Ontario Geological Survey
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MDI52F08NW00045
| Record Name(s) | Wapageisi Lake - 1969 |
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| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1999-Dec-21 |
| Date Last Modified | 2022-Aug-04 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Zinc
Township or Area: Wapageisi Lake Area, Islets Lake Area
Latitude: 49° 15' .15" Longitude: -92° 17' .54"
UTM Zone: 15 Easting: 552144.842 Northing: 5455499.302 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F08NW
Point Location Description: Diamond drill holes
Location Method: Other Literature
Access Description: The showing is located some 29 to 32 kilometres south of Dyment, a station on the trans-continental line of the Canadian Pacific Railway.
1970: airborne EM and Mag survey. Geological and geophysical surveys. 193 m of DD in 9 holes.
Province: Superior
Subprovince: Wabigoon
Terrane: Western Wabigoon
Belt: Eagle-Wabigoon-Manitou
Geological Age: Precambrian
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Amphibolite - Pillow Lavas | Contains |
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Oct 02, 2009 (D Scholtz) - Largely barren pyrite and pyrrhotite often with associated graphite occur erratically in long continuous shear zones in the volcanic rocks along the northern edge of the anomalous belt. Detailed mapping and ground geophysics gives a linear pattern to these northern anomalies which is not evident from the plotting of airborne results and it is apparent that on some flight lines orientation was a problem. These mineralized zones seldom contain more than 10 to 15% of sulphides concentrated over widths generally less than 4.5 metres and have a low base metal content. The numerous mineralized zones along the southern and central portion of the belt may be more attractive for detailed examination than those in the north. Sulphides occur in shears and brecciated wall rocks in strong zones up to 304.8 or 457.2 metres in length and, in several cases, are associated with siliceous metasediments. Chalcopyrite with traces of zinc usually accompanies pyrrhotite and pyrite, and forms a much larger percentage of the total sulphide than is usual. It is interesting to note that the most interesting trenches to date have been across conductors near the broad postulated fold in the centre of the property. (Kenora Resident Geologist Office, Assessment File 52F/09SW-C-2, Derry, Michener and Booth, 1970, p. 4-7)
Aug 04, 2022 (Q Unknown) - 1970: Best drill intersection assayed: 0.29% Cu and 0.72% Zn over 0.5 m. mineralization included pyrite, pyrrhotite and minor chalcopyrite. Grab samples from trenches returned less than 0.5% Cu. Lithologies included intermediate metavolcanic, metasedimentary and amphibolite rocks. The claims are largely underlain by intermediate to basic volcanic and metavolcanic rocks striking an average of about N7S°W and either vertical or steeply dipping to the north. These formations constitute the lower section of the south limb of the major Manitou-Stormy Lakes syncline. Generalized areas of outcrop over the mapped grid s are shown on Map #1 on a scale of 1/ 4 mile to the inch. Exposures of pillow lava, numerous on the north half of the property but sparsely distributed over the remainder of the area, consistently indicate that the f lows are facing north. Where these rocks are coarse- grained, nodular and massive with no indications of flow structures they have been mapped as amhpibolite. In some instances, the amphibolite can be shown to grade into clearly indicated pillow lavas. In other instances there are indications that the amphibolite is of an intrusive, probably sill-like, nature. The only distinct variation from these rather monotonous andesite/amphibolite series are occasional interflow beds of more siliceous material up to 0.3 or 0.6 metres in width which have been identified microscopically as quartzites. Narrow discontinuous acid porphyry dykes cut all other formations. An imposed regional schistosity with a general east/west direction mainly parallel to the true strike of the volcanic beds is indicated by the attitude of the pillow lavas which are abundant along the north boundary of the property. Jointing is common throughout the area and oriented either east-west along the strike or perpendicular to the flows. An embayment of granite south of the south central part of the claim group appears to have caused a slight warp or fold in the intruded volcanics; the axis of this fold strikes N-NE and extends across the claim group although becoming much less accentuated and ultimately disappearing towards the north. It is interesting to note that the wider mineralized shear zones have been found in the vicinity o f this postulated fold. While there are probably numerous strike faults as indicated by the (often-mineralized) shear zones, none of these seem to have resulted from a major displacement or at least this has not been detected because of the similarity of the rock types. Cross - faulting is largely limited to minor displacements probably along joint planes, although two cross-faults with inferred horizontal displacements of greater than 150 metres occur at the west end of the property. (Kenora Resident Geologist Office, Assessment File 52F/09SW-C-2, Derry, Michener and Booth, 1970, p. 4-7)
Book - Summary Report on the Dryden Project for the 1970 Field Season, Derry, Michener and Booth, 1970
Publication Number: AF-52F/08SW-C-2 Date: 1970
Author: J.B. Gordon
Publisher Name: Derry, Michener and Booth, 1970
Location: Kenora Resident Geologist Office.
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