Till Ontario 1985

Till sampling survey, NTS 41H/1,8,9, 31E/4,5,13, Muskoka area, Ontario, 1985.  


Geological Survey of Canada, Terrain Sciences Division

Survey Description

More than 200 samples (mostly till but also glaciofluvial sand and gravels and glaciolacustrine silty clay) collected in 1985 in the Muskoka area, Ontario. The data are published in GSC Open File 1792. This OF has been superseded by GSC Open File 3175 which is a digital compilation of data from OFs 1792, 947 and part of 2274. The data from OF 1792 have also been released as part of a big Ontario-Quebec summary and interpretation in GSC Bulletin 463.

Data Description: Paper report; data files on diskette (OF 3175 only).

Quantities Analysed: <0.002 mm fraction by AAS after HNO3-HCl leach for 12 elements, by fluorometric method for U and by colorimetric method for As (OFs 1792 and 3175).

Geochem Plots Available: Proportional symbol maps showing dispersal of elements and carbonate (OF 3175).

Other Analyses: Grain-size (<2 mm fraction); carbonate (<0.063 mm by LECO); pebble lithologies (OF 3175 only).



Publication History

Kettles, I.M. (1988). Reconnaissance geochemical data for till and other surficial sediments, Muskoka region, Ontario: Applications to acid rain research and mineral exploration. Geological Survey of Canada Open File 1792.

Kettles, I.M., Shilts, W.W. (1994). Composition of glacial sediments in Canadian Shield terrane, southeastern Ontario and southwestern Quebec: applications to acid rain research and mineral exploration. Geological Survey of Canada Bulletin 463.

Kettles, I.M., Shilts, W.W. (1996). Geochemical and lithological composition of surficial sediments, southeastern Ontario. Geological Survey of Canada Open File 3175.


Project History

1980-1988 Frontenac Arch, southeastern Ontario and Muskoka area, Ontario till sampling surveys carried out in 1980-1985.
  A program of systematic overburden sampling was initiated on the Frontenac Arch and adjacent areas of southeastern Ontario in 1980. It was extended to the Muskoka, Ontario region in 1984. The project was designed to quantify regional variation in drift composition in order to provide baseline data for use in assessing the sensitivity of the terrain to the effects of acid rain. Much of the information obtained from the study can also be used as an aid to mineral exploration in the area. The data were published in GSC Open Files 947 (Frontenac Arch, southeastern Ontario) and 1792 (Muskoka). Both open files have been superseded by GSC Open File 3175 (data are digital) which also includes data from part of 2274. The data from OFs 947 and 1792 are also published as part of a big Ontario-Quebec summary and interpretation in GSC Bulletin 463.



Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude

44.5º

45.5º -80.5º -79.5º