|Previous slide||Back to first slide||View graphic version|
Bar charts show results of the two-factor sampling plan for gravel layers in South Platte gravel:
1-Results can be summarized by gravel layer (as above) or by site. Results can also be specified for each layer at each site.
2-Particle size classes are shown by colored bars. "-" and "+" refer to less than or greater than stated size, respectively.
3-The charts above show that the basal gravel is coarsest and the middle gravel is finest.
4-If layer thickness and width are known, the quantity of product of a given particle size can be estimated for each layer.
This page is <URL: http://pubs.usgs.gov/of/1998/ofr-98-0332/tsld017.htm>
Site Maintainers: Randy Schumann and Gene Ellis
For more information about this report contact: David A. Lindsey
Last updated 10 Jan 2013