Ontario Geological Survey
Permanent Link to this Record:
MDI42D15SW00034
| Record Name(s) | Kingdom Occurrence - 1984, Tb427000 - 1951, Santoy Bay - 1951 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Mar-29 |
| Date Last Modified | 2022-May-17 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Sulphur/Pyrite
Secondary Commodities: Silver
Township or Area: Tuuri
Latitude: 48° 45' 35.12" Longitude: -86° 53' 32.93"
UTM Zone: 16 Easting: 507902 Northing: 5400755 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D15SW
Point Location Description: Lakeshore outcrop
Location Method: Field Visit
Access Description: The occurrence is exposed on the shore of Lake Superior, within Santoy Bay about 1.2 km south of the mouth of the Steel River in Tuuri Township, approximately 16 km east of Terrace Bay (claim map G-635, Tuuri Township). Access may be gained by means of a old road/trail which extends south from Highway 17 at a point approximately 200 m east of the Steel River bridge. Just before the shoreline of Lake Superior is reached a walking trail heads off to the east for approximately 1.25 km. The shoreline of Santoy Bay may also be followed as the Kingdom occurrence outcrops on the shoreline of Lake Superior.
1951: Trenching; G. Simard and P. Swetz. 1955-1982: The occurrence was staked several times by various parties but no work was recorded. 1983: Airborne geophysical survey (EM, MAG, VLF-EM); Aerodat Limited. 1984: Ground geophysical survey (EM and MAG), prospecting and sampling; Kingdom Resources Limited. Property examination and lithogeochemical sampling; OGS Resident Geologist staff. 1985: Geochemical survey; Kingdom Resources Limited. Property examination and lithogeochemical sampling; OGS Resident Geologist staff. 1986-1987: Diamond drilling (4 holes totalling 398 m); Kingdom Resources Limited. 1994: Prospecting and lithogeochemical sampling; B. Fowler, M. Shuman and D. Leishman. 1995: Prospecting, reconnaissance geological mapping and sampling; Echo Bay Mines Ltd.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.5077 | 42D15SW0059 | 42D15SW0059 |
| 2.8612 | 42D15SW0068 | 42D15SW0068 |
| 2.5692 | 42D15SW0089 | 42D15SW0089 |
| 2.6667 | 42D15SW0076 | 42D15SW0076 |
| 2.16680 | 42D15SW0005 | 42D15SW0005 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Archean
Dec 07, 2005 (D McKay) - The geology of the Kingdom occurrence is described by Patterson et al. (1984): An Algoman-type sulphide facies ironstone strikes northeast, has a near vertical dip, and varies up to 10 m in width. The ironstone consists of interlaminated pyrite, graphitic slate, and minor chert. It is situated between graded turbidite sequences (and a possible tuffaceous unit) to the northwest and pillowed metavolcanics to the southeast. The metasediments have been folded and have a well-developed axial planar cleavage, especially in the graphitic slates. Late diabase dikes and a felsic porphyry intrude the sequence in the vicinity of the ironstone. Narrow quartz veins parallel to the cleavage are present. Schnieders (1987) described the Kingdom occurrence as a sulphide-facies iron formation consisting of pyritic-carbonaceous slate, disseminated, massive, nodular and laminated pyrite and chert or siliceous sedimentary rock. The Kingdom iron formation occurs at the contact between altered pillowed mafic flows and turbiditic metasedimentary rocks. A low-temperature hydrothermal venting model is suggested for the sulphide deposition, however, shearing and deformation have been focused within these fine-grained chemical/clastic rocks. The structural history is a complex one and the sulphide mineralogy has certainly been somewhat remobilized and reworked.
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Host |
|---|---|---|---|---|
| Mafic pillowed flow | 2 | Pillowed | Near | |
| Siltstone | 3 | Near | ||
| Mudstone | 4 | Near | ||
| Sandstone | 5 | Near | ||
| Diabase | 6 | Diabase | Near | |
| Porphyry-unsubdivided | 7 | Felsic | Near |
Dec 07, 2005 (D McKay) - Schnieders (1987) described the Kingdom occurrence as a sulphide-facies iron formation consisting of pyritic-carbonaceous slate, disseminated, massive, nodular and laminated pyrite and chert or siliceous sedimentary rock. The Kingdom iron formation occurs at the contact between altered pillowed mafic flows and turbiditic metasedimentary rocks. A low-temperature hydrothermal venting model is suggested for the sulphide deposition, however, shearing and deformation have been focused within these fine-grained chemical/clastic rocks. The structural history is a complex one and the sulphide mineralogy has certainly been somewhat remobilized and reworked.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Ore | ||||
| 3 | Sphalerite | Economic | Ore |
Dec 07, 2005 (D McKay) - Rose (1951, assessment files) noted that, in general: The graphitic schists commonly contained narrow bands of pyrite, ? inch (0.64 cm) wide or less, and nodules of pyrite. The estimated pyrite content of the graphitic schist (ironstone) was usually less than 10% and was never more than 50%. Ross (1984, assessment files) reports that: In tracing the (extension of the Kingdom) zone eastward the total sulphide content decreases, chiefly pyrite, with an increase in pyrrhotite mineralization. Widely scattered specks of sphalerite occurred within the section. Schnieders (1987) described pyritic-carbonaceous slates up to 20 m thick which contain chert layers up to several meters thick. Diamond drilling in 1986 intersected up to 67 m of iron formation, which is interpreted as representing at least 40 m true thickness. Pyritic-carbonaceous slate is interlaminated with alternating siltstone, pyrite and chert. Massive, laminated and nodular pyrite are also present, with massive layers up to 20 cm thick. The pillowed metavolcanic flows near the contact with the Kingdom iron formation appear to display an enrichment in SiO2, K2O, CaO and sulphides and a depletion in Na2O, MgO and Fe2O3 (Schnieders 1987). Cavey and Penner (1986) reported anomalous gold values from the graphite schist horizon near the footwall contact of the Kingdom occurrence. Of the four diamond drill holes three intersected low gold values of up to 0.036 ounce per ton Au across 3 m in Hole 86-1. The elevated gold values in the graphite schist occur near the contact with a diabase dike. In addition assays of a narrow felsic dike which intrudes the Kingdom iron formation assayed up to 2120 ppb Au (Schnieders 1987). Grab samples collected from the occurrence in 1983 by OGS Resident Geologist staff returned assay values which varied from trace to 0.06 opt Au, <2 to 25 ppm Ag, 62 to 340 ppm Zn and 29 to 221 ppm Cu.
Dec 07, 2005 (D McKay) - The pillowed metavolcanic flows near the contact with the Kingdom iron formation appear to display an enrichment in SiO2, K2O, CaO and sulphides and a depletion in Na2O, MgO and Fe2O3 (Schnieders 1987).
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District
Publication Number: M2232 Scale: 1:253,440 Date: 1973
Author: Carter M.W., McIlwaine W.H., Wisbey P.A.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of the Jackfish-Middleton area, District of Thunder Bay
Publication Number: R050 Date: 1997
Author: Walker J.W.R.
Publisher Name: Ontario Dept. of Mines
Location:
Book - GEOLOGY OF THE SCHREIBER GREENSTONE ASSEMBLAGE; ILSG GUIDEBOOK, V.42,PT.2C
Publication Number: Guide Book Date: 1995
Author: Smyk, M.C. and Schnieders, B.R.
Publisher Name:
Location: Thunder Bay RGP
Map - Jackfish-Middleton area, Thunder Bay District
Publication Number: M2107 Date: 1967
Author: Walker J.W.R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.
Publication Number: OFR5951 Page: 640-646 Date: 1996
Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.
Publisher Name: Ontario Geological Survey
Location:
Compend - Report of activities, 1983, Regional and Resident Geologists
Publication Number: MP117 Page: 93-94 Date: 1984
Author: Kustra C.R.
Publisher Name: Ontario Geological Survey
Location:
Thesis - Geology of Sulphide-Facies Iron Formations and Associated Rocks in the Lower Steel River - Little Steel Lake Area, Terrace Bay, Ontario Area
Publication Number: MSc thesis Date: 1987
Author: Schnieders, B.R.
Publisher Name: Lakehead University
Location: Thunder Bay RGP
Mono - Geological studies in the Wabigoon, Quetico and Abitibi-Wawa subprovinces, Superior Province of Ontario, with emphasis on the structural development of the Beardmore-Geraldton belt
Publication Number: OFR5724 Date: 1989
Author: Williams H.R.
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 Thunder Bay South Resident Geologist District Office