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Ontario Geological Survey
Permanent Link to this Record:
MDI000000000260
| Record Name(s) | McFauld's #7 - 2004, Spider DDH MCF-04-40 - 2004 |
|---|---|
| Related Record Type | |
| Record Status | Occurrence |
| Date Created | 2007-Mar-19 |
| Date Last Modified | 2022-Jan-05 |
| Created By | A Wilson |
| Revised By | A Wilson |
Primary Commodities: Copper, Zinc
Township or Area: BMA 527 861
Latitude: 52° 45' 3.75" Longitude: -86° 11' 24.75"
UTM Zone: 16 Easting: 554657.001 Northing: 5844883.998 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 43D16SE
Point Location Description: Drill collar for MCF-04-40
Location Method: Field Visit with GPS
Access Description: By air from Nakina
2003-07: Spider Resources Ltd. - MAG, EM, DD-1-205.0 m, AEM, AMAG, 2008-09: UC Resources Inc. - gravity survey, DD-2 . 2011: Cliffs Chromite Far North Inc. - name change
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.23028 | 20000001310 | 20000001310 |
| 2.38108 | 20000002923 | 20000002923 |
| 2.43405 | 20000005401 | 20000005401 |
| 2.43990 | 20000005857 | 20000005857 |
Province: Superior
Subprovince: Sachigo
Terrane: North Caribou
Geological Age: Archean
Mar 19, 2007 (A Wilson) - The stratigraphic section consists of Archean-aged, steeply dipping, mafic to felsic volcanic rocks with minor amounts of interflow sediments intruded by sills and small stocks of gabbro and granites. The volcanic units have been isoclinally folded to produce a weak to very strong foliation.
| Rock Type | Rank | Composition | Texture | Relationship | Limestone | 1 | Fossiliferous | Near |
|---|---|---|---|---|
| Gabbro | 2 | Gabbro | Near | |
| Intermediate Tuff | 3 | Tuff | Host |
Mar 19, 2007 (A Wilson) - Diamond drilling intersected a gabbroic intrusion overlying a sequence of felsic tuffs and laipilli tuffs. Mineralization is hosted by the felsic metavolcanic rocks.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Sphalerite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Galena | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Magnetite | Economic | Gangue | ||||
| Muscovite | Alteration | Sericitization | 1 | Weak | Disseminated | ||
| Chlorite | Alteration | Chloritic | 2 | Weak | Disseminated |
Mar 19, 2007 (A Wilson) - Mineralization consists of an 8,.6 m core interval of 20-60% pyrite in thin (<2 cm) bands and 0-10% magnetite in thin (<2 cm) bands or as disseminations hosted by a chloritic felsic tuff. A 2.05 m section of core graded 1.15% Zn and 0.19% Cu approximately 15 m down hole from the mineralized zone in a section with up to 55% disseminated pyrite and sphalerite.
Mar 19, 2007 (A Wilson) - The chlorite alteration increases towards the mineralized zone.
Publication - Preliminary review of a VMS occurrence, McFauld's Lake area, NW Ontario for Spider Resources Ltd.
Publication Number: Scale: Date: 2003
Author: Franklin, J. M.
Publisher Name:
Publication - News Releases
Publication Number: Scale: Date: 2004
Author: Spider Resources Inc.
Publisher Name:
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
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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office