WVGES Trace Elements in West Virginia Coals

Click Here To Go To Trace Elements Framed Home Page Cautionary Notes

In an effort to incorporate as much information as possible into these pages, all available trace element data have been represented in the statistical analyses, stratigraphic column presentations and geographic distribution maps on this web site.  The inclusion of some of these data may impart a bias in the information presented.

Examples where bias may occur include:

Presentation of some of these data on the stratigraphic and the summary statistics pages may result in outlier values that misrepresent actual values for these particular coal beds, and should be used with caution.  As more coal samples are collected and analyzed the problems presented by non-representative coals and single samples will be minimized.