Till, Vegetation, Surface water, Lake sediment
Multi-media survey, NTS 31L/1, Algonquin Park area, Ontario, 1984.
(requires an Internet connection)
During the summer of 1984, ground investigations were initiated over the Allan Lake carbonatite, Algonquin Park, Ontario. Samples of the till overlying the carbonatite were collected along 3 transects. The till samples were taken from the C horizon of the soil profile developed on the till wherever possible, although a few samples came from the lower part of the B horizon. A series of five soil/overburden test pits were also excavated to study vertical variations in till geochemistry, lithology and soil characteristics. Leaf tissue of the dominant species, sugar maple, was also collected along two of the till transects. Lake sediments and waters were collected from the lake overlying the carbonatite. In addition, samples were taken from two additional lakes considered representative of background. The study is published in Journal of Geochemical Exploration v.30.
Paper report, no data lists, but some element ranges given.
<0.002 mm fraction of till analyzed for Cu, Pb, Zn, Mo, Co, Ni, Cr, Mn, and Fe by AAS after hot HNO3-HCl leach; U by fluorometry after a HNO3 leach. <0.063 mm fraction of till analyzed for Ba, Ni, Th, Zn, Y, Ce, La, P and S by XRF.
Ashed leaf tissue analysed for Ba, P, Sr, Co, Cu by ICP-ES.
Lake sediments analysed for Zn, Cu, Pb, Ni, Co and Ba by AAS; LOI; Sr, Ce, La, Th and U by INAA; Yb, Cr, V by ICP-ES; major and minor oxides by ICP- ES.
Geochem Maps Available:
Profiles of element concentrations in till.
|1||Ford, K.L., DiLabio, R.N.W., Rencz, A.N. (1988). Geological, geophysical and geochemical studies around the Allan Lake carbonatite, Algonquin Park, Ontario. Journal of Geochemical Exploration, v. 30, p. 99-121. (more)|
|1||1984-1988||Allan Lake Carbonatite Complex multi-media sampling, Algonquin Park, Ontario, 1984 (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 31L/1 (Brent) in the northwest corner of Fitzgerald Township in Algonquin Park, Ontario. It is located approximately 60 km west of Deep River and covers the Allan Lake carbonatite complex. It is east of Allan Lake and west of Bissett Lake.
- Date modified: