NGR stream sediment and water survey, NTS 85E, F, K, L, 95H, I, J, Horn Plateau area, Northwest Territories, 2005.
(requires an Internet connection)
In July 2005, helicopter-supported stream sediment and water sampling was carried out in the Horn Plateau area, Northwest Territories. The survey area coincided with NWT’s Edéhzíe candidate protected area. A total of 357 sites were sampled, covering approximately 19,600 km2 of the roughly 25,000 km2 candidate area. The sampling density in the southeast is lower than the rest of the area. The rest of the candidate protected area was sampled in an earlier survey, completed in 2003 and released in Geological Survey of Canada Open File 4674.
The data from both 2003 and 2005 are published in Geological Survey of Canada Open File 5478.
This survey was carried out using National Geochemical Reconnaissance (NGR) protocols.
NGR stream sediment, water and HMC
At each site a pre-labelled Kraft paper bag was two-thirds filled with silt or fine sand collected from the active stream channel. In practice, the silt sample was collected after water samples were collected but before a bulk sediment sample. Handfuls of silt from various points in the active stream channel were collected while gradually moving upstream. A moss mat sample was sometimes collected when a suitable sample was scarce or absent.
At every site, waters were sampled mid-channel, from flowing water where possible. At sites where sediments were taken for heavy mineral concentration (approximately every second site) two water samples were generally collected. Samples were collected in 125 mL Nalgene bottles. The bottles were rinsed two or three times before collecting the sample.
Material for heavy mineral concentrates was collected from the upstream points of mid-channel bars, at a single point where possible. Material was wet-sieved through a 12-mesh stainless steel sieve into a 5-gallon plastic pail lined with a heavy-duty plastic bag until a sample weight of 10-15 kg was attained.
|1||Huntley, D., Little, E., Duk-Rodkin, A., Sandeman, H. (2006). Drift geochemistry of south-central MacKenzie Valley watershed: new hypotheses resulting from reconnaissance drift and stream sediment sampling surveys in the NWT (provisional analysis and implications for mineral, energy and groundwater resources). In 34th Annual Yellowknife Geoscience Forum Abstracts Volume, A.L. Jones, Irwin, D. (Comps.), Northwest Territories Geoscience Office, Yellowknife, NT, p. 88. (more)|
|2||Little, E., Huntley, D., Duk-Rodkin, A., Sandeman, H., Sidwell, C., Arnold, H. (2006). New hypotheses resulting from reconnaissance drift and stream sediment sampling surveys in the vicinity of the Horn Plateau, NWT. In 34th Annual Yellowknife Geoscience Forum Abstracts Volume, A.L. Jones, Irwin, D. (Comps.), Northwest Territories Geoscience Office, Yellowknife, NT, p. 88. (more)|
|3||Day, S.J.A., Lariviere, J.M.L., McNeil, R.J., Friske, P.W.B., Cairns, S.R., McCurdy, M.W., Wilson, R.S. (2007). Regional stream sediment and water geochemical data, Horn Plateau area, Northwest Territories (parts of NTS 85D, 85F, 85L, 95H, 95I and 95J) including analytical, mineralogical and kimberlite indicator mineral data. Geological Survey of Canada, Open File 5478. (more)|
|1||2003-2007||NGR/NTGO stream sediment and water surveys, Northwest Territories, 2003-2005 (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 95H/13 (Martin River) in Northwest Territories. It is located approximately 15 km northwest of Fort Simpson.
Covers parts of NTS 85E (Mills Lake), 85F (Falaise Lake), 85K (Rae), 85L (Willow Lake), 95H (Fort Simpson), 95I (Bulmer Lake) and 95J (Camsell Bend) in the Horn Plateau area, Northwest Territories. It is located approximately 30 km east of Fort Simpson.
- Date modified: