A new depositional model for sand-rich loess on the Buckley Flats outwash plain, northwestern Lower Michigan

Nyland, K.E., R.J. Schaetzl, A. Ignatov, and B.A. Miller. A new depositional model for sand-rich loess on the Buckley Flats outwash plain, northwestern Lower Michigan. Aeolian Research, in press. doi: 10.1016/j.aeolia.2017.05.005. Continue reading “A new depositional model for sand-rich loess on the Buckley Flats outwash plain, northwestern Lower Michigan”

Surficial Geology of Iowa

This raster is a highly detailed (delineations made at the 1:15,840 scale) map of geologic materials at the surface, covering the entire state of Iowa. The map is based on the interpretations of the US Soil Survey, which regularly needs to assess the soil parent material in their mapping activities. The raster was generated from the USDA-NRCS gSSURGO spatial database (10 m resolution). The attributes were extracted from the NRCS official soil series descriptions (OSD), but at times some additional interpretation was needed based on typical soil profile properties and spatial relationships with better-defined soil series. Because of the common relationship between surficial geology and topography, digital elevation models or derived hillshades from the USGS would be complementary to this data set.

The zip file includes two ArcGIS layer files. One to provide a detailed legend and the other for a more generalized legend.

[wpdm_package id=’555′]

 

References

Miller, B.A. and C.L. Burras. 2015. Comparison of surficial geology maps based on soil survey and in depth geological survey. Soil Horizons 56(1). doi:10.2136/sh14-05-0005.

Soil Survey Staff. 2014. Official Soil Series Descriptions (OSD). United States Department of Agriculture, Natural Resources Conservation Service. https://soilseries.sc.egov.usda.gov/osdname.asp

Soil Survey Staff. 2014. Gridded Soil Survey Geographic (gSSURGO). United States Department of Agriculture, Natural Resources Conservation Service. http://datagateway.nrcs.usda.gov

Physiography of the Des Moines Lobe

DML_physiographyThis GIS package contains a pair of spatial data sets that have been generated for the purpose of studying the physiography of the Des Moines Lobe landform region. One is a surficial geology map of the Des Moines Lobe and surrounding areas. This raster was generated from the USDA-NRCS gSSURGO spatial database. The attributes were extracted from the NRCS official soil series descriptions (OSD), but at times some additional interpretation was needed based on typical soil profile properties and spatial relationships with better-defined soil series. The other data set delineates and divides the Des Moines Lobe by physiographic regions. These regions are based on major moraines denoting surfaces of notably different age as well as important changes in surficial geology and topography. Because of the close relationship between these maps and topography, digital elevation models from the USGS would be complementary to these data sets.

[wpdm_package id=’557′]

 

References

Miller, B.A., C.L. Burras, W.G. Crumpton. 2008. Using soil surveys to map Quaternary parent materials and landforms across the Des Moines Lobe of Iowa and Minnesota. Soil Survey Horizons 49(4):91-95. doi:10.2136/sh2008.4.0091

Soil Survey Staff. 2014. Official Soil Series Descriptions (OSD). United States Department of Agriculture, Natural Resources Conservation Service. https://soilseries.sc.egov.usda.gov/osdname.asp

Soil Survey Staff. 2014. Gridded Soil Survey Geographic (gSSURGO). United States Department of Agriculture, Natural Resources Conservation Service. http://datagateway.nrcs.usda.gov

Using Soil Surveys to Delineate Quaternary Parent Materials and Landforms (2010 Binghamton Geomorphology Symposium)

[embeddoc url=”http://glsi.agron.iastate.edu/wp-content/uploads/2017/11/Using-Soil-Surveys-to-Map-Quaternary-Parent-Materials.pdf” download=”all” height=”380px”]

Thin, pedoturbated, and locally sourced loess in the western Upper Peninsula of Michigan

Luehmann, M.D., R.J. Schaetzl, B.A. Miller, and M.E. Bigsby. 2012. Thin, pedoturbated, and locally sourced loess in the western Upper Peninsula of Michigan. Aeolian Research 8:85-100. doi:10.1016/j.aeolia.2012.11.003. Continue reading “Thin, pedoturbated, and locally sourced loess in the western Upper Peninsula of Michigan”

Using soil surveys to map Quaternary parent materials and landforms

Miller, B.A., C.L. Burras, and W.G. Crumpton. 2008. Using soil surveys to map Quaternary parent materials and landforms across the Des Moines Lobe of Iowa and Minnesota. Soil Survey Horizons 49(4):91-95. Continue reading “Using soil surveys to map Quaternary parent materials and landforms”