Dossiers publics PNRG
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Dossier Public 0507
Previous OF publication(s):
Province / Territory: Ontario
Funding Source: Federal and Provincial
Year of Collection: 1977
# Lake sites: 922
# Stream sites:
Survey Area: 18025 km²
NTS Sheet(s): 052A, 052H
The regional lake sediment and water survey for the Thunder Bay area, northern Ontario (NTS 52A and south half of 52H) was conducted during the summer of 1977.
This report presents analytical and statistical data for 13 variables in lake sediments and three variables (U, F, pH) in lake waters from 922 sample sites, collected at an average density of one sample per19.6 km².
Analytical Data
variable | method | detection limit | year of analysis |
---|---|---|---|
Arsenic | COL | 1 ppm | 1977 |
Cobalt | AAS | 2 ppm | 1977 |
Copper | AAS | 2 ppm | 1977 |
Iron | AAS | 0.02 pct | 1977 |
Lead | AAS | 2 ppm | 1977 |
Loss-on-ignition | GRAV | 1 pct | 1977 |
Manganese | AAS | 5 ppm | 1977 |
Mercury | CV-AAS | 10 ppb | 1977 |
Molybdenum | AAS | 2 ppm | 1977 |
Nickel | AAS | 2 ppm | 1977 |
Silver | AAS | 0.2 ppm | 1977 |
Uranium | NADNC | 0.2 ppm | 1977 |
Zinc | AAS | 2 ppm | 1977 |
variable | method | detection limit | year of analysis |
---|---|---|---|
Fluorine | ISE | 20 ppb | 1977 |
Uranium | FT | 0.01 ppb | 1977 |
pH | GCM | 1977 |
- Acknowledgements:
-
The reconnaissance survey was undertaken by the Geological Survey of Canada in conjunction with the Ontario Ministry of Natural Resources under the terms of the Canada - Ontario Agreement on a Uranium Reconnaissance Program.
Fisheries and Environment Canada provided funds for the determination of mercury.
E.H.W. Hornbrook directed the Geological Survey of Canada activities.
- Collection:
-
Contractor and supervisor details for sample collection Category Responsible Party Contractor: Marshall Macklin Monaghan, Toronto, Ontario Supervisor: E.H.W. Hornbrook , W.B. Coker (GSC) - Preparation:
-
Contractor and supervisor details for sample preparation Category Responsible Party Contractor: Golder Associates, Ottawa, Ontario Supervisor: J.J. Lynch (GSC) - Analysis:
-
Contractor and supervisor details for sample preparation Category Responsible Party Contractor: Chemex Labs Limited, Vancouver, British Columbia Barringer Magenta Ltd., Toronto, Ontario Atomic Energy of Canada Ltd., Ottawa, Ontario Supervisor: J.J. Lynch (GSC)
- Other information:
-
Sediments were reanalyzed for additional elements in 1989. Data were released in Open File 2179.
- Date de modification