Survey Metadata
Soil, Till
Manitoba
1990
Soil and till sampling, NTS 63K/16 and 63J/12, 13, Snow Lake area, west-central Manitoba, 1990-1991.
Location map
(requires an Internet connection)
Primary Publications (see below for full list)
| Index | Publication |
|---|---|
| 1 | Nielsen, E., Gauthier, M.S. (2020). Till-geochemistry data for the Snow Lake area, northwest Manitoba (NTS 63K16, 63J12, 13). Manitoba Agriculture and Resource Development, Manitoba Geological Survey, Data Repository Item DRI2020022, Microsoft® Excel® file. ( more) |
Survey Description
As part of EXTECH-I, regional till sampling was carried out in 1990 in the Snow Lake area, west-central Manitoba. A total of 130 samples (114 C horizon; 16 B horizon) were collected from hand-dug pits at 108 sites. Sampling was restricted to areas of easy access along roads, power lines and lake shores between File Lake and Morton Lake to the west and the Osborne Lake mine to the east. The density of sample sites is variable. In 1991, the sampling was expanded to include 159 till samples from 145 sites as well as 142 humus samples.
The following reports were published:
| Manitoba Geological Survey (MGS) Publications | Comments |
|
Report of Activities, 1990 Report of Activities 1991 |
summary of the work |
| Data Repository Item DRI 2020022 | digital data |
|
OF2020-5 OF2020-6 |
the data are part of two digital compilations |
| Geological Survey of Canada OF 3277 | the <2 µm ICP-AES and AAS data were originally released as part of this open file |
| GSC Bulletin 426 | interpretation |
Data Description:
Paper report, no data lists. Digital data are now available (2020).
Quantities Analysed:
<0.002 mm fraction of C-horizon till for 10 elements by AAS after aqua regia leach; for Hg and As by hydride generation AAS; for 31 elements by ICP-ES after aqua regia leach; for 7 elements by sequential extraction techniques.
<0.63 mm fraction of C-horizon till for Au + 34 elements by INAA; for 31 elements by ICP-ES following aqua regia leach.
<0.177 mm fraction of humus for 31 elements by ICP-ES after aqua regia; the soluble organic fraction of humus for 7 elements after Na4P2O7 leach; the insoluble inorganic residue for 7 elements by sequential extraction techniques.
Geochem Maps Available:
Proportional dot plots showing the distribution of Cu, As, and Zn in selected fractions for selected analyses.
Other Analyses:
HMC for visible gold point counts.
Publication History
| Index | Publication |
|---|---|
| 1 | Gobert, G. (1990). Till geochemistry of the Snow Lake area (NTS 63K/16, 63J/13, 63J/12). In Manitoba Energy and Mines, Minerals Division, Report of Activities 1990, p. 72-73. ( more) |
| 2 | Gobert, G., Nielsen, E. (1991). Till geochemistry of the Snow Lake-File Lake area (NTS 63K/16, 63J/13). In Manitoba Energy and Mines, Minerals Division, Report of Activities 1991, p. 47-48. ( more) |
| 3 | Kaszycki, C.A., Nielsen, E., Gobert, G. (1996). Surficial geochemistry and response to volcanic-hosted massive sulphide mineralization in the Snow Lake region. In EXTECH I: a multidisciplinary approach to massive sulphide research in the Rusty Lake-Snow Lake greenstone belts, Manitoba, G.F. Bonham-Carter, A.G. Galley, G.E.M. Hall (ed.). Geological Survey of Canada, Bulletin 426, p. 139-154. ( more) |
| 4 | McMartin, I., Henderson, P.J., Nielsen, E., Campbell, J.E. (1996). Surficial geology, till and humus composition across the Shield margin, north-central Manitoba and Saskatchewan: geospatial analysis of a glaciated environment. Geological Survey of Canada, Open File 3277. ( more) |
| 5 | Gauthier, M.S. (2020). Manitoba till-matrix geochemistry compilation 3: clay (<2 μm) size-fraction by atomic absorption spectrometry or inductively coupled plasma–emission spectrometry after aqua-regia digestion. Manitoba Agriculture and Resource Development, Manitoba Geological Survey, Open File OF2020-5, 5 p. ( more) |
| 6 | Gauthier, M.S. (2020). Manitoba till-matrix geochemistry compilation 4: visible gold grains in the heavy mineral (<2 mm; –10 mesh) size-fraction. Manitoba Agriculture and Resource Development, Manitoba Geological Survey, Open File OF2020-6, 3 p. ( more) |
| 7 | Nielsen, E., Gauthier, M.S. (2020). Till-geochemistry data for the Snow Lake area, northwest Manitoba (NTS 63K16, 63J12, 13). Manitoba Agriculture and Resource Development, Manitoba Geological Survey, Data Repository Item DRI2020022, Microsoft® Excel® file. ( more) |
Project History
Geographic Extent
| Minimum Latitude | Maximum Latitude | Minimum Longitude | Maximum Longitude |
|---|---|---|---|
| 54.65° | 55° | -100.49° | -99.66° |
The geographic extent of the survey is defined by the following polygons:
-
Covers parts of NTS 63K/16 (File Lake), 63J/13 (Herb Lake) and a small part of 63J/12 (Buzz Lake) in the Snow Lake area, west central Manitoba. It extends south to Hwy 39 at the south end of Wekusko Lake and extends just west of the western edge of File Lake.
Keywords
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