NGR Open Files
Archived information
The database from which the NGR Open File metadata was extracted is unilingual and is not being actively maintained. It contains information that is not readily available elsewhere.
Open File 1639
Previous OF publication(s):
Province / Territory: Ontario
Funding Source: Federal and Provincial
Year of Collection: 1987
# Lake sites: 1451
# Stream sites:
Survey Area: 21900 km²
NTS Sheet(s): 041I, 041H
The regional lake sediment and water survey for central Ontario (NTS 41I and part of 41H) was conducted during the summer of 1987.
This report presents analytical and statistical data for 18 variables in lake sediments from 1,451 sample sites, collected at an average density of one sample per 15.1 km². This report includes values for uranium, fluoride, pH, alkalinity, calcium and magnesium in waters.
Analytical Data
| variable | method | detection limit | year of analysis |
|---|---|---|---|
| Antimony | HY-AAS | 0.2 ppm | 1987 |
| Arsenic | HY-AAS | 1 ppm | 1987 |
| Cadmium | AAS | 0.2 ppm | 1987 |
| Cobalt | AAS | 2 ppm | 1987 |
| Copper | AAS | 2 ppm | 1987 |
| Fluorine | ISE | 20 ppm | 1987 |
| Gold | FA-NA | 1 ppb | 1987 |
| Iron | AAS | 0.02 pct | 1987 |
| Lead | AAS | 2 ppm | 1987 |
| Loss-on-ignition | GRAV | 1 pct | 1987 |
| Manganese | AAS | 5 ppm | 1987 |
| Mercury | CV-AAS | 10 ppb | 1987 |
| Molybdenum | AAS | 2 ppm | 1987 |
| Nickel | AAS | 2 ppm | 1987 |
| Silver | AAS | 0.2 ppm | 1987 |
| Uranium | NADNC | 0.5 ppm | 1987 |
| Vanadium | AAS | 5 ppm | 1987 |
| Zinc | AAS | 2 ppm | 1987 |
| variable | method | detection limit | year of analysis |
|---|---|---|---|
| Calcium | ICP | 0.5 ppm | 1987 |
| Fluoride | ISE | 20 ppb | 1987 |
| Magnesium | ICP | 0.05 ppm | 1987 |
| Total Alkalinity | TIT | 1 ppm | 1987 |
| Uranium | LIF | 0.05 ppb | 1987 |
| pH | GCM | 1987 |
- Acknowledgements:
-
The reconnaissance survey was undertaken by the Geological Survey of Canada in conjunction with the Ontario Department of Mines under the Canada - Ontario Mineral Development Agreement (1985 - 1990).
E.H.W. Hornbrook directed the survey.
P.W.B. Friske coordinated the operational activities of contract and Geological Survey of Canada staff.
- Collection:
-
Contractor and supervisor details for sample collection Category Responsible Party Contractor: SIAL Geophysique, Montreal, Quebec Supervisor: E.H.W. Hornbrook, P.W.B. Friske (GSC) - Preparation:
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Contractor and supervisor details for sample preparation Category Responsible Party Contractor: Golder Associates, Ottawa, Ontario Supervisor: J.J. Lynch (GSC) - Analysis:
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Contractor and supervisor details for sample preparation Category Responsible Party Contractor: Bondar-Clegg & Company, Ottawa, Ontario Chemex Labs Limited, Vancouver, British Columbia Supervisor: J.J. Lynch (GSC)
- Other information:
- Date modified: