Survey Metadata

NGR lake, GEM

Northwest Territories

1975

NGR lake sediment survey, NTS 75K, Northwest Territories, 1975





Location map

(requires an Internet connection)

Geological Survey of Canada, Northern Canada Division

Extended Metadata

Sample Locations    

Number of Sites: 819
Location map (kml format; requires kml viewer for display ( details) )

NTS map sheets

250K map sheets
Index Sheet Site Count Metadata PDF
1 075K 819 075K Download 075K

KML 250K index map file download
50K map sheets
Index Sheet Site Count Sheet 1 Sheet 2
Metadata PDF Metadata PDF
1 075K/01 53 075K/01 Download 075K/01    
2 075K/02 53 075K/02 Download 075K/02    
3 075K/03 52 075K/03 Download 075K/03    
4 075K/04 51 075K/04 Download 075K/04    
5 075K/05 60 075K/05 Download 075K/05    
6 075K/06 50 075K/06 Download 075K/06    
7 075K/07 52 075K/07 Download 075K/07    
8 075K/08 57 075K/08 Download 075K/08    
9 075K/09 57 075K/09 Download 075K/09    
10 075K/10 54 075K/10 Download 075K/10    
11 075K/11 50 075K/11 Download 075K/11    
12 075K/12 50 075K/12 Download 075K/12    
13 075K/13 36 075K/13 Download 075K/13    
14 075K/14 37 075K/14 Download 075K/14    
15 075K/15 53 075K/15 Download 075K/15    
16 075K/16 54 075K/16 Download 075K/16    

KML 50K index map file download
Sample Material    
Index Sample Type Sample Count Sample Hierarchy
1 NGR lake sediment 867 Null : Null : Sample : Lithosphere : Unconsolidated : Terrestrial : Fluvial : Lake sediments : Centre basin : Grab sample : NGR lake sediment
Preparation Laboratory Sample Material    
Index Field Sample Prep Lab Material # Collected # Prepared # Sent for Analysis
1 PrpID=1   NGR lake sediment grab sample <177 micron (NGR) 867 867 1834
Analytical History    
Details Index Year # Analysed Analytical Sample Bundle Spreadsheet
N
H
T
1 PkgID=134   1976 917 NGR-0010-1975-NT-LS-1 ( BdlKey=210174 more ) link arrow link arrow link arrow
Analytical Suites Table    
Details Index Sample Material # Analysed Prep Lab Material Suite Technique Decomposition
1 SuiteID=178   NGR lake sediment grab sample 917 <177 micron (NGR) Chemex (lake sediments) AAS (8 elements; air-acetylene) (vague) - … C2H2/Air Aqua regia (NGR)
Analytical Methods Table    
Index Quantity Units Det Limit # Analysed # Missing # Discarded Minimum Percentile Maximum KML
25 th 50 th 75 th
1 MethodID=2091   Zn ppm 2 917 0   20 72 94 130 820 KML map file download
2 MethodID=2092   Cu ppm 2 917 0   6 26 38 56 410 KML map file download
3 MethodID=2093   Pb ppm 2 917 0   <2 2 4 6 75 KML map file download
4 MethodID=2094   Ni ppm 2 917 0   4 13 17 23 200 KML map file download
5 MethodID=2095   Co ppm 2 917 0   <2 5 7 10 223 KML map file download
6 MethodID=2096   Ag ppm 0.2 917 0   <0.2 0.6 KML map file download
7 MethodID=2097   Mn ppm 5 917 0   40 155 250 440 32500 KML map file download
8 MethodID=2098   Fe percent 0.02 917 0   0.2 0.95 1.45 2.3 18.5 KML map file download
2 SuiteID=179   NGR lake sediment grab sample 917 <177 micron (NGR) Chemex (lake sediments) AAS (Mo; nitrous oxide-acetylene) (vague) - … C2H2/N2O Aqua Regia (sensu lato)
Analytical Methods Table    
Index Quantity Units Det Limit # Analysed # Missing # Discarded Minimum Percentile Maximum KML
25 th 50 th 75 th
1 MethodID=2116   Mo ppm 2 917 0   <2 2 3 6 37 KML map file download
3 SuiteID=180   NGR lake sediment grab sample 917 <177 micron (NGR) Chemex (lake sediments) CVAAS (Hg) (vague) - … Cold vapour atomic absorption spectroscopy Aqua Regia (sensu lato)
Analytical Methods Table    
Index Quantity Units Det Limit # Analysed # Missing # Discarded Minimum Percentile Maximum KML
25 th 50 th 75 th
1 MethodID=2118   Hg ppb 10 917 1   <10 20 40 65 220 KML map file download
4 SuiteID=181   NGR lake sediment grab sample 917 <177 micron (NGR) Chemex (lake sediments) COL (As) (vague) - … Colorimetry Unknown
Analytical Methods Table    
Index Quantity Units Det Limit # Analysed # Missing # Discarded Minimum Percentile Maximum KML
25 th 50 th 75 th
1 MethodID=2117   As ppm 1 917 0   <1 1 2 4 215 KML map file download
5 SuiteID=182   NGR lake sediment grab sample 917 <177 micron (NGR) Chemex (lake sediments) LOI (vague) - … Loss on Ignition None
Analytical Methods Table    
Index Quantity Units Det Limit # Analysed # Missing # Discarded Minimum Percentile Maximum KML
25 th 50 th 75 th
1 MethodID=2115   LOI percent 1 917 0   <1 11.9 30.6 48.2 81.3 KML map file download
2 PkgID=135   1976 917 NGR-0010-1975-NT-LS-2 ( BdlKey=210175 more ) link arrow link arrow link arrow
Analytical Suites Table    
Details Index Sample Material # Analysed Prep Lab Material Suite Technique Decomposition
1 SuiteID=183   NGR lake sediment grab sample 917 <177 micron (NGR) AECL (lake sediments) NADNC (U) (details unknown) - … Neutron activation delayed neutron counting None
Analytical Methods Table    
Index Quantity Units Det Limit # Analysed # Missing # Discarded Minimum Percentile Maximum KML
25 th 50 th 75 th
1 MethodID=1301   U ppm 0.2 917 0   0.7 4 7.3 17.6 528 KML map file download

Survey Description


Lake sediments were collected in 1975 in the area of the Nonacho Belt, Northwest Territories. The data are published in GSC Open File 326.

In 2016, the data from OF 7232 (NTS 75C, F) were republished in OF 8010 with reanalyses of samples collected in 75K (OF 326).  OF 8010 also includes the original data from OFs 324, 325 and 326.

This survey was carried out using National Geochemical Reconnaissance (NGR) protocols.

Publication History

Index Publication
1 Geological Survey of Canada (1976). Regional lake sediment geochemical reconnaissance data, Nonacho Belt, east of Great Slave Lake, N.W.T. Geological Survey of Canada, Open File 326. ( more)
2 Maurice, Y.T. (1977). Follow-up geochemical activities in the Nonacho Lake Area, District of Mackenzie. Geological Survey of Canada, Open File 489. ( more)
3 Coker, W.B., Ellwood, D.J., Maurice, Y.T. (1981). National geochemical reconnaissance, Nonacho Lake, Northwest Territories (75C, F and K). Geological Survey of Canada, Open File 741, 19 pages. ( more)
4 Maurice, Y.T. (1984). Interpretation of data from Nonacho Lake - East Arm of Great Slave Lake Region, District of MacKenzie. Geological Survey of Canada, Paper 84-12. ( more)
5 McCurdy, M.W., McNeil, R.J., Percival, J.A., Garrett, R.G. (2016). Regional lake sediment geochemical data, Nonacho Basin – East Arm of Great Slave lake region, Northwest Territories (NTS 75-C, NTS 75-F and NTS 75-K). Geological Survey of Canada, Open File 8010, 15 p. ( more)

Project History

Index Year Project
1 1975-1977 Nonacho Belt lake sediment and water surveys, 1975-1976 ( more)

Downloadable Files

Index Description Size (bytes)
1
GSC Open File 326 digital data ( FileID=1125 download )
The data are packaged as a single zip file, compatible with modern operating systems.
89567
2
Introductory text for GSC Open File 326 ( FileID=417 download )
This PDF file contains the introductory text for GSC Open File 326.  It was scanned from the original document.  The data are not included in this file.
32761
3
GAS file archive ( FileID=648 download )
This file is an archive of geochemical data stored in the Geochemical Analysis System (GAS) format.  The ZIP file contains a readme file, the data and a user manual.
6574145
4
GAS file archive list of contents ( FileID=649 download )
A PDF file listing the files contained in “gasfiles.zip”.  The file also lists related publications and if a survey for the data has been created in The Canadian Database of Geochemical Surveys.
57064
5
Diskette to accompany GSC Open File 326 ( FileID=49 download )
WARNING: the data on the diskette may have been packaged as a 16 bit self-extracting executable file, which is incompatible with 64 bit Windows computers.
116536

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
62° 63° -110° -108°

The geographic extent of the survey is defined by the following polygons:

  • Covers NTS 75K in the North West Territories.

Keywords

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