Ontario Geological Survey
Permanent Link to this Record:
MDI41O15SE00002
| Record Name(s) | Aguara Exploration Occurrence - 1932, Rickaby - 1986 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1993-Jul-08 |
| Date Last Modified | 2023-Aug-03 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Silver
Township or Area: Rollo
Latitude: 47° 52' 19.34" Longitude: -82° 42' 16.84"
UTM Zone: 17 Easting: 372526.38 Northing: 5303484.65 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41O15SE
Point Location Description: Stripped area centred on a set of old pits and trenches.
Location Method: Field Visit with GPS
Access Description: Secondary logging roads and drill trails connect the showing to the Pineland Timber - Dore Main Haul logging road.
1932 W.H. Graves staked the property for Agaura Exploration to cover two zones of gold mineralization. The southern zone was trenched and visible gold was noted in a quartz vein stockwork. The best result obtained was 24g/t Au (0.7oz/ton). Channel samples across the northern zone returned low values. 1980 Carlson Mines cleaned out the old trenches and resampled the veins. The best result obtained from this program was 16 g/t gold (0.47 oz/ton) but most assays were less than a gram. 1983 A combined geophysical surveying, geological mapping and overburden stripping program was carried out by Carlson Mines over a two year period. The geophysical surveying consisted of magnetometer and induced polarization work. The best assay result from this program was 8.6 g/t Au (0.25 oz/ton) but most results were less than 2 g/t Au but with some associated silver. 1985 Carlson Mines remapped the property, mapped and channel sampled the stripped areas in detail. Assay results from this phase of sampling did not duplicate results from the earlier phases of exploration. 1986 Carlson Mines commissioned an airborne magnetometer and VLF electromagnetic survey which covered the area of the known mineralization. 1989 Black Gregor Exploration entered into a joint venture program with Carlson Mines and drilled 2,470m in 13 holes on the Agaura occurrence. A number of assay results from this drill program are in the range of 3 to 6 g/t gold. 1991 Additional stripping was carried out on the showing by Black Gregor Exploration. 2014: Richmond Minerals Inc. - prospecting, sampling, assays.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-1987 / 2.5864 | 41O15SE0024 | 41O15SE0024 |
| T-2639 / 2.13173 | 41O15SE0001 | 41O15SE0001 |
| T-2639 / 2.9419 | 41O15SE0015 | 41O15SE0015 |
| T-2639 / 63.5505 | 41O15SE0011 | 41O15SE0011 |
| T-6743 / 2.55371 | 20000008347 | 20000008347 |
| T-1987 / 63.4364 | 41O15SE0020 | 41O15SE0020 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Geological Age: Neoarchean Geochronological Age: 2700 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (S Fumerton) - The state of deformation in the outcrop is high and has affected the various geological units differently. The pillow flows are highly elongated with a length to thickness ratio of 10:1. In contrast the felsic tuffs are characterized by strong foliation - schistosity and common small, crenulation folds. In contrast, within the massive flows there is a network of narrow shear zones separated by relatively undeformed rock. Some of these altered shear zones and quartz veins within the massive flow are tightly folded. At the fold hinge the quartz veins form thickened knots while the limbs are locally attenuated. The presence of folded shear zones and unfolded shear zones indicate two periods of deformation.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz Vein | Host |
|---|---|---|---|---|
| Granitoid-Unsubdivided | 2 | Dyke | ||
| Porphyry-unsubdivided | 3 | Quartz-Feldspar | Near | |
| Felsic Lapilli-Tuff | 4 | Lapilli Tuff | Near | |
| Mafic Tuff | 5 | Basalt | Tuff, Pillowed | Near |
| Vein | 7 | Quartz | Host | |
| Terrigenous-Clastic-Unsubdivided | 7 | Arkose | Adjacent |
Dec 07, 2005 (S Fumerton) - The mineralization is hosted in a massive, coarse grained mafic flow within a sequence of mafic massive flows, pillowed flows, and tuffs. The pillowed flows which are strongly deformed, occur intercalated with mafic and some felsic tuffs in the northern part of the stripped outcrops. The mafic tuffs vary between finely laminated to rare, coarse fragmental rocks. To the south of the massive mafic flows is a sequence of felsic pyroclastic rocks with some thin (<2cm) interbedded though dislocated chert and arenite horizons. This package of felsic rocks is highly sheared, crenulated and contains some elongated felsic fragments plus sulphide rust spots. Attenuated veins of epidote / saussuritization are common in the massive flow which is also transected by chlorite - carbonate altered shear zones together with quartz veins. Intruding these mafic metavolcanics just south of the mineralization zone is a thin (<4m) quartz, feldspar porphyry sill. Within this sill the feldspar megacrysts are euhedral where as the quartz megacrysts are anhedral and the sill is cut by a stockwork of small quartz veins. Pervasive alteration within the porphyry consists of hematite, carbonate, and saussuritization. Alteration along the porphyry contacts consists of silicification and hematite. Pyrite forms up to 3% of the porphyry and the concentration tends to increase towards the contact. Adjacent to the feldspar porphyry there is a narrow zone of strong iron carbonate alteration. In addition to the porphyry there are also a number of small mafic dykes that are discordant to the general fabric of the rocks.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| Epidote | Alteration | Saussuritization | 1 | Weak | Veins | ||
| Chlorite | Alteration | Chloritic | 2 | Medium | Replacement | ||
| Hematite | Alteration | Hematization | 3 | Weak | Disseminated |
Dec 07, 2005 (S Fumerton) - Discontinuous quartz veining can be traced for about 30m within a series of altered shear zones that ranges in width from 1 to 5m wide. The veins within the shear zone are composed of very coarse grained white quartz that are discontinuous, folded and typically less than 1m thick. Locally around the larger quartz veins a stockwork of small quartz veinlets. Pyrite occurs in variable concentrations within the quartz veins from sparse erratic grains to <5% euhedral grains. The pyrite concentrations also vary in a similar manner within the altered shear zones. Gold is probably erratically distributed in the quartz veins. This is because it has proved difficult to reproduce assays results collected from the various trenches occurs in different exploration programs.
Jan 28, 2015 (A Wilson) - A channel sample from the south zone assayed 0.7 oz/t Au across 8 inches. Chip samples taken in 1980 had assay values aranging from 0.001 oz/t Au across 1 foot to 0.478 oz/t Au across 1.5 foot. Grab samples collected by Newmont Mines in 1982 returned assays of 0.252 oz/t Au over a 10 ft quartz vein (trench 1). Assays from grab samples collected from dump sites near the trenches returned values of 0.242 oz/t Au, 0.022 oz/t Au and 0.031 oz/t Au.
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 152 | 1 | 260 | 90 | 28 | 254 | N/A | T-6357 |
File - Resident Geologist files T-2639 (W8606-00128), T-6357
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Swayze gold area, District of Sudbury, Ontario
Publication Number: ARM43B Scale: 1:63,360 Date: 1997
Author: Rickaby H.C.
Publisher Name: Ontario Dept. of Mines
Location:
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 108 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
Book - Northern Miner Jan 26, 1984
Publication Number: N/A Date: 1984
Author: Northern Miner
Publisher Name:
Location: Timmins RGO
Part - Geology of the Swayze gold area
Publication Number: ARV43-03.001 Page: 35 Date: 1998
Author: Rickaby H.C.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Chapleau area, districts of Algoma, Sudbury, and Cochrane
Publication Number: R157 Page: 184 Date: 1977
Author: Thurston P.C., Siragusa G.M., Sage R.P.
Publisher Name: Ontario Division of Mines
Location:
Mono - Gold deposits of Ontario, part 2, part of District of Cochrane, districts of Muskoka, Nipissing, Parry Sound, Sudbury, Timiskaming, and counties of southern Ontario
Publication Number: MDC018 Page: 116 Date: 1979
Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Mineral Prospects of the Swayze Greenstone Belt (Volume 1, Parts of NTS 41 O and Volume 2, Parts of NTS 41 P, 42 A and 42 B)
Publication Number: OFR5912 Page: 188-190 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
Article - Timmins Resident Geologist's District - 1989
Publication Number: MP147.012 Page: 246 Date: 1997
Author: Luhta L.E., Sangster P.J., Ireland J.C., Hamblin C.D., Bradshaw M.P.
Publisher Name: Ontario Geological Survey
Location:
Map - Geology, Swayze greenstone belt, Rollo Lake, Ontario
Publication Number: OF 3384b Scale: 1:50,000 Date: 1999
Author: Heather, K B; Shore, G T
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/210450
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