Ontario Geological Survey
Permanent Link to this Record:
MDI43B13NW00003
| Record Name(s) | Tango-1 - 2000, Grid T - 1995, Monopros DDH T-1-88 - 1988 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1995-Mar-28 |
| Date Last Modified | 2022-Oct-06 |
| Created By | |
| Revised By |
Primary Commodities: Diamond, Kimberlite
Township or Area: BMA 527 834
Latitude: 52° 52' 23.06" Longitude: -83° 57' 36.87"
UTM Zone: 17 Easting: 300779.001 Northing: 5862255.998 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 43B13SW
Point Location Description: Drill collar for T-1-88
Location Method: Based on Assessment
Access Description: Via helicopter from Attawapiskat.
1984-86: Monopros Ltd.: regional sediment sampling program. 1986-87: Monopros Ltd.: airborne magnetic survey. 1988: Monopros Ltd. - ground magnetic survey, 1 ddh (647 ft). 1998: Monopros Ltd. - ground geophysical survey. 2001: DeBeers Canada Exploration Inc. - RC drilling (9 holes, 585.7 m), mini-bulk sample (15673 kg). 2006: DeBeers Canada Ltd. - airborne geophysics. 2008: De Beers Canada Ltd. - gravity survey
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-3261 / 2.11999 | 43B13NW0006 | 43B13NW0006 |
| T-3261 / 11 | 43B13NW0005 | 43B13NW0005 |
Province: Paleozoic and Mesozoic Basins
Subprovince: Hudson Bay Basin
Geological Age: Mesozoic Geochronological Age: 180 MA Geochron. Age Ref.: OFR 6019
Dec 07, 2005 (A Wilson) - In the Attawapiskat area there are both Early Jurassic and Proterozoic kimberlites. The early Jurassic kimberlites are centred at approximately latitude 52 45N and 83 50 W. These kimberlites occur along the Winisk River fault trend and occur where this fault splays toward James Bay. The kimberlite distribution pattern is elongated northwest along the Winisk River fault, parallel to the NW trend of the Proterozoic Sutton Inlier (120 km north of Attawapiskat). The Early Jurassic kimberlites lie just south of the NE trending Cape Henrietta Maria Arch.
| Rock Type | Rank | Composition | Texture | Relationship | Kimberlite-Unsubdivided | 1 | Host |
|---|---|---|---|---|
| Limestone | 2 | Hanging Wall |
Dec 07, 2005 (A Wilson) - The magnetic signature of the kimberlite suggests that it might be a multiple intusion. The kimberlite is described as a hypabyssal macrocrystic kimberlite and kimberlite breccia. The upper 80 m of the kimberlite is macrocystic kimberlite. Limestone and basement xenoliths are noted within the kimberlite. Blocks of limestone and sandstone are reported in the top portion of the drill hole and may represent blocks enclosed within the kimberlite. The heavy mineral concentrate is olivine rich and contained abundant garnet compared to other kimberlites in the area. Ilmenite is common and chromite is scarce. The garnet suite contains a few G-10 garnets and the chromite suite contained several grains whose composition is comparable to chromite intergrown with diamond.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Olivine | Economic | Ore | ||||
| 2 | Pyrope | Economic | Ore | ||||
| 3 | Ilmenite | Economic | Ore |
File - Resident Geologist files T-4281, T-4665
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Known Kimberlites of Eastern Ontario
Publication Number: P3321 Scale: 1:50,000 Date: 1995
Author: Zalnieriunas R.V., Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Kimberlites of the Attawapiskat Area, James Bay Lowlands, Northern Ontario
Publication Number: OFR6019 Page: 30 Date: 2000
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Article - Alkalic rock, carbonatite and kimberlite complexes of Ontario, Superior province
Publication Number: SV04-01.018 Page: 683-709 Date: 1997
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
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