 073 from where the Magusi River intersects the common township boundary (a 25 minute ride in a light motor boat from the river access point on the township line). In September, 1987, construction of a lumber road beginning at the gravel pit in Elliott Township and continuing east southeast into Tannahill Township was in progress. When completed, this road will allow 4 wheel drive vehicle access as far as the Elliott-Tannahill Township common boundary where the cut bush road (here trending 180) may be accessed about 600 m north of the Magusi River.
1986: T. Miron of Sudbury stripped overburden near what is now (1988) the common corner of mining claim nos. 982946, 982943, 982942, and 982845. A sketch map indicates that a sample from one pit assayed 0.29 ounce of gold per ton (assessment files, Resident Geologist's Office, Kirkland Lake). 1987: A contiguous block of 44 mining claims in west central Tannahill Township was staked by I. Gagne and A. St. Amant, both of Kirkland Lake. Work prior to September by the current owners consisted of hydraulic overburden stripping and bedrock blasting. 1988: The area was staked by Yvon Gagne. Airborne VLF-EM and airborne magnetic surveys were completed. This was followed by limited stripping and sampling. Nine X-Ray diamond drill holes totaling 1731 feet were completed. Samples collected and assayed returned gold to 583 ppb, and copper to 87,100 ppm. 1995: Strike Minerals completed stripping, trenching, blasting and sampling.
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
---|---|---|
KL-3795, W9680-00041 | 32D05NE0070 | 32D05NE0070 |
2.11278 | 32D05NE0036 | 32D05NE0036 |
14 | 32D05NE0045 | 32D05NE0045 |
2.11510 | 32D05NE0039 | 32D05NE0039 |
15 | 32D05NE0032 | 32D05NE0032 |
16 | 32D05NE9357 | 32D05NE9357 |
2.18094 | 32D05NE2002 | 32D05NE2002 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Tectonic Assemblage: Blake River
Geological Age: Archean
Metamorphism Grade: Greenschist
Dec 07, 2005 (C Salo) - The Gagne/St. Amant claims straddle the contact between weakly metamorphosed (greenschist or lower metamorphic facies) S facing (Archean) Kinojevis Group tholeiitic volc. rxs to the NW and overlying S facing (Archean) Blake River Group calc alkalic volc. rxs to the southeast. Bedrock in the area is on the north limb of the E striking and E plunging Blake River Synclinorium. Kinojevis Group rxs are repres. by Mg-rich tholeiitic basaltic and related intrus. rxs and sed. while Blake River Grp. rxs include calc alkalic basaltic to andesitic and related extrus. and pyroclastic rxs. The contact between the two Grps is nowhere exposed and its inferred position (striking about 060 across the N central part of the property) is poorly controlled lithogeochem. due to sparse outcrop exposure. S of the inferred position of the Kinojevis Blake River Grp contact, the volc. sequence has been synclinally folded. The trace of the synclinal axis strikes 080 and has been (apparently) sinestrally offset in two places by cross faults which strike 165. The western 165 striking cross fault appears to be of limited extent, with an (apparent) assoc. offset of about 50 m. The eastern cross fault, however, has been mapped to be of regional scale, and extends over 7 km. Offset across this fault may be greater than that across the western fault, but lack of exposure makes offset est.difficult . A gabbroic/anorthositic plug (estimated to be about 2,600 by 900 m in size) occurs about 900 m east of the occur.
Rock Type | Rank | Composition | Texture | Relationship | Mafic pillowed flow | 1 | Carbonatized Basalt/Andesite | Pillowed | Near |
---|---|---|---|---|
Vein | 2 | Quartz-Calcite | Host |
Dec 07, 2005 (C Salo) - AB-87-159: East stripping muck grab. Mottled grey/green carbonatized pillowed andesite or basalt. Rare white cp-calc veinlets cut pervasively calc altered volcanic rock containing calc andcalc-chlorite filled amygdules. Less than 2% of 1 mm size py cubes. AB-87-160: East stripping muck grab. Green/grey pervasively carbonatized amygdaloidal basalt or andesite. Amygdules range in size from 1-2 mm and may be calc filled. Rare py-calc filled amygdules are present. Less than 1% of py occurs within amygdules. AB-87-162: West stripping outcrop chip. Grey carbonatized amygdaloidal pillowed andesite or basalt with calc, calc-py, and cp filled amygdules, irregular blebs of cp, and a calc veinlet carrying fine to medium grained py and cp within the interpillow matrix. 5-7% of combined py and cp, usually occurring associated with calc veinlets. AB-87-163: Selected west stripping muck grab. Interpillow cp-calc vein carrying 25-30% of py, cp, and bornite. AB-87-165: Selected west stripping muck grab. Carbonatized fine grained dark green/grey interpillow matrix with cp-carbonate-py-cp. Combined sulfides constitute 10% of the sample. AB-87-166: Selected west stripping muck grab. Cp-calc mass with whispy blebs of cp, medium grained and often brecciated py, very fine grained acicular green tourmaline, and a fibrous coarse grained green amphibole (actinolite?). Hosted by fine grained dark green carbonatized hyaloclastite. 15% of combined sulfides.
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
---|---|---|---|---|---|---|---|
1 | Azurite | Economic | Ore | ||||
2 | Bornite | Economic | Ore | ||||
3 | Malachite | Economic | Ore | ||||
4 | Pyrite | Economic | Ore | ||||
1 | Quartz | Economic | Gangue | ||||
2 | Calcite | Economic | Gangue | ||||
3 | Tourmaline | Economic | Gangue | ||||
4 | Chlorite | Economic | Gangue | ||||
5 | Carbonate | Economic | Gangue | ||||
6 | Amphibole | Economic | Gangue | ||||
Carbonate | Alteration | Carbonatization | 1 |
Dec 07, 2005 (C Salo) - The eastern stripped area (about 3 by 4 m in size) exposes light green/grey c amoeboid to rarely bun shaped S facing pillowed mafic or intermed. volc. rxs. Pillows are gener. less than 1.5 m in max. exposed dimension and are amygdaloidal, with concentrically distributed 1 mm amygdules at the darker green-grey pillow margins which grade inward to 3 mm size randomly distrib. amygdules in the pillow cores. Amygdules filled with chl.-calc., q, q rimmed by calc., py rimmed by calc, py, and (rarely) cp were observed. The interpillow matrix is gener. dk green, chloritic, c, very fg, and locally hyaloclastic. The interpillow matrix contains 1-80% of dissem. fg py and whispy fg dissem. cp. Interpillow sulfide minerals tend to be cg and more abund. when assoc. with calc-q masses and veinlets which (rarely) cut indiv. pillows. The pillowed volc. rxs are intruded by a 10 cm wide, 075 striking mafic dike that contains 1-2 mm size varioles devel. along both margins. The western stripped and blasted area is a few metres west of the exposure descr. above and consists of a 0.5-3.0 m wide by 9 m long irreg. face blasted into c pillowed mafic or intermed. volc rxs ident. to those described above. Blasted muck samples contain interpillow py and cp with access. bn, mc, and az. Sulfide content of the interpillow matrix ranges from 1-90%, with what constitute essent. massive sulfide specimens rarely larger than a small hand sample. One interpillow grab sample of q-calcite-py-cp contained very fg acicular green tour and a green cg amphibole (actinolite?). At the Gagne/St. Amant occur., minimal overburden stripping has exposed base metal sulfide (up to 8.7% of Cu and 0.13% of Zn in selected grab samples) and precious metal (up to 37 ppm of Ag and 580 ppb of Au in selected grab samples) mineral. hosted by perv. c Blake River Grp volc rxs. The type and style of mineral. is identical to that known to occur assoc. with stockwork base metal/precious metal mineral. in Ben Nevis Twp.
Map - Geological series, Quaternary geology of the Magusi River area, Cochrane and Timiskaming districts
Publication Number: P2483 Scale: 1:50,000 Date: 1982
Author: Baker C.L., Steele K.G., Seaman A.A.
Publisher Name: Ontario Geological Survey
Location:
Folio - Tannahill Township, District of Cochrane
Publication Number: GDIF351 Date: 1997
Author: Kirkland Lake RGO
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Precambrian geology of the Magusi River area, Cochrane and Timiskaming districts
Publication Number: P2434 Scale: 1:63,360 Date: 1982
Author: Jensen L.S.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, preliminary results of bedrock samples from the sonic drilling, 1985, Lake Abitibi-Matheson area, District of Cochrane
Publication Number: P2986 Scale: 1:100,000 Date: 1986
Author: Jensen L.S., Steele K.G., McClenaghan M.B., Baker C.L.
Publisher Name: Ontario Geological Survey
Location:
Mono - Mineral occurrences, deposits, and mines of the Black River-Matheson area
Publication Number: OFR5735 Page: 1596-1603 Date: 1990
Author: Bath A.C.
Publisher Name: Ontario Geological Survey
Location:
Article - Abitibi alteration study
Publication Number: MP096.002S Page: 74-78 Date: 1997
Author: Grunsky E.C.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, bedrock samples from the sonic drilling program 1987, Matheson area, District of Cochrane
Publication Number: P3114 Scale: 1:100,000 Date: 1989
Author: Johnstone R.M., Sutcliffe R.H., Steele K.G., Baker C.L., McClenaghan M.B.
Publisher Name: Ontario Geological Survey
Location:
Article - An algorithm for the classification of subalkalic volcanic rocks using the Jensen cation plot
Publication Number: MP100.016 Page: 61-65 Date: 1998
Author: Grunsky E.C.
Publisher Name: Ontario Geological Survey
Location:
Map - Geophysical/geochemical series, Matheson-Black River area, Tannahill Township, airborne electromagnetic survey, total intensity magnetic survey, District of Cochrane
Publication Number: M80610 Scale: 1:20,000 Date: 1984
Author: Questor Surveys Ltd.
Publisher Name: Ontario Geological Survey
Location:
Article - Quaternary geology and geochemical exploration in the Matheson area
Publication Number: MP136.294 Page: 200-214 Date: 1997
Author: McClenaghan M.B., Lavin O.P., Nichol I., Shaw J.
Publisher Name: Ontario Geological Survey
Location:
Article - Quaternary geology and geochemical exploration in the Matheson area
Publication Number: MP140.294 Page: 112-123 Date: 1997
Author: McClenaghan M.B., Lavin O.P., Nichol I., Shaw J.
Publisher Name: Ontario Geological Survey
Location:
Article - Reconnaissance till sampling program, Matheson-Lake Abitibi area, District of Cochrane
Publication Number: MP141.081 Page: 472-477 Date: 1997
Author: Steele K.G.
Publisher Name: Ontario Geological Survey
Location:
Mono - Geochemical exploration of Early Precambrian volcanogenic sulphide mineralization in Ben Nevis Township, District of Cochrane
Publication Number: S019 Date: 1977
Author: Wolfe W.J.
Publisher Name: Ontario Geological Survey
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Kirkland Lake Resident Geologist District Office