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 0405
Previous OF publication(s):
Province / Territory: Ontario
Funding Source: Federal
Year of Collection: 1976
# Lake sites: 580
# Stream sites: 0
Survey Area: 13400 km²
NTS Sheet(s): 031C
The regional lake survey for central Ontario (NTS 31C) was conducted during the summer of 1976.
This report presents analytical and statistical data for 13 variables in lake sediments from 580 sample sites collected at an average density of one sample per 23.1 km².
Analytical Data
| variable | method | detection limit | year of analysis |
|---|---|---|---|
| Arsenic | COL | 1 ppm | 1976 |
| Cobalt | AAS | 2 ppm | 1976 |
| Copper | AAS | 2 ppm | 1976 |
| Iron | AAS | 0.02 pct | 1976 |
| Lead | AAS | 2 ppm | 1976 |
| Loss-on-ignition | GRAV | 1 pct | 1976 |
| Manganese | AAS | 5 ppm | 1976 |
| Mercury | CV-AAS | 10 ppb | 1976 |
| Molybdenum | AAS | 2 ppm | 1976 |
| Nickel | AAS | 2 ppm | 1976 |
| Silver | AAS | 0.2 ppm | 1976 |
| Uranium | NADNC | 0.2 ppm | 1976 |
| Zinc | AAS | 2 ppm | 1976 |
- Acknowledgements:
-
The Geological Survey of Canada provided financial support ('A' Base Funds).
E.H.W. Hornbrook directed Geological Survey of Canada activities.
Contracts for field work, sample preparation and sample analysis were let, supervised and monitored by the Geochemistry Section, Geological Survey of Canada.
- Collection:
-
Contractor and supervisor details for sample collection Category Responsible Party Contractor: GSC personnel Supervisor: E.H.W. Hornbrook - Preparation:
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Contractor and supervisor details for sample preparation Category Responsible Party Contractor: Golder Associates, Ottawa, Ontario Supervisor: J.J. Lynch - Analysis:
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Contractor and supervisor details for sample preparation Category Responsible Party Contractor: Chemex Labs Limited, Vancouver, British Columbia Atomic Energy of Canada Limited, Ottawa, Ontario Supervisor: J.J. Lynch
- Other information:
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Waters were collected in 1982 and sediment was reanalyzed for additional elements in 1982. Data were released in Open File 899.
- Date modified: