Soil, Surface water, Stream sediment
Multi-media sampling, including soil, NTS 32D/5, 12, 42A/8, 9, 10, 42H/2, northeastern Ontario, 1994.
(requires an Internet connection)
In 1994, four areas in northeastern Ontario were selected for study: the Shoot Gold Zone, in Taylor Township; the South, Central and West Breccia Gold Zones in Hislop township; the Holt-McDermott and Worvest Gold Deposits in Holloway Township; and the Patton Base Metal Occurrence in Stimson Township.
Water samples were collected from flowing streams, springs and stagnant pools. In the absence of surface water, a shallow sump was dug and allowed to fill up with porewater contained in the peat layer. Shallow groundwater samples were also collected. A 1” diameter PVC drive point piezometer was pushed down to the interface between peat and clay. After approximately 24 hours, the water was sampled using a polyethylene hose and Waterra pump.
Samples of organic-rich materials in contact with stream water were also collected, usually bank material overhanging the creek. Organic sediment at the bottom of the creek was the preferred sample medium if present.
In the peaty area, a surface peat sample was collected from a depth of about 30 cm. Using a peat auger, a peat sample was also obtained from just above the peat/clay interface at sites where a shallow groundwater sample was collected.
One or more soils traverses were sampled in each area on lines oriented perpendicular to the strike of mineralization. At each site, relatively organic-rich surface soil (A horizon) was collected at a depth of about 5 to 10 cm. Organic-poor soil (B horizon) was also sampled at a depth of 30 to 75 cm. On the Hislop property, C horizon soils were collected at a depth of 50 to 100 cm. The study is described in Ontario Geological Survey Open File Report 5927.
Paper report, no data lists.
Water samples by ICP-MS for 58 elements; by hydride generation/ICP-MS for As, Sb, Se and Hg; by ICP-ES for major cations; by ion chromatography for major anions.
<0.15 mm fraction of organic stream material by aqua regia/ICP-ES for 32 elements; by hydride generation/ICP-ES for As, Sb and Se; by INAA for 35 elements.
<0.15 mm fraction of A horizon samples and <0.25 mm fraction of sand samples analysed by enzyme leach/ICP-MS for 61 elements; by aqua regia/ICP-ES for 32 elements; by hydride generation/ICP-ES for As, Sb and Se; by INAA for 35 elements.
Geochem Maps Available:
Proportional dot maps of dispersion of selected elements in soil at the Shoot Zone; element frequency distributions for water and B-horizon soil; soils profiles.
LOI on organic stream material and soil samples.
|1||Jackson, R.G., Stephenson, D.M. (1994). Project Unit 94-21. Geochemical method development for the detection of blind mineralization in clay belts. In Summary of Field Work and Other Activities 1994. Ontario Geological Survey, Miscellaneous Paper 163, p. 268-269. (more)|
|2||Jackson, R.G. (1995). The application of water and soil geochemistry to detect blind mineralization in areas of thick overburden. Ontario Geological Survey Open File Report 5927. (more)|
|3||Bajc, A.F. (1998). A comparative analysis of enzyme leach and mobile metal ion selective extractions; case studies from glaciated terrain, northern Ontario. Journal of Geochemical Exploration, v. 61, p. 113-148. (more)|
|1||1994-1995||Northeastern Ontario till sampling survey, 1994 (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 42A/10 (Porquis Junction) in Taylor Township, northeastern Ontario. It includes the Shoot Zone gold deposit. It is located just north of Wabbler Lake an approximately 1.5 km east of the Driftwood River.
Covers parts of NTS 42A/9 (Matheson) and 42A/8 (Ramone) in Hislop Township, northeastern Ontario. It includes the Hislop gold deposits. It is located approximately 10 km southeast of Matheson and just north of the community of Holtyre. Highway 572 runs north-south through the eastern part of the study area and the Pike River flows through the northwest portion of the area.
Covers parts of NTS 32D/12 (Lightning River) and 32D/5 (Magusi River) near the Holt-McDermott mill site, Holloway Township, northeastern Ontario. It is located south of Highway 101 and the Mattawasaga River runs east-west through the northern part of the study area.
Covers part of NTS 42H/2 (Abitibi), near the Patton base metal occurrence in Stimson Township, northeastern Ontario. It is located approximately 2 km west of Newberry Lake and Paton Creek runs north-south through the western part of the study area.
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