Ontario Geological Survey
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MDI42A08NW00026
| Record Name(s) | Gelinas Occurrence - 1980 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1992-Mar-04 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Hislop
Latitude: 48° 28' 3.49" Longitude: -80° 21' 41.4"
UTM Zone: 17 Easting: 547197 Northing: 5368475 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 42A08NW
Point Location Description: drill hole
Location Method: Data Compilation
Access Description: A point 1.70 km north and 4.40 km east of the southwest corner of Hislop Township. Access is provided via a north trending dirt road which intersects Highway 11 at the Hislop/Playfair Township common boundary, about 2.6 km northwest of the Highway 572 turnoff to Holtyre. Outcrop on the property occurs immediately west of a narrow gravel pit access road which joins the north trending dirt road about 1.6 km north of Highway 11.
Pre-1985: Gelinas Family – prospecting, pitting, sampling. 1985-89: overburden stripping; outcrop sampling; DD-2-343 ft
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.5465/OM87-6-I-356 | 42A08NW0034 | 42A08NW0034 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
Metamorphism Grade: Greenschist
Apr 15, 2016 (C Salo) - Bedrock on the property consists of sparsely exposed weakly metamorphosed (greenschist or lower metamorphic facies) steeply dipping, northeast striking, and southeast facing basalt and interflow sedimentary rock of the (Archean) Kinojevis Group. A single narrow north striking (Proterozoic) Matachewan diabase dike is exposed intermittently along the western outcrop exposures. A recent geophysical survey of Hislop Township failed to detect any significant bedrock conductors on the property. Airborne magnetic and electromagnetic surveys of Hislop Township indicate that anomalously high resistivity and (weakly) anomalously low in-line/in-phase apparent very low frequency electromagnetic values occur on the property. The latter of these anomalies may be caused by the north striking Matachewan diabase dike.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic pillowed flow | 1 | Fe-Tholeiitic Basalt | Pillowed | Near |
|---|---|---|---|---|
| Diabase | 2 | Matachewan Diabase Dike | Near | |
| Vein | 3 | Quartz And Quartz-Carbonate | Veinlets | Host |
| Chert | 4 | Interflow | Near |
Dec 07, 2005 (C Salo) - AB-85-209: Trench chip. 0.3 cm wide quartz-carbonate veinlet located at the southern basalt/chert contact exposed in the trench. AB-85-212: Trench chip, discovery gossan. Rusty and gossanous weathering fine grained grey chert cut by fine rusty weathering fractures. Less than 3% of fine grained weathered sulfides. 1 mm wide quartz-calcite-Fe-dolomite veinlets occur but are devoid of sulfide mineralization. Where the veinlets are Fe-dolomite bearing they have dolomitic margins and quartz-calcite cores. AB-85-214: Outcrop chip. Rusty weathering pervasively carbonatized (calcite) pyritic tuff(?) containing 1-3 mm size angular black clasts (formerly mafic phenocrysts?) supported by a fine grained, recrystallized grey matrix. 1-4 mm wide white quartz-calcite-Fe-dolomite-feldspar veinlets are present. The sample contains 1-3% of fine grained disseminated pyrite. Thin section viewing indicates that this sample is pervasively carbonatized and that veinlets contain turbid feldspars. AB-85-217: Trench chip. Incipiently amphibolitized dark grey, amygdaloidal non magnetic basalt. AB-85-218: Trench chip. Carbonatized (calcite) amygdaloidal basalt hosting a pyrite-quartz-sericitic domain. This sample probably represents a recrystallized cherty interflow domain. AB-85-221: Trench chip. Fine grained equigranular dark grey slightly magnetic amphibolitic basalt. AB-85-226: Trench chip. Medium grained, white quartz vein material containing less than 1% of very fine grained pyrite hosted by sheared mafic breccia or tuff. Note rusty weathering halo developed marginal to the vein. AB-85-227: Outcrop chip. Rusty weathering sheared basalt. Chip sample over 20 cm. AB-85-228: Outcrop chip. 1.5 cm wide milky white quartz-carbonate veinlet hosted by spongy, gossanous, and altered (buff colored) material. 3% of sulfides.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Carbonate | Economic | Gangue | ||||
| 3 | Quartz | Economic | Gangue | ||||
| 4 | Leucoxene | Economic | Gangue |
Apr 15, 2016 (A Wilson) - The only assays from the drill hole yielded values of between 3 and 6 ppb Au.
Dec 07, 2005 (C Salo) - In 1985, about 250 m north and slightly east of exposed outcrop hosting the quartz stringers, discovery of bedrock gossan beneath a thin cover of sand and till prompted a limited program of mechanical and pneumatic overburden stripping. The stripping is confined to a 25 m long trench which exposes a 2 m thick fine grained finely laminated grey interflow chert horizon which strikes 074 and which displays a locally developed internal shear fabric and a 65 degree north dipping contact with the sheared top of the underlying basalt flow to the north. Discontinuous narrow (less than 3 cm wide) and locally weakly pyritic quartz stringers striking subparallel to flow contacts in sheared basalt or basaltic breccia are also exposed in the trench. Of 21 bedrock samples from the trench which were assayed, the only sample (AB-85-210) returning greater than 30 ppb of gold was a chip sample of brecciated cherty sediment containing 3% of fracture controlled very fine grained pyrite; this sample assayed 1060 ppb of gold. On the basis of this anomalous gold assay, a single 167 foot (50.9 m) hole at azimuth 167, dip 45 degrees was diamond drilled to test the interflow horizon at depth. The interflow horizon exposed by the trench on surface was intersected by this hole at a vertical depth of about 37 m, where the horizon is represented by a narrow (about 0.8 m apparent thickness) unit of pyritic crystal tuff which returned a nil assay value for gold.
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
Map - Geological series, Quaternary geology of the Ramore area, districts of Cochrane and Timiskaming
Publication Number: P2381 Scale: 1:50,000 Date: 1980
Author: Baker C.L., Seaman A.A., Steele K.G.
Publisher Name: Ontario Geological Survey
Location:
Mono - Mineral occurrences, deposits, and mines of the Black River-Matheson area
Publication Number: OFR5735 Page: 1318-1325 Date: 1990
Author: Bath A.C.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Precambrian geology, Ramore area, northwestern part, District of Cochrane
Publication Number: P2860 Scale: 1:15,840 Date: 1985
Author: Jensen L.S.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Precambrian geology, Ramore area, districts of Cochrane and Timiskaming
Publication Number: P3131 Scale: 1:63,360 Date: 1989
Author: Jensen L.S.
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:
Map - Hislop Township, District of Cochrane, helicopter RADIOPHASE(TM) survey, in- line/in-phase contours
Publication Number: P0663 Scale: 1:15,840 Date: 1997
Author: Barringer Research Ltd.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Part - Geology of Hislop Township
Publication Number: ARV65-05 Date: 1997
Author: Prest V.K.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Hislop Township, District of Cochrane, helicopter E-PHASE(TM) survey, apparent resistivity contours
Publication Number: P0657 Scale: 1:15,840 Date: 1997
Author: Barringer Research Ltd.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Map - Geophysical/geochemical series, Matheson-Black River area, Hislop Township, airborne electromagnetic survey, total intensity magnetic survey, District of Cochrane
Publication Number: M80595 Scale: 1:20,000 Date: 1984
Author: Questor Surveys Ltd.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geological Synthesis of the Highway 101 Area, East of Matheson, Ontario
Publication Number: OFR6091 Date: 2003
Author: Berger B.R.
Publisher Name: Ontario Geological Survey
Location:
Map - Township of Hislop, District of Cochrane, Ontario
Publication Number: M1955-05 Scale: 1:12,000 Date: 1997
Author: Prest V.K., Cook D.R., Hogg N.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological Compilation of the Central Abitibi Greenstone Belt: Kapuskasing Structural Zone to the Quebec Border
Publication Number: P3565 Scale: 1:250,000 Date: 2005
Author: Ayer J.A., Berger B.R., Hall L.A.F., Houlé M.G., Johns G.W., Josey S.D., Madon Z.B., Rainsford D.R.B., Trowell N.F., Vaillancourt C.
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:
Map - Precambrian Geology of the Hislop Township Area
Publication Number: M2527 Scale: 1:20,000 Date: 2000
Author: Berger B.R.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological Compilation of the Lake Abitibi Area, Abitibi Greenstone Belt
Publication Number: P3398 Scale: 1:100,000 Date: 1999
Author: Ayer J.A., Berger B.R., Trowell N.F.
Publisher Name: Ontario Geological Survey
Location:
Article - Quaternary geology and geochemical exploration in the Matheson area
Publication Number: MP136.294 Date: 1997
Author: McClenaghan M.B., Lavin O.P., Nichol I., Shaw J.
Publisher Name: Ontario Geological Survey
Location:
Article - Geological investigations of the Destor-Porcupine deformation zone east of Matheson
Publication Number: MP146.023 Page: 136-143 Date: 1997
Author: Troop D.G.
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:
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