Ontario Geological Survey
Permanent Link to this Record:
MDI43B12NW00002
| Record Name(s) | India - 1 - 2000, Grid I1 - 1995, Monopros DDH I1-1-88 - 1988 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1995-Mar-24 |
| Date Last Modified | 2022-Oct-06 |
| Created By | |
| Revised By |
Primary Commodities: Diamond, Kimberlite
Township or Area: BMA 526 834
Latitude: 52° 38' 50.1" Longitude: -83° 48' 18.15"
UTM Zone: 17 Easting: 310242.003 Northing: 5836725.001 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 43B12NW
Point Location Description: Drill collar for ddh I1-1-88 from sketch in T.3263
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. 1988-89: Monopros Ltd. - ground magnetic survey, 1 ddh (557 ft). 1998: Monopros Ltd. - ground geophysical survey. 2002: DeBeers Canada Exploration Inc. - airborne geophysics. 2003: DeBeers Canada Inc. - DD. 2006: DeBeers Canada Inc. - airborne geophysics
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-4129 / 2.19229 | 43B12NW2002 | 43B12NW2002 |
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 kimberlite is overlain by 177 feet of limestone. The kimberlite is described as hypabyssal macrocrystic kimberlite containing rare mantle xenoliths and small limestone xenoliths. Garnet, clinopyroxene and ilmentie megacrysts have been noted but are uncommon. The garnet compositions indicate a scattering in the G-10 field, but most all into the G-9 field. The kimberlite contains a population of low-chrome to chrome-free garnet.
| 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 | ||||
| 4 | Chromite | Economic | Ore |
File - Resident Geologist files T-3263, T-4685
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: 22-23 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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