Ontario Geological Survey
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MDI52F15SE00008
| Record Name(s) | Zealand Township - 1939 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1987-Apr-16 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Soapstone
Township or Area: Zealand
Latitude: 49° 45' 10.08" Longitude: -92° 36' 9.56"
UTM Zone: 15 Easting: 528622.22 Northing: 5511222.08 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F15SE
Point Location Description: General
Location Method: Conversion from MDI
1939: Showing was first described by F. Pettijohn. 1941: Showing was described by J. Satterly of the OGS. 1998: Teck Exploration Ltd. carried out an extensive drill program, including 1 DDH totalling 406 m that intersected this zone.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.20559 | 52F15SE2012 | 52F15SE2012 |
Province: Superior
Subprovince: Wabigoon
Geological Age: Archean
Dec 07, 2005 (R Degagne) - The area was mapped by Satterly (1943). The soapstone occurrences were described by Pettijohn (1939) and Satterly (1943) as small altered mafic to ultramafic intrusions and sills within metavolcanics . Satterly notes that the sills (quote) stand out in contrast to the surrounding dark-green to black colour of the volcanics. A thin section of a specimen from lot 17, concession VIII, Zealand Township, shows an aggregate of fractured and altered olivine, amphibole, chlorite, and accessory iron ores and rare feldspar grains. The rock is an altered peridotite. These sills range from 30 to 100 feet in thickness. Tourmalinization of the adjacent volcanics on the margin of the sill has resulted in the formation in several localities of a tourmaline amphibolite. Associated with this rock in places are quartz-tourmaline veins. It would, therefore, seem highly probable that the development of the soapstone in these sills is due to hydrothermal action accompanying the injection of these quartz veins (unquote).
Jun 16, 2020 (Therese Pettigrew) - All the bedrock in the area is Precambrian in age. The oldest group is made up of a thick sequence of steeply inclined intercalated volcanic flows and sediments. These Keewatin volcanics consist of a variety of intrusive rocks ranging from basic to ultrabasic in composition. The intrusives occur as narrow sills, small to large bosses and some of them contain inclusions of the volcanics and in one place truncate the sediments. Another group of intrusives called the Algoman form batholiths, stocks and sills; these intrude the preceding groups and consist of a variety of granitic masses ranging from diorite to granite. A Keweenawan diabase dike cuts all the rocks in the area (Smith et al., 1982).
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Near |
|---|---|---|---|---|
| Peridotite | 2 | Peridotite;Ol,Amp,Chl,Qtz-Tur | Host | |
| Ultramafic Schist | 3 | Soapstone | Contains |
Dec 07, 2005 (R Degagne) - The area was mapped by Satterly (1943). The soapstone occurrences were described by Pettijohn (1939) and Satterly (1943) as small altered mafic to ultramafic intrusions and sills within metavolcanics . Satterly notes that the sills (quote) stand out in contrast to the surrounding dark-green to black colour of the volcanics. A thin section of a specimen from lot 17, concession VIII, Zealand Township, shows an aggregate of fractured and altered olivine, amphibole, chlorite, and accessory iron ores and rare feldspar grains. The rock is an altered peridotite. These sills range from 30 to 100 feet in thickness. Tourmalinization of the adjacent volcanics on the margin of the sill has resulted in the formation in several localities of a tourmaline amphibolite. Associated with this rock in places are quartz-tourmaline veins. It would, therefore, seem highly probable that the development of the soapstone in these sills is due to hydrothermal action accompanying the injection of these quartz veins (unquote).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Talc | Economic | Ore | ||||
| 1 | Olivine | Economic | Gangue | ||||
| 2 | Amphibole | Economic | Gangue | ||||
| 3 | Chlorite | Economic | Gangue | ||||
| 4 | Feldspar | Economic | Gangue | ||||
| 5 | Quartz | Economic | Gangue | ||||
| 6 | Tourmaline | Economic | Gangue | ||||
| Talc | Alteration | Steatization | 1 | Unknown | Disseminated | ||
| Chlorite | Alteration | Steatization | 2 | Unknown | Disseminated | ||
| Tourmaline | Alteration | Tourmalinization | 3 | Unknown | Veins |
Dec 07, 2005 (R Degagne) - The area was mapped by Satterly (1943). The soapstone occurrences were described by Pettijohn (1939) and Satterly (1943) as small altered mafic to ultramafic intrusions and sills within metavolcanics . Satterly notes that the sills (quote) stand out in contrast to the surrounding dark-green to black colour of the volcanics. A thin section of a specimen from lot 17, concession VIII, Zealand Township, shows an aggregate of fractured and altered olivine, amphibole, chlorite, and accessory iron ores and rare feldspar grains. The rock is an altered peridotite. These sills range from 30 to 100 feet in thickness. Tourmalinization of the adjacent volcanics on the margin of the sill has resulted in the formation in several localities of a tourmaline amphibolite. Associated with this rock in places are quartz-tourmaline veins. It would, therefore, seem highly probable that the development of the soapstone in these sills is due to hydrothermal action accompanying the injection of these quartz veins (unquote).
Jun 16, 2020 (Therese Pettigrew) - DDH TL-164 reported a 20 cm interval of chlorite + talcose +/- serpentine + pyrite at 334.4 m depth, with 2 cm of semi-massive pyrrhotite > sphalerite > chalcopyrite at the base of the interval (Assessment report 52F15SE2012).
| Rank | Classification |
|---|---|
| 1 | Hydrothermal |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown |
Date: Mar 04, 1997
Geologist: R Degagne
Notes: N/A
Journal - Couchiching of Thunder Bay, Ontario, GSA Bulletin, vol. 50, p. 761-776
Publication Number: VOL 50 Scale: Date: 1939
Author: Pettijohn, F.J.
Publisher Name: Geological Society of America
Location:
Mono - Talc in Ontario
Publication Number: IMR040 Scale: Date: 1998
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Part - Geology of the Dryden-Wabigoon area
Publication Number: ARV50-02 Scale: Date: 1997
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Industrial minerals of northern Ontario-supplement 1
Publication Number: OFR5388 Scale: Date: 1982
Author: Vos M.A., Abolins T., Smith V.
Publisher Name: Ontario Geological Survey
Location:
Mono - Soapstone in Ontario
Publication Number: OFR5764 Scale: Date: 1991
Author: Gerow M.C., Sherlock E.J., Bellinger J.A.
Publisher Name: Ontario Geological Survey
Location:
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