Soil, Surface water, Stream sediment
Newfoundland and Labrador
Stream sediment, stream water and soil sampling, NTS 23J/10, 15, 16, 13N/11, Labrador, 1980.
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During the summer of 1980, soil sampling was carried out in the vicinity of four base metal anomalies. Anomalies 1, 3 and 4 are in the Labrador Trough, eastern Labrador and Anomaly 8 is located southwest of Davis Inlet in eastern Labrador. A total of 361 samples were collected.
Soils samples at Anomaly 1 were collected from 100 m intervals along a 1 km line aligned perpendicular to the mapped strike of the bedrock. At Anomaly 8, soil sampling was completed over a 1 x 1.4 km grid. Lines were spaced at 200 m and samples were collected at 50 and 100 m intervals on alternate lines. At Anomalies 3 and 4, samples were collected on a 2 x 2 km grid at 50 m intervals along lines spaced 400 m apart.
A total of 137 combined sediment and water samples were collected at 250 m intervals from streams on Anomalies 1, 3 and 4. Active stream silt was preferentially collected. A 250 ml water sample was collected at each site even if no sediment was available.
The data are published in Newfoundland Department of Mines and Energy Open File LAB/0563.
Paper report with data lists.
<0.177 mm fraction analyzed for U by neutron activation and by AAS for base metals and other elements.
0.177 mm fraction of stream sediments were analyzed by AAS after an aqua regia digestion and a hot nitric leach for Cu, Pb, Zn, Co, Ni, Ag, Mn and Fe; F by ion selective electrode; Mo by AAS using a nitrous oxide acetylene flame.
Geochem Maps Available:
Data values are plotted on maps of the soil grids.
Water samples were analyzed for heavy metals using a colorimetric dithizone test and for pH.
Active stream silt was preferentially collected. A water sample (250 ml) was collected in a plastic bottle at each site.
|1||McConnell, J.W. (1981). Stream sediment, stream water and soil geochemistry associated with four base metal anomalies in Labrador. Newfoundland Department of Mines and Energy, Open File LAB/0563; 36 p. (accompanies Maps 81-19 to 81-44). (more)|
|2||McConnell, J. (1984). Reconnaissance and detailed geochemical surveys for base metals in Labrador. Newfoundland and Labrador Department of Mines and Energy, Mineral Development Division, Report 84-2, 114p. (more)|
|1||1979-1981||Base metal and uranium anomaly follow up project, central Labrador, 1979-1980 (more)|
|Minimum Latitude||Maximum Latitude||Minimum Longitude||Maximum Longitude|
The geographic extent of the survey is defined by the following polygons:
Covers part of NTS 23J/16 (Hollinger Lake) in the Newfoundland portion of the Labrador Trough. It covers a base metal anomaly known as “Anomaly 1” and lies approximately 40 km northeast of Schefferville, Quebec. It is bounded to the northeast by Martin Lake.
Covers part of NTS 23J/15 (Lac Knob) in the Newfoundland portion of the Labrador Trough. It covers a base metal anomaly known as Anomaly 3 and lies approximately 8 km northeast of Schefferville, Quebec and just southwest of Attikamagen Lake.
Covers part of NTS 23J/10 (Stakit Lake) in the Newfoundland portion of the Labrador Trough. It covers a base metal anomaly known as Anomaly 4 and lies approximately 10 km south of Schefferville, Quebec.
Covers part of NTS 13N/11 (untitled) covering a base metal anomaly known as Anomaly 8. It is located approximately 40 km southwest of Davis Inlet and 250 km north of Goose Bay.
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