Survey Metadata

Soil

Minnesota, Ontario

1985

Soil sampling survey, NTS 52C, D, northwestern Ontario and northern Minnesota, 1985-1987.





Location map

(requires an Internet connection)

Survey Description


Samples of B-horizon soil were collected between 1985 and 1987 in northwestern Ontario (Canada) and northern Minnesota (U.S.A.).  Along accessible roads, samples were collected at approximately 1.6 km intervals or at sites were B-horizon was available.  In swampy areas sample coverage is poor.  In areas with some swamps or overburden thickness greater than 30 m, sample spacing was approximately 1.6 km along N-S roads and 3.2 km along E-W roads.  A total of 1799 sites were sampled.  At each site the soil profile was exposed and the sample was collected from the upper 0.3 m of the first soil horizon that contained visible oxides of ferric iron (B-horizon).  Data for 1672 sites are published in United States Geological Survey Open File Report 92-0721.

Data Description:

Paper report and data diskette.

Quantities Analysed:

Splits of the <0.25 mm fraction were treated with a water leach, and enzyme leach and enzyme plus ascorbic acid leach and analyzed by ICP-MS for 23 elements and ICP-AES for 13 elements.

Geochem Maps Available:

None.

Publication History

Index Publication
1 Riddle, G.O., Meier, A.L., Motooka, J.M., Erlich, O., Clark, J.R., Saunders, J.A., Fey, D., Sparks, T. (1992). Analytical results for B-horizon soil samples, from the International Falls and Roseau 1ox2o quadrangles, Minnesota/ Ontario. United States Geological Survey Open File Report 92-0721, 13 p. (includes diskette). ( more)

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
48° 49° -96° -92°

The geographic extent of the survey is defined by the following polygons:

  • Covers NTS 52C (International Falls) and 52D (Roseau) in northwestern Ontario, Canada and northern Minnesota, United States.  The western part of its northern border runs through Lake of the Woods.  The western part of its southern border runs through the northern part of Lower Red Lake.

Keywords

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