As a part of the cooperative mapping project between the Kentucky Geological Survey and the U. S. Geological Survey, a study of Cretaceous and Tertiary spores and pollen assemblages has been underaken to aid in distinguishing formations and to facilitate surface and subsurface correlation of strata.
Report completed from July 1, 1968 to November 1, 1969 are included in this report; others will be placed in open file as they are completed and released for general use.