Ontario Geological Survey
Permanent Link to this Record:
MDI000000000694
| Record Name(s) | Blackbird Two Deposit - 2010, Blackbird Two - 2008, Noront NOT-08-57 - 2008, Double Eagle Property - 2003 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 2009-Aug-11 |
| Date Last Modified | 2022-Mar-10 |
| Created By | |
| Revised By |
Primary Commodities: Chromium
Township or Area: BMA 526 862
Latitude: 52° 43' 46.16" Longitude: -86° 18' 21.59"
UTM Zone: 16 Easting: 546865 Northing: 5842405 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 43D09NW
Point Location Description: precise
Location Method: Data Compilation
Access Description: Access by air from Nakina.
2003-2012: Noront Resources Ltd. - airborne geophysics, ground geophysics, gravity survey, DD-198, metallurgical testing
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.37704 | 20000002819 | 20000002819 |
| 2.42415 | 20000004175 | 20000004175 |
| 2.42568 | 20000000294 | 20000000294 |
| 2.45972 | 20000004813 | 20000004813 |
| 2.29682 | 20000000351 | 20000000351 |
| 2.46316 | 20000005642 | 20000005642 |
| 2.29683 | 20000000444 | 20000000444 |
Province: Superior
Subprovince: Sachigo
Terrane: North Caribou
Domain: Oxford-Stull
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Peridotite | 1 | Peridotite | Host |
|---|---|---|---|---|
| Granodiorite | 2 | Footwall |
Dec 02, 2010 (A Wilson) - Three parallel bands of chromite mineralization extend beneath a gravity anomaly, dipping approximately 65° NW within the peridotite sill. A simplified lithological succession of the Ring of Fire intrusion from the base upwards comprises: talc-altered peridotite/dunite, serpentinized dunite/peridotite with chromite bands and layers, peridotite with lesser chromite, talc-tremolite schist and gabbro. The stratigraphy has been overturned and is now dipping roughly 60° towards 335° azimuth. There is geophysical evidence of folding to the southwest of the deposit. Intense faulting and associated alteration cuts through the southern part of the Blackbird 2 trending north-northeast and is likely sub-vertical. The fault appears to widen between the Blackbird 2 zone 2 (BB2-2) chromite and the southernmost massive chromite layer (BB2-4)
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chromite | Economic | Ore | ||||
| 2 | Magnetite | Economic | Gangue |
Aug 01, 2014 (A Wilson) - Assay results from the discovery hole returned 31.07% Cr2O3 over 0.4 m (21.3% Cr, 16.90% Fe). On 16.4 m section of core averaged 26.29% Cr2O3 (17.99% Cr and 14.28%Fe). The chromite layers dip steeply at approximately 60° to the west, paralleling the contact between the peridotite sill and the granodiorite. The mineralization consists of both thick massive beds of chromitite up to several tens of m thick, and extensive intersections of intercalated chromitite and silicate rocks containing various amounts of chromite, commonly interbedded on scales of mm to m. NOT-11-1G201 which intersected 46.97m averaging 42.74% Cr2O3 at a 2.29:1 Cr to Fe ratio
| Rank | Classification |
|---|---|
| 1 | Mafic-Ultramafic Intrusion |
| 2 | Magmatic |
| Rank | Characteristic |
|---|---|
| 1 | Layered |
| 2 | Stratiform |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 1000 | 500 |
Date: Aug 11, 2009
Geologist: A Wilson
Notes: Diamond drilling has delineated a layered chromitite body along a strike length of approximately 1000 m, down to a vertical depth of 500 m over wide core widths
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Blackbird Deposit | 2012 | Inferred Mineral Resource | 23500000 | NI43-101 12/31/2011 | Cut-off grade of 30% Cr2O3 | Chromium 33.14 Percent |
| Blackbird Deposit | 2012 | Measured + Indicated Resource | 20500000 | NI43-101 12/31/2011 | Chromium 35.76 Percent | |
| Black Bird 2 - Fragmented Zones | 2011 | Measured Mineral Resource | 987000 | Murahwi et al. NI 43-101 report, p. 78 | Chromium 24.4 Percent | |
| Black Bird 2 - Fragmented Zones | 2011 | Indicated Mineral Resource | 306000 | Murahwi et al. NI 43-101 report, p. 78 | Chromium 26 Percent | |
| Black Bird 2 - Fragmented Zones | 2011 | Inferred Mineral Resource | 2586000 | Murahwi et al. NI 43-101 report, p. 78 | Chromium 31.39 Percent | |
| Black Bird 2 - Fragmented Zones | 2010 | Indicated Mineral Resource | 306000 | Gowans et al. NI 43-101 report, p. 91 | Chromium 26 Percent | |
| Black Bird 2 - Fragmented Zones | 2010 | Inferred Mineral Resource | 2586000 | Gowans et al. NI 43-101 report, p. 91 | Chromium 31.39 Percent | |
| Black Bird 2 | 2010 | Measured Mineral Resource | 4191000 | Gowans et al. NI 43-101 report, p. 90 | Chromium 36.55 Percent | |
| Black Bird 2 | 2010 | Indicated Mineral Resource | 1476000 | Gowans et al. NI 43-101 report, p. 90 | Chromium 36.08 Percent | |
| Black Bird 2 | 2010 | Inferred Mineral Resource | 3488000 | Gowans et al. NI 43-101 report, p. 90 | Chromium 34.93 Percent | |
| Black Bird 2 - Fragmented Zones | 2010 | Measured Mineral Resource | 987000 | Gowans et al. NI 43-101 report, p. 91 | Chromium 25.4 Percent |
Map - Precambrian Geology of the Hudson Bay and James Bay Lowlands Region Interpreted from Aeromagnetic Data-East Sheet
Publication Number: P3598-REV Scale: 1:500,000 Date: 2008
Author: Stott G.M.
Publisher Name: Ontario Geological Survey
Location:
Publication - Press releases Noront Resources Ltd.
Publication Number: News Release Date: 2008
Author: Noront Resources Ltd.
Publisher Name:
Location: Timmins RGO files
Map - Precambrian Geology of the Hudson Bay and James Bay Lowlands Region Interpreted from Aeromagnetic Data-South Sheet
Publication Number: P3599-REV Scale: 1:500,000 Date: 2009
Author: Stott G.M.
Publisher Name: Ontario Geological Survey
Location:
Publication - Technical Report on the Mineral Resources Estimate for the Black Bird Chrome Deposits, James Bay Lowlands, 188 p
Publication Number: 2010 NI 43-101 Date: 2010
Author: R. Gowans, J. Spooner, A. J. San Martin, C. Murahwi
Publisher Name:
Location: Timmins RGO
Mono - Mineral Deposits of Northern Ontario, North of Latitude 49° 30'
Publication Number: OFR6242 Date: 2009
Author: Stott G.M., Josey S.D.
Publisher Name: Ontario Geological Survey
Location:
Publication - Technical Report on the updated mineral resource estimate for the Eagle's Nest Property, McFaulds Lake Project, 128 p.
Publication Number: 2011 NI 43-101 Date: 2011
Author: C. Murahwi, A.J. San Martin, R. M. Gowans and J. Spooner
Publisher Name:
Location: Timmins RGO
Publication - Technical Report on the Mineral Resources Estimate for the Back Bird Chrome Deposits, McFaulds Lake Property, James Bay Lowlands, 186 p
Publication Number: 2013 NI 43-101 Date: 2013
Author: C. Murahwi , A. J. San Martin, R. Gowans, J. Spooner
Publisher Name:
Location:
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