Survey Metadata

Soil, Surface water, Stream sediment

Newfoundland and Labrador

1995

Soil, stream water and stream sediment survey, NTS 13K/10, 14, 15, central Labrador, 1995.





Location map

(requires an Internet connection)



Survey Description


In 1995, soil, stream water and stream sediment samples were collected in the Florence Lake greenstone belt area, central Labrador.

Approximately 680 soil samples were collected in four areas: Stomach Lake, Florence Lake, Knee Lake and Ballet Pond.  Where possible, soils were collected along lines oriented at approximately right angles to glacial flow.  Generally, soils samples were collected from the B-horizon at 200 m intervals along lines spaced 1 km apart.  Additional high density sampling was done in the vicinity of the Baikie showing (Fe-Ni-Cu±PGE) to provide orientation data.  Soil samples were collected along lines oriented approximately at right angles to glacial flow.  Samples closest to the showing were collected at 12 m intervals along lines spaces 50 m apart; more distant sites were spaced at 25 m intervals along lines spaced 100 m apart.

Approximately 170 stream water samples were collected in the Florence Lake greenstone belt, including in the vicinity of the Baikie showing.  Samples were collected in purified 250 ml Nalgene bottles particularly in areas unsuitable for soil sampling due to lake of till cover or extreme topographic relief.

Approximately 123 stream sediment samples were collected in the Stomach Lake, Florence Lake, Knee Lake, Ballet Pond and Ugjoktok Bay areas.

The data for all sample media are published in Newfoundland and Labrador Department of Mines and Energy Open File 013K/0225.

Soil samples from the Baikie Grid were later analysed for Pt and Pd and these data are published in Newfoundland and Labrador Department of Mines and Energy Open File LAB/1362.

Data Description:

Paper report with data diskette.  Report and data now also available on CD.

Quantities Analysed:

<0.180 mm fraction of soil and stream sediments by INAA for an extensive element suite; by ICP-ES after HF-HClO4-HCl digestion for a large suite of elements; by AAS after HF-HClO4-HCl digestion for Cr and Mo; by AAS after HNO3-HCl digestion for base metals; by AAS for Ag after HNO3 digestion.

After filtration (0.45 μm) and HNO3 acidification in field, stream waters analyzed by ICP-ES for Ca, Fe, K, Mg, Mn, Na, Si, SO4; by ICP ultrasonic nebulizer for Al, Ba, Be, Co, Cr, Cu, Li, Mo, Ni, P, Sr, Ti, Y, Zn.

<0.180 mm fraction of Baikie Grid soil samples by FA-ICP-MS after HNO3-HCl digestion for Pt, Pd (OF LAB/1362).

Geochem Maps Available:

Histograms of soil, stream sediment and stream water data (Open File 13K/0225).

Proportional symbol maps showing distribution of selected elements in soil.  Soil histograms (OF LAB/1362).

Other Analyses:

pH and conductivity of stream water.

Publication History

Index Publication
1 McConnell, J.W. (1996). Soil, stream-water and stream sediment geochemistry of the Florence Lake Greenstone Belt, Labrador. Newfoundland Department of Mines and Energy, Open File 013K/0225, 58 p. (more)
2 McConnell, J.W. (1997). Soil and stream geochemistry of the Florence Lake greenstone belt, Labrador. In Current Research Report, C.P.G. Pereira (ed.). Newfoundland Geological Survey 1997-1, p. 101-118. (more)

Project History

Index Year Project
1 1995-2002 Multimedia sampling, central Labrador, 1995 - 1998 (more)

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
54.7152° 55.0306° -61.2085° -60.4649°

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

  • Covers parts of NTS 13K/10 (Kaipokok River), 13K/14 (Mistinippi Lake) and 13K/15 (untitled) in the Florence Lake greenstone belt, central Labrador.  Its centre located approximately 60 km west of the town of Postville.  The Kanairiktok River runs through the southeast part of the study area.

Keywords


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