Abstract

Introduction

About 10 miles west of Ottawa, Kansas, near the southeast corner of see. 15, T. 17 S., R. 18 E., where Coal Creek undercuts a bluff about 50 yards below the bridge and about 100 yards north of the road corner, angular fragments of coal, some of them as much as five feet long and more than six inches thick, (figure 1) are embedded in the lower part of a massive sandstone believed to be the basal sandstone of the Lawrence formation 2 (Pennsylvanian system, Douglas group). Besides the coal fragments, the basal part of the sandstone contains lenses of conglomerate bearing limestone pebbles and, in places, shows hard, concretionlike masses of cemented sandstone two to five feet or more in width. The basal sandstone rests on a gray-blue clay shale, probably a member of the Stranger formation, which, at the exposure examined, is considerably crumpled (figure 2).

Character . . .

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