Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000000251

Record: MDI000000000251

General

Mineral Record Identification
Record Name(s) U2 Kimberlite - 2007
Related Record Type
Related Record(s)
Record Status Prospect
Date Created 2007-Feb-27
Date Last Modified 2023-Mar-16
Created By
Revised By

Commodities

Primary Commodities: Kimberlite, Diamond



Location

Township or Area: BMA 528 844

Latitude: 52° 56' 42.04"    Longitude: -84° 46' 22.23"

UTM Zone: 16    Easting: 649645   Northing: 5868475    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 43C15NW

Point Location Description: GPS co-ordinates for Metalex DDH U2-1

Location Method: Field Visit with GPS

Access Description: The site is accessible by air from Attawapiskat



Exploration History

2006-2010: Metalex Ventures Ltd. - AEM, AMAG, GC, DD-5-3585 feet, 7 delineation drill holes, 12 RC drill holes (391 tonnes)


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-5808/ 2.39900 20000003667 20000003667

Geology

Province: Paleozoic and Mesozoic Basins

Subprovince: Hudson Bay Lowland



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Kimberlite-Unsubdivided 1 Brecciated Host
Limestone 2 Adjacent

Lithology Comments

Oct 19, 2009 (A Wilson) - The discovery of a second, new kimberlite, the U2 kimberlite, was announced in January 2007. This kimberlite has a geophysical surface area of approximately 7 ha and was intersected at a depth of approximately 17 m The kimberlite is described as green in colour and weakly altered breccia. It contains limestone xenoliths and some granite xenoliths. Olivine macrocrysts are moderately serpentinized. The U2 kimberlite has an estimated surface area of 7 ha.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1DiamondEconomicOre

Mineralization Comments

Feb 03, 2011 (A Wilson) - A 87.88 kg sample of kimberlite was processed from a single drill hole, 2 microdiamonds were recovered. Within this sample, 67 Group I eclogitic garnets, 20 cpx, 16 ol, 9 opx, 5 chromites and 3 peridotitic G10 garnets were recovered, with compositions analogous to those found in the diamond inclusion field. A total of 54 diamonds were recovered from 1700.6 kg of core drilled from the pipe. A total of 226 commercial sized diamonds were recovered from the first 11 reverse circulation drill holes completed in 2010. Approximately 42% of the sones are white. A grade of approximately 18.1 cpht was returned below 90 m depth.



Mineral Record Details

Classification
RankClassification            
2 Diamond
1 Kimberlite
Characteristics
Rank Characteristic            
2 Discordant
1 Intrusive

References

Publication - News Release

Publication Number: Date: 2007

Author: Metalex Ventures Ltd.

Publisher Name:

Location: Timmins RRGO riles


Publication - News Release

Publication Number: Date: 2007

Author: Metalex Ventures Ltd.

Publisher Name:

Location: Timmins RRGO files


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:


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:


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Ministry Contact Information

For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office