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Ministry of Energy Mines and Responsible for Core Review


NTS 93J - McLeod Lake


RGS 15 / GSC OF 1216 / BCGS GF2006-9 / GBC 2008-5GBC 2009-11 /
GBC 2009-14 / GBC 2013-6 / GBC 2013-8

The McLeod Lake (NTS 93J) reconnaissance-scale stream sediment and water survey was completed in 1985 and the resulting field and analytical data were released in 1986. A total of 1152 sediment and 940 water samples were collected from 1088 sample sites.


BC Geological Survey GeoFile 2006-9 reports new gold and trace metal data from the re-analysis of the McLeod Lake (NTS 93J) map sheet. This digital release consists of a report in PDF format, and appendices in a ZIP format file.


Geoscience BC Report 2008-5 is part of the QUEST project, which was funded by Geoscience BC in partnership with the Northern Development Initiative Trust, and covers a 46,000 square kilometre area extending from Williams Lake to north west of Mackenzie. This digital release includes results of the 2007 in-fill lake sediment and water survey as well as original data and new inductively coupled plasma mass spectrometry (ICPMS) results from a 1995 survey previously conducted in the adjacent Stuart Lake area.


Geoscience BC Report 2009-11 is part of the QUEST-West project, which covers over 40,000 kilometers from Vanderhoof and Fort St. James to Terrace and Kitimat. Geoscience BC in partnership with the Northern Development Initiative Trust and the Regional District of Bulkley-Nechako funded an infill drainage sediment and water survey in 2008 conducted in central British Columbia. This digital release includes results of the 2008 infill survey and parts of this package incorporate data from a number of previous lake and stream based surveys completed in the study area as well as the new reanalysis data that were released in January 2009 as part of the QUEST-West Project.


Geoscience BC Report 2009-14 is an investigation using SiroSOM for the Analysis of QUEST Stream-Sediment and Lake-Sediment Geochemical Data on all NTS sheets for 93 and 94 A, B, C and D. 


Geoscience BC Report 2013-6 presents INAA results for stream sediment samples collected during the original 1985 McLeod Lake RGS program. The McLeod Lake regional geochemical survey was conducted in 1985 (near Prince George) and included the collection of 1152 stream sediment samples.


Geoscience BC Report 2013-8 map shows ice flow patterns for NTS 093G, H (west) and J, and detailed ice flow history for parts of NTS 093J (near Prince George, BC).  The report also contains a regional ice flow model for the northern Interior Plateau region.  Constructed from previous mapping and recent field studies, the report is intended as an aid to mineral exploration in central BC. The report consists of one PDF sheet, and the ESRI ArcGIS shapefiles of striations, regional ice flow and detailed ice flow data.

Analytical Data



Sediments Sediments
element detection limit method element units detection limit/method
Zinc 2 ppm AAS Aluminum % 0.01  
Copper 2 ppm AAS Antimony ppm 0.02 1
Lead 2 ppm AAS Arsenic ppm 0.1 1
Nickel 2 ppm AAS Boron ppm 1  
Cobalt 2 ppm AAS Barium ppm 0.5  
Silver 0.2 ppm AAS Bismuth ppm 0.02  
Manganese 5 ppm AAS Cadmium ppm 0.01 0.1
Arsenic 0.5 ppm AAS-H Calcium % 0.01  
Mercury 10 ppb AAS-F Chromium ppm 0.5  
Vanadium 5 ppm AAS Cobalt ppm 0.1 2
Cadmium 0.2 ppm AAS Copper ppm 0.01 2
Tungsten 2 ppm COLOR Gallium ppm 0.2  
Antimony 0.2 ppm AAS-H Gold ppb 0.2  
Barium 40 ppm AAS Iron % 0.01 0.01
Iron 0.02% AAS Lanthanum ppm 0.5  
Molybdenum 1 ppm AAS Lead ppm 0.01 2
Uranium 0.5 ppm NASNC Magnesium % 0.01  
Tin 1 ppm AAS Manganese ppm 1 5
Loss on Ignition 0.10% GRAV v Mercury ppb 5 5
Molybdenum ppm 0.01 1
Waters Nickel ppm 0.1 2
element detection limit method Phosphorus % 0.001  
pH 0.1 GCE Potassium % 0.01  
Uranium 0.05 ppb LIF Scandium ppm 0.1  
Fluoride 20 ppb ION Selenium ppm 0.1  
Silver ppb 2 100
Sodium % 0.001  
Strontium ppm 0.5  
Sulphur % 0.02  
Tellurium ppm 0.02  
Thallium ppm 0.02  
Thorium ppm 0.1  
Titanium % 0.001  
Tungsten ppm 0.2  
Uranium ppm 0.1  
Vanadium ppm 2 5
Zinc ppm 0.1 2


The 1985 reconnaissance survey was undertaken by the British Columbia Ministry of Energy, Mines and Petroleum Resources (MEMPR) in conjunction with the Geological Survey of Canada (GSC) under a "Letter of Understanding" for a cooperative project.


E.H.W. Hornbrook and P.W.B. Friske directed and coordinated GSC activities. W.M. Johnson directed the MEMPR activities. Contracts were let to the following companies for sample collection, preparation and analysis and were managed by staff of the GSC and MEMPR.


The 2006 re-analysis was done in cooperation from the Dr. Peter Fiske, Head of the Applied Geochmistry Unit, Geological Survey of Canada, Ottawa.  Stephen Day, Martin McCurdy and Rick McNeil of the Unit are especially thanked for helping to retrieve the archived sediment samples and inserting quality control standards.


COLLECTION: Hi-Tec Resource Management Ltd., Vancouver, B.C.
A. Boronowski (MEMPR) 
PREPARATION: Golder Associates, Ottawa, Ont.
J.J. Lynch (GSC)

Barringer Magenta Ltd., Rexdale, Ont. (Stream Sediments)
Barringer Magenta Ltd., Calagary, Alb. (Stream Waters)
J.J. Lynch (GSC)

2006 Re-analysis: ACME Analytical Laboratories Ltd., Vancouver, BC