Soil, Till Ontario 1992

Till and soil sampling, NTS 41I, northern Ontario, 1992.  


Ontario Ministry of Northern Development and Mines, Ontario Geological Survey

Survey Description

Approximately 450 humus, B-horizon soil and C-horizon till samples were collected in 1992 along the north and east ranges of the Sudbury basin in northern Ontario. The data are published in Ontario Geological Survey Open File Report 6033.

Data Description: Paper report; digital data released as MRD-61 (Miscellaneous Release-Data 61).

Quantities Analysed: <0.177 mm fraction of humus, <0.063 mm fraction of B-horizon soil and C-horizon till by ICP-AES after aqua regia and also a phase selective leach for 30 elements, by hydride generation ICP-ES after aqua regia and co-precipitation with La(OH)3 for As, Sb, Bi, Se, T, and Ge, and by fire assay-ICP-MS for Au, Pt, and Pd. Also selective extraction of "soluble organic" and amorphous Fe oxyhydroxide phases using various digestions and analytical techniques. Birch twigs after ashing by INAA for 35 elements and by GF-AAS for Au, Pt, and Pd.

Geochem Plots Available: Proportional symbol maps show regional and detailed dispersal of elements in humus, B-horizon and C-horizon till and the dispersal of pebble lithologies and selected heavy minerals in till.

Other Analyses: Pebble lithologies; heavy mineral concentrate for gold grain counts and point counts.



Publication History

Bajc, A.F., Hall, G.E.M. (2000). Geochemical response of surficial media, North and East ranges, Sudbury Basin. Ontario Geological Survey Open File Report 6033, 265 p.


Project History

1992-2000 Sudbury basin soil and till sampling survey carried out in 1992.
  A multi-year study of Quaternary geology and drift geochemistry along the north and east ranges of the Sudbury basin was initiated in 1992. The Sudbury mining camp was chosen because of its world famous Ni-Cu sulphide ores and precious metals. The study was undertaken to evaluate the effectiveness of surficial geochemistry for mineral exploration in the Sudbury mining camp; to provide baseline geochemical data for environmental applications; and to provide practical information on the geochemical behaviour of Ni, Cu and platinum group elements (PGEs) in the surficial environment. The data are published in Ontario Geological Survey Open File Report 6033.



Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude

46.45º

46.8º -81.55º -80.8º