Ontario Geological Survey
Permanent Link to this Record:
MDI000000000700
| Record Name(s) | Big Daddy Chromite Deposit - 2009, Spider DDH FW-06-03 - 2006 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 2009-Sep-01 |
| Date Last Modified | 2023-Aug-03 |
| Created By | |
| Revised By |
Primary Commodities: Chromium, Nickel, Platinum, Palladium
Township or Area: BMA 527 862
Latitude: 52° 45' 38.6" Longitude: -86° 14' 9.33"
UTM Zone: 16 Easting: 551560 Northing: 5845927 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 43D16SW
Point Location Description: precise
Location Method: Data Compilation
2003-04: R. Nemis staked the claim, then optioned the property to Freewest Resources Inc. who undertook airborne geophysics, ground geophysics and drilled 1 DDH totalling 190 m, 2005, Spider Resources Inc. and KWG Resources signed an option agreement with Freewest. 2006: Spider & KWG drilled 3 DDH totalling 804.5 m. 2008: Spider & KWG drilled 8 DDH totalling 6097.7 m. 2009-10: Spider & KWG - ground geophysics, metallurgical testing, gravimetric survey, and drilled 32 DDH totalling 5662 m. Cliffs Natural Resources acquired Spider in 2010. 2011: Metallurgical test results describe the Big Daddy Ore as being competent and the yield of saleable, direct shipping, lumpy ore approaches 100%. Xstrata lab produces the first high carbon ferrochrome in a test melt of the Big Daddy chromite bulk sample. KWG commissioned a Preliminary Economic Assessment for the deposit which includes the development of a railway and power line to the site, an open pit mine and associated crushing plant and infrastructure. 2012: A 9-hole, 1909 m metallurgical drilling program completed producing a 4600 kg bulk sample, which was sent to Xstrata for analysis, also a 38-hole 12,000 m resource delineation diamond drilling program was also completed, KWG Resources invested $15 million in its preferred railway corridor from the Ring of Fire area and acquired 49 unpatented claims (Fishtrap Property) from INV Metals Inc. the updated resource estimate is based on a 42-hole drilling program totalling 13,459 m carried out by Cliffs Chromite Far North Inc.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-5137 / 2.29707 | 20000000358 | 20000000358 |
| T-5144 / 2.29709 | 20000000357 | 20000000357 |
| T-5335 / 2.32028 | 20000001310 | 20000001310 |
| 2.54175 | 20000013486 | 20000013486 |
Province: Superior
Subprovince: Sachigo
Terrane: North Caribou
Domain: Oxford-Stull
Geological Age: Archean
Jan 21, 2015 (Therese Pettigrew) - The area is underlain by Archean volcanic sand ultramafic rocks intruded by a granodiorite complex. The Big Daddy chromite deposit is hosted by a multiphase layered ultramafic intrusion consisting of peridotite, olivine cumulates including dunite, chromite, pyroxenite and gabbro.
| Rock Type | Rank | Composition | Texture | Relationship | Peridotite | 1 | Peridotite | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Footwall | ||
| Dunite | 3 | Dunite | Adjacent |
Dec 15, 2010 (A Wilson) - The diamond drill hole intersected 221 m of ultramafic intrusive which is described as fine to coarse grained. The ultramafic shows strong silicification at the contact with the underlying mafic metavolcanic rocks. The drill hole terminated in intermediate to felsic metavolcanics and feldspar porphyry. A re-logging of drill hole FW-08-07 indicates the presence of dunite, harzburgite, pyroxenite and gabbro in the ultramafic intrusive. The chromite is hosted in the peridotitic phase of the intrusive. Drilling and geophysical data suggest that the sill segment containing the Big Daddy deposit is about 1000m thick. Limited information suggests that the sill thins to the southwest.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chromite | Economic | Ore | ||||
| 2 | Magnetite | Economic | Gangue | ||||
| 3 | Pyrrhotite | Economic | Gangue | ||||
| 4 | Pyrite | Economic | Gangue |
Dec 15, 2010 (A Wilson) - Two chromite bands were intersected in the drill hole. One at 153.27 m (1.03 m wide) and the other at 159 m (0.85 m). The intersections assayed 22.7% Cr2O3 and 23.7% Cr2O3. Anomalous PGE values also were recovered within and adjacent to the chromite layers. Just above the first layer of chromite and within the chromite layer, assays of total precious metals were 0.19 g/t and 0.41 g/t respectively. The second chromite layer yielded 0.76 g/t total precious metals from 158.8 to 159.05 m and 0.70 g/t from 159.05 to 159.65m. A 1.03 m section of core between 153.27 and 154.3 m returned 34.49% Cr2O3. The chromite mineralization occurs in three forms: disseminated (footwall zone), semi-massive (intermediate zone) and massive (hanging wall). The massive ore has an estimated 30-40% Cr2O3, the semi-massive zone has 20-30% Cr2O3 and the disseminated or has an estimated 5-20% Cr2O3. Nickel values from within the chromite layers range from 0.11% Ni over 7.5 m to 0.25% Ni over 3.0 m. The same intervals also show enrichment in PGE ranging from 0.05 g/t Pd over 2.0 m to 0.34 g/t Pd over 9.2 m. The peridotite unit contains the chromite mineralization. There are two identified bands of chromite mineralization. The lower unit is characterized by variable chromite contents between 15% and 40% Cr2O3. The upper unit comprises uniform, approximately 40% Cr2O3 grades, often within 1% over tens of metres. The grade of the upper unit is consistent over the deposit with the exception of the southwest part where grades drop to approximately 38% Cr2O3.
| Rank | Classification |
|---|---|
| 1 | Mafic-Ultramafic Intrusion |
| Rank | Characteristic |
|---|---|
| 1 | Massive |
| 2 | Stratiform |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 1100 | 400 | 300 |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Big Daddy Chromite Deposit | 2014 | Measured Mineral Resource | 23300000 | 20% cutoff | Chromium 31.7 % | |
| Big Daddy Chromite Deposit | 2014 | Indicated Mineral Resource | 5800000 | NI 43-101 Technical Report (Aubut) | 20% cutoff | Chromium 30.1 % |
| Big Daddy Chromite Deposit | 2014 | Inferred Mineral Resource | 3400000 | NI 43-101 Technical Report (Aubut) | 20% cutoff | Chromium 28.1 % |
| Big Daddy Chromite Deposit | 2012 | Measured Mineral Resource | 29500000 | NI 43-101 Technical Report (Aubut) | At a 15% cutoff, the measured resource is 29.5 MT grading 29% Cr2O3 | Chromium 29 % |
| Big Daddy Chromite Deposits | 2012 | Inferred Mineral Resource | 4890000 | CAMH 2012-2013, p. 170, 385 | Inferred: 4.89Mt @ 25.0% Cr2O3, cut-off grade of 15% Cr2O3 | Chromium 25.0 % |
| Big Daddy Chromite Deposit | 2012 | Measured + Indicated Resource | 37400000 | CAMH 2012-2013, p 170, 385 | Cutoff grade of 15% Cr2O3. Measured and Indicated: 37.4Mt @ 28.5% Cr2O3 | Chromium 28.5 % |
| Big Daddy Chromite Deposit | 2012 | Indicated Mineral Resource | 7900000 | NI 43-101 Technical Report (Aubut) | At 15% cutoff, the indicated resource is 7.9 MT grading 26.7% Cr2O3. | Chromium 26.7 % |
| Big Daddy Chromite | 2012 | Inferred Mineral Resource | 4800000 | NI 43-101 Technical Report (Aubut) | At 15% cutoff the inferred resource is 4.8MT grading 25% Cr2O3. | Chromium 25 % |
| Big Daddy | 2011 | Inferred Mineral Resource | 20500000 | Buck et al, 2011, NI 43-101 technical report, p.3 | 20.5 million tonnes grading 37.47% Cr2O3 | Chromium 37.47 % |
| Big Daddy Massive Chromite Reserves | 2011 | Inferred Mineral Resource | 16300000 | Buck et al, 2011, NI 43-101 technical report, p.2 | 16.3 million tonnes grading 39.09% Cr2O3 | Chromium 39.09 % |
| Big Daddy Massive Chromite Reserves | 2011 | Indicated Mineral Resource | 23200000 | Buck et al, 2011, NI 43-101 technical report, p.2 | 23.2 million tonnes grading 40.66% Cr2O3 | Chromium 40.66 % |
| Big Daddy | 2011 | Indicated Mineral Resource | 26400000 | Buck et al, 2011, NI 43-101 technical report, p.3 | 26.4 million tonnes grading 39.37% Cr2O3 | Chromium 39.37 % |
| Big Daddy | 2010 | Inferred Mineral Resource | 163000000 | Gowans et al 2010, NI 43-101 technical report | 16.3 million tonnes grading 39.09% Cr2O3 | Chromium 39.09 % |
| Big Daddy | 2010 | Indicated Mineral Resource | 232000000 | Gowans et al 2010, NI 43-101 technical report | 23.2 million tonnes grading 40.66% Cr2O3 | Chromium 40.66 % |
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 Spider Resources Inc.
Publication Number: Date: 2008
Author: Spider Resources Inc.
Publisher Name:
Location: Timmins RGO files
Publication - NI 43-101 technical report on the Big Daddy Chromite Deposit and associated Ni-Cu-PGE
Publication Number: 2009 NI 43-101 Date: 2009
Author: R. Gowans and C. Murahwi
Publisher Name:
Location: Timmins RGO files
Publication - Updated technical report on the McFaulds Lake Project, Porcupine Mining Division prepared for UC Resources Limited and Spider Resources Inc.
Publication Number: 2009 NI 43-101 Date: 2009
Author: H. Lahti
Publisher Name:
Location: Timmins RGO files
Publication - Technical Report on the mineral resource estimate for the Big Daddy Chromite Deposit, McFauld's Lake Area, 170p.
Publication Number: 2010 NI 43-101 Date: 2010
Author: R. Gowans, J. Spooner, I.A. J. San Martin, C. Murahwi
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:
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 - NI 43-101 technical report on the preliminary economic assessment of the Big Daddy chromite project, McFaulds Lake area, James Bay Lowlands, 204 p.
Publication Number: 2011 NI 43-101 Date: 2011
Author: M. Buck, D.A. Orvana, C. Sharpe, B. LeBlanc, C. Z. Murahwi
Publisher Name:
Location: Timmins RGO
Publication - National Instrument 43-101 Technical Report, Big Daddy Chromite Deposit, McFauld's Lake Area, Ontario, Canada, Porcupine Mining Division, NTS 43D16, Mineral Resource Estimation Technical Report
Publication Number: 2012 NI 43-101 Date: 2012
Author: Aubut, A.
Publisher Name:
Location: Thunder Bay RGO files
Publication - National Instrument 43-101 Technical Report, Big Daddy Chromite Deposit, McFaulds Lake Area, Ontario, Canada, Porcupine Mining Division, NTS 43D16, Mineral Resource Estimation Technical Report
Publication Number: 2014 NI 43-101 Date: 2015
Author: Aubut, A.
Publisher Name: Sibley Basin Group for KWG Resources Inc.
Location: SEDAR
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