Survey Metadata

In October 1997, samples were collected at 21 sites within a 50 km radius of the Trail lead-zinc smelter, British Columbia.  A-, B- and C-horizon soils developed on till were sampled.  Sites are located along two transects extending north and northeast from the point source.  Sand or sandy diamicton (till) was the main mineral soil sampled along the northern transect; diamicton (till) makes up a high proportion of the samples from the northeast transect, although sand was collected at some sites in lower elevations.  Because humus was generally poorly developed in the area, the organic-rich upper part of the soil horizon (A-horizon) was also collected.  A description of the work can be found in Geological Survey of Canada Current Research 1999-D.