Survey Metadata

Surface water, Lake sediment

Quebec

1994

Lake sediment and water sampling, NTS 21E/14, Lac Aylmer area, Quebec, 1994.





Location map

(requires an Internet connection)



Survey Description


During the summer of 1994, lake sediment and water sampling was carried out in Lac Aylmer and its drainage basin, southern Quebec.  Bottom sediments were collected at 128 sites in Lac Aylmer, at 10 sites in Lac St. François and at 3-4 sites each in Lac Elgin, Lac des Isles, Lac Maskinongé, Lac Équerre, Lac à la Barbue and Baie Sauvage of Lac St. François.

Surface and bottom water samples were collected in Lac Aylmer and in adjacent lakes and inflowing streams.  Three water samples were collected at each site.

Subbottom acoustic profiling of Lac Aylmer and Lac St. François was carried out to survey the bathymetry, bottom sediment facies and thickness of sediments.

Some of the data are published as proportional dot maps in Geological Survey of Canada Open File 3011.  Data lists can be found in S. Phaneuf’s M.Sc. Thesis (Carleton University, 1996).

Sampling Procedure

Using a Petite Ponar sampler, grab samples of the upper 10-15 cm of bottom sediment were collected.  Surface lake water samples were collected approximately 20 cm below the air/water interface.  Bottom water samples were collected at 1-2 m above the sediment/water interface.

The sonar surveys were carried out using a Raytheon RTT-1000 subbottom acoustic profiling system at frequencies of 200 KHz and 7 KHz.

Publication History

Index Publication
1 Phaneuf, S., Shilts, W.W. (1994). Geochemistry of lake sediments and water, Lac Aylmer, Quebec. Geological Survey of Canada, Open File 3011. ( more)
2 Phaneuf, S. (1996). Natural and anthropogenic effects on the geochemistry of lake sediments and waters of Lac Aylmer, Quebec. M.Sc. thesis, Department of Earth Sciences, Carleton University, Ottawa, Ontario, Canada, 147 p. ( more)

Project History

Index Year Project
1 1994 Lac Aylmer, Quebec lake sediment and water survey, 1994 ( more)

Downloadable Files

Index Description Size (bytes)
1
GSC Open File 3011 sheet 1 of 2 (PDF) ( FileID=653 download )
Sheet 1 contains the text for the open file and maps of element concentrations in lake sediment.  This sheet is poster sized (~80”x36”).
945264
2
GSC Open File 3011 sheet 2 of 2 (PDF) ( FileID=654 download )
Sheet 2 contains a geology map for the area as well as maps showing element concentrations for both lake sediment and till displayed on the bedrock map.  This sheet is poster sized (~72”x36”).
1954610
3
GSC Open File 3011 (PostScript files) ( FileID=655 download )
This archive contains the two original PostScript files used to produce GSC Open File 3011.
3416669

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
45.73° 46° -71.42° -71.07°

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

  • Covers part of NTS 21E/14 (Disraeli) in the Lac Aylmer area, southern Quebec.  It is bound to the north by latitude 46°.

Keywords


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