Survey Metadata

Surface water, Lake sediment



Lake sediment and water survey, NTS 74I/1, 8, 64L/4, 5, northern Saskatchewan, 1979.

Location map

(requires an Internet connection)

Survey Description

During July 1979, detailed sampling of surface lake waters and centre-bottom sediments was carried out in the NEA-IAEA Test Area, northern Saskatchewan.  Lakes not previously sampled by the Saskatchewan Geological Survey (Dunn in 1976) or the Geological Survey of Canada (GSC NGR Open File 508) were sampled.  In addition, repeat sampling of some previously sampled (1976-Dunn and /or 1977-NGR) lakes was carried out.  Approximately 500 sites in the 1200 km2 area were sampled, at a density of 1 site per 2.4 km2.  The data are published in Geological Survey of Canada Open File 779.  A summary can be found in GSC Paper 82-11.

Data Description:

Paper report with data lists.

Quantities Analysed:

<0.177 mm fraction of lake sediments analysed by AAS after HNO3-HCl digestion for Zn, Cu, Mn, Fe, Pb, Ni, Co, Mo and Ag; by colourimetric methods for As; by INAA for U.  Lake water samples were analysed for the following anions: F, Cl, PO4, NO3, SO4 by the Dionex system.  U in lake waters was analysed by laser-induced fluorometry. Forty-one waters were analyzed for an additional 27 elements by ICP-ES but only Mg, Fe, Ca, Si and Sr were detectable.

Geochem Maps Available:

Colour contour maps and three-dimensional surface plots of elements in lake water and sediments.

Other Analyses:

pH, Eh, dissolved oxygen content, temperature and conductivity of surfaces waters were measured.

Sampling Procedure

Lake sediments were obtained using a G.S.C. sampler from a Hughes 500-C turbo helicopter.  Organic-rich sediments were collected from the central-deepest part of permanent lakes and ponds.  Surface lake waters (0.5 m depth) were collected directly into 500 mL polyethylene bottles.

Publication History

Index Publication
1 Coker, W.B., Dunn, C.E. (1981). Lake water and sediment geochemistry; NEA-IAEA Athabasca Basin-Wollaston lake test area, Saskatchewan. Geological Survey of Canada, Open File 779. (more)
2 Coker, W.B., Dunn, C.E. (1982). Lake water and lake sediment geochemistry, NEA/IAEA Athabasca Test Area. In Uranium Exploration in Athabasca Basin, Saskatchewan, Canada, E.M. Cameron (ed.). Geological Survey of Canada, Paper 82-11, p.117-125. (more)
3 Mellinger, M. (1989). Multivariate patterns of field information and geochemistry in a regional lake sediment survey: the NEA/IAEA Athabasca Test Area revisited. In Statistical Applications in the Earth Sciences, F.P. Agterberg and G.F. Bonham-Carter (ed.). Geological Survey of Canada, Paper 89-9, p.357-365. (more)

Project History

Index Year Project
1 1978-1982 NEA-IAEA Test Area Program, northern Saskatchewan, 1978-1982 (more)

Downloadable Files

Index Description Size (bytes)
GISSARK file archive ( FileID=650 download)
This file is an archive of geochemical data stored in the GISS Archive (GISSARK) format, a derivative of the GISS format.  The ZIP file contains a readme file, the data, a dictionary and a user manual.  The data file names include the initials of the geologist responsible for the data; the full name is given in the file.
GISSARK file archive list of contents ( FileID=651 download)
A PDF file listing the files contained in “”.  The file also lists related publications and if a survey for the data has been created in The Canadian Database of Geochemical Surveys.

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
58.125° 58.375° -104.25° -103.5°

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

  • Covers parts of NTS 74I/1,8 and NTS 64L/4,5 in northern Saskatchewan.  This area is part of the NEA/IAEA Test Area.  It is bounded to the east by Wollaston Lake.


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