The sample is relatively radioactive, giving counts two four times background over 0-225 feet. It was collected from the Huron Member of the Ohio Shale near Morehead, Kentucky. Concentrations were determined by cooperating laboratories using a variety of analytical methods. If the results from 5 or more laboratories and 3 or more independent methods are in statistical agreement, concentrations are recommended.
Concentrations listed are for as-received material.
One standard deviation s.d. This cost includes all shipping and handling charges using normal mail delivery. Urgent requests for RMs should be initiated by FAX or e-mail. If required, overnight delivery is available with these charges added to the final bill.