Information Circular IC-33

AGC/AGS Series information-circulars
Number Series IC-33
Title Rare Earth Elements in the Cason Shale of Northern Arkansas: A Geochemical Reconnaissance
Author (s) A.E. Grosz, A.L. Meier and B.F. Clardy
Date 1995
General Description

This report presents rare earth element analyses of two sets of samples collected from the Lower Silurian-Upper Ordovician Cason Shale of Independence and Izard Counties in north Arkansas.

It includes:

  • Location map of the sample sites
  • Table of location coordinates, thicknesses samples, and sample descriptions
  • Table of spectrographic data of 1969 samples
  • Table of inductively coupled mass spectrometry (ICP-MS) data for 1987 samples
  • Table of lanthanide content of average crustal shale, average marine phosphorite, and average Cason phosphorite
  • Table of lanthanides in the average crustal shale, average marine phosphorite, average Cason phosphorite, and in samples collected in 1987
  • Graph comparing the lanthanide content of the average crustal shale, average marine phosphorite, and average Cason phosphorite sample
  • Graph comparing the lanthanide content of some phosphorites to the average Cason phosphorite
  • Table comparing lanthanide content and composition in some phosphorites elsewhere in the world and the average Cason phosphorite

*Includes: 13 pages, 3 figures, 6 tables

Availability Yes. Paper copy.
Price $5.00 plus shipping
Shipping and handling Contact Sales Office at (501) 296-1877, for shipping and handling charges.
Online Version

Download pdf PDF (1.78 MB)

Contact Information

Arkansas Geological Survey
3815 West Roosevelt Road
Little Rock, AR 72204
(501) 296-1877 or (501) 296-1878

Record