BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol. 14, pp. 191-200 May 15, 1903 



STRATIGRAPHIC RELATIONS OF THE RED BEDS TO THE 

 CARBONIFEROUS AND PERMIAN IN NORTHERN TEXAS* 



BY GEORGP: I. ADAMS 



{Read before the Society December SO, 1902^ 

 CONTENTS 



Page 



Red beds of eastern Oklahoma 191 



Results of Cummins's investigations 192 



Reconnaissance in northern Texas 1 92 



AgQ of the Red beds 196 



Obsolete terms 198 



Relationships of Red beds of Texas, Oklahoma, Indian territory, and Kansas. 198 



Carboniferous and Permian and their relations 198 



Lithologic divisions of the Permian and Carboniferous 199 



Red Beds of Eastern Oklahoma 



In June, 1901, the writer made a reconnaissance from Kansas into 

 Oklahoma, for the purpose of studying the relations of the limestones of 

 the Carboniferous and Permian of Kansas to the shales and sandstones 

 known as the Red beds. The results of this trip were briefly summarized 

 in the American Journal of Science,^ under the title '' The Carboniferous 

 and Permian age of the Red beds of eastern Oklahoma from stratigraphic 

 evidence." As there stated, it was found that the limestones which are 

 conspicuous in the Kansas section thin southward, and gradually dis- 

 appear, so that south of the Arkansas river in Indian territory and 

 Oklahoma the section consists of shales and sandstones. The transition 

 in the character of the formations is accompanied in the upper part of 

 the section by a change to a maroon or red color. The approximate 

 limit of the red color in this region is, accordingly, a line diagonal to 

 the strike of the formations. The portion of the Red beds in strike with 

 the Carboniferous limestones is therefore of Carboniferous age, and the 



*Published by permission of the Director of the U. S. Geological Survey. 

 fVol. xii, p. 383. 



XXVII— BuT.T,. Geoi,. Soc. Am., Vol. 14, 1002 (191) 



