Survey Metadata

Till, Indicator minerals



Till sampling, NTS 56J, K, O, P, Committee Bay area, central Nunavut, 2001-2002.

Location map

(requires an Internet connection)

Survey Description

More than 1000 till samples from frost boils were collected in the summers of 2001 and 2002 in the Committee Bay area, central Nunavut.  In 2001, target areas (zones with potential for mineralization) in NTS 56K, were sampled at 2.5 to 5 km along traverses perpendicular to ice-movement.  At each site, a 3 kg till sample was collected for geochemical analyses, grain size analysis and carbonate content.  A 10 kg till sample was also collected at each site for gold grains counts, pebble lithology and indicator mineral analyses.  Outside target areas, a reconnaissance-scale approach was used and only a 3 kg sample was collected every 5 to 15 km.  Within NTS 56J and 56O, an area with little prior geological data, till sample sites were selected to optimize spatial coverage in 2001.  Partial datasets are published in Geological Survey of Canada Open File 4277.

In 2002, follow-up work was conducted in target areas in 56J/9-16 and 56O/1-8 identified from the 2001 sampling program.  That same year, sampling was carried out in NTS 56P with the goal of optimizing spatial coverage and covering the entire supracrustal belt.  The data from 2001 and 2002 are published in GSC Open File 4493.


Sample Size NTS 56K NTS 56J NTS 56O NTS 56P Total
2001 Field Season:
3 kg 193 60 56   309
10 kg 126 40 43   213
2002 Field Season:
3 kg 20 84 61 139 304
10 kg   69 37 100 206
3 kg 213 144 117 139 613
10 kg 126 109 80 100 419


Kimberlite indicator mineral data are published in GSC Open File 4602.

Data Description:

CD-ROM including digital data

Quantities Analysed:

<0.002 mm and <0.063 mm for an element suite by ICP-AES after aqua regia digestion; <0.063 mm for suites of elements by INAA and XRF; <0.063 mm for Au, Pt and Pd by fire assay ICP-AES; <2 mm HMC by fire-assay ICP-AES.

Geochem Maps Available:


Other Analyses:

Carbonate content on <0.063 mm, by Chittick; pebble lithology (4-8 mm); grain size (<2 mm); Gold grain counts.

Publication History

Index Publication
1 McMartin, I., Little, E.C., Ferbey, T., Ozyer, C.A., and Utting, D.J. (2002). Drift prospecting across the Committee Bay greenstone belt, central mainland Nunavut (NTS 56K, 56J-north and 56O-south), Geological Survey of Canada, Open File 4277. (more)
2 McMartin, I., Little, E.D., Berbey, T., Ozyer, C.A, Utting, D.J. (2003). Ice-flow history and drift prospecting in the Committee Bay Belt, central Nunavut; results from the Targeted Geoscience Initiative. Geological Survey of Canada, Current Research 2003-C4, 11 p. (more)
3 McMartin, I., Utting, D.J., Little, E.C., Ozyer, C.A. (2003). Complete results from the Committee Bay Drift Prospecting Survey, central Nunavut. Geological Survey of Canada, Open File 4493, 1 CD-ROM. (more)
4 Little, E.C. (2004). Results of kimberlite indicator mineral analyses on till and esker samples from the Committee Bay project: Laughland Lake (56K), Walker Lake (56J north), Arrowsmith River (56O south) and Ellice Hills (56P). Geological Survey of Canada, Open File 4602. (more)

Project History

Index Year Project
1 2000-2003 Committee Bay Multidisciplinary Geoscience Project, Quaternary component, Nunavut, 2000-2003 (more)

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
66° 68° -94° -88°

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

  • Covers parts of NTS 56J, K, O, P in the Committee Bay area, central Nunavut.


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