Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42I12SW00003

Record: MDI42I12SW00003

General

Mineral Record Identification
Record Name(s) Onexco RCH ONEX-82-05 - 1982
Related Record Type PARTIAL
Record Status Occurrence
Date Created 2000-May-30
Date Last Modified 2021-Nov-22
Created By D DRAPER
Revised By A Wilson

Commodities

Primary Commodities: Lignite, Oil Shale



Location

Township or Area: Gentles

Latitude: 50° 34' 22.11"    Longitude: -81° 55' 24.12"

UTM Zone: 17    Easting: 434615.14   Northing: 5602728.12    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42I12SW

Point Location Description: Collar location of reverse circulation hole ONEX-82-5

Location Method: Based on Assessment

Access Description:



Exploration History

1982-1983: Ontario Energy Resources Limited (aka ONEXCO ) - Reverse circulation drilling; geophysical wireline (gamma-ray and neutron) logging; heat value, palynological, petrographic and sedimentological analyses, reverse circulation drilling; geophysical wireline logging.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-2888 / 63.4219, OM-82-5-C-171 42J09SE0001 42J09SE0001
T-2886/ 63.4180, OM-82-5-C-28 42J08NE0001 42J08NE0001

Geology

Province: Paleozoic and Mesozoic Basins

Subprovince: Moose River Basin

Geological Age: Mesozoic   Geochronological Age: Cretaceous--Albian    Geochron. Age Ref.: Palynological Report



Geology Comments

Dec 07, 2005 (D DRAPER) - Lignites of the region are Middle Albian (100 mya B.P.). The oil shale occurs in the Middle member of the Devonian Long Rapids Formation.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Lignite 1 Is
Terrigenous-Clastic-Unsubdivided 2 Oil Shale Host

Lithology Comments

Mar 19, 2014 (D DRAPER) - Lignite occurs with wood chips in carbonaceous clay over a 66.5ft interval (235.5 - 302 ft). Minor, very fine-grained sand seams appear intermittently throughout the sequence. Lignite has a vitreous lustre and is also pyritiferous. The main seam occurs from 246 - 268 feet (22 feet in thickness) and a secondary seam (8 feet) at 287 295 ft. Hole ONEX-W83-22, drilled approximately 750m to the southwest of ONEX-82-5 encountered 3 seams of lignite, largest and deepest being a 5.8 foot unit of compact, dark brown woody to black lignite at a depth of 225.8 ft. Oil Shale: The organic-rich middle member of the Long Rapids Formation is made up predominantly of black, grey, and dark brown shales with minor thin bands of greenish-grey pelite.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1HydrocarbonEconomicOre
2LigniteEconomicOre

Mineralization Comments

Dec 07, 2005 (D DRAPER) - Analysis of lignite from main zone yielded a best heat value of 10,295 BTU/lb, with ash at 13.72%. Two other samples also returned dry values in this range (10,096 BTU / 14.16% ash; 10,184 BTU / 13.72% ash). Analysis of a zone of Long Rapids Fm shale from 402 to 426 feet yielded a Fischer Assay oil yield of 7.85 US gal/short ton (or 3.11%).



Assay Samples

Mineral Record Details

Classification
RankClassification            
1 Fossil Fuel

References

Mono - Mesozoic geology and lignite potential of the Moose River Basin

Publication Number: OFR5777 Scale:     Date: 1991

Author: Telford P.G., Long D.G.F., Norris G., Zippi P., Griffis R.

Publisher Name: Ontario Geological Survey


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Ministry Contact Information

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