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Josephine G. Boerngen

Publications and source records attributed to Josephine G. Boerngen.

5 recordsLinked to original sources
USGS1981

Chemical analyses of selected agricultural soils of Missouri

This report contains a compilation of chemical data for samples of the plow zone of agricultural soils that were collected in 1970 from each of the 114 counties of the State of Missouri. Most of the principal taxonomic soil types that occur in each county are represented by the 10 samples per county that were collected. There are numerous examples of soils that were developed from each of the several parent-material types in the State. Each soil sample is a composite of several channel samples collected throughout a field from a depth 0-15cm. Soil material that passed a 2mm sieve was ground in a ceramic mill to -100 mesh and then analyzed for total concentrations of 70 elements. The methods of analysis and the lower limits of determination for each element are given in table 1. Most methods were described by Miesch (1976); delayed neutron counting for uranium and thorium was described by Millard (1976). The limits of determination for the methods did not always encompass the natural range of element concentrations in some samples, thus the elements may be classed into three groups: never detected, rarely detected, and frequently detected.

Missouri↗
USGS1978

Overburden chemistry and mineralogy at Hanging Woman Creek, Big Horn County, Montana, and recommendations for sampling at similar sites

Cored overburden rock of the Fort Union Formation at the Hanging Woman Creek potential coal mine site was classified in hand specimen on the basis of color and grain size into 3 types: sandstone. siltstone-plus-shale, and dark shale. The samples were analyzed for bulk chemistry and mineralogy. In general the samples of sandstone contain the lowest concentrations of elements of environmental concern (arsenic, beryllium, mercury. molybdenum, selenium and sulfur), and samples of the dark shale contain the highest. Comparison of samples within each rock type shows that chemical composition does not change systematically across the study site (a distance of 5 km), and almost as much information about overburden chemistry could have been obtained from a single hole drilled anywhere on the site. Overburden data from other sites in the region show that rocks at the Hanging Woman Creek site are chemically similar to those of the region as a whole, which suggests that the rock chemistry at other sites in the region could also be estimated from a low-density drilling and sampling pattern.

Montana↗