AbstractsEarth & Environmental Science

"In this study an attempt has been made to determine the usefulness of heavy minerals for correlation of formations over a limited area, in the heart of the Ozark uplift in southeast Missouri. The Roubidoux formation, already definitely correlated by other means, has been rather systematically sampled throughout the area, and the heavy minerals determined to ascertain their dependability for correlation purposes. Several samples from other horizons have been studied for comparison with the Roubidoux. Also, within the area studied there are numerous isolated patches of sandstone, the horizons of which have not been definitely determined. Samples from a few such patches have been included in the study in order to determine whether it was possible to correlate them definitely by such means. No effort has been made to systematically sample and study these since the chief abject was to obtain data upon known formations" – Introduction, p. 5.