WAS THERE PENNSYLVANIAN-PERMIAN GLACIA- 



TION IN THE ARBUCKLE AND WICHITA 



MOUNTAINS OF OKLAHOMA? 



SAMUEL WEIDMAN 

 University of Oklahoma, Norman, Oklahoma 



INTRODUCTION 



At intervals since August, 1920, the writer has been investigating 

 the problem of glaciation, in Pennsylvanian and Permian times, of 

 the Arbuckle and the Wichita Mountains, and on several occasions 

 since December, 1920, brief reports of progress, illustrated with 

 various photographs and specimens of the supposed glacial evidence, 

 have been presented to scientific societies/ 



It was intended to continue the investigation during the present 

 summer (1923) but the Governor's veto of the appropriation for 

 the Oklahoma Geological Survey, which suppHed funds for 

 the field work, temporarily at least, postpones the completion of the 

 researches proposed. The following paper, therefore, though some- 

 what more complete than any heretofore presented, is only a pre- 

 hminary statement of the data bearing on the question of Pennsyl- 

 vanian-Permian glaciation. 



Although the data accumulated and described are wholly the 

 work of the writer, it is important to refer to the earlier work of two 

 other geologists, namely, J. A. Taff in 1905 and W. H. Twenhofel 

 in 191 7, who have suggested the probable glacial origin of certain 

 deposits in regions outlying some distance from, but nevertheless 

 of the same general Carboniferous age as, the features herewith 

 described in the Arbuckle and Wichita Mountain areas. Their 

 work will be referred to more fully later as they give a certain meas- 

 ure of support to the interpretations expressed in this paper. 



' "Evidence of Glaciation in the Arbuckle Region," read before Geological Society 

 of America, December, 1921; see Abstract, Bull. G.S.A., Vol. XXXII, p. 91. Read 

 before Am. Assoc. Petrol. Geol., March 17, 192 1. Read before Oklahoma Academy 

 Science, February, 1921; see Abstract, Okla. Acad. Sci. Vol. II. (1922), pp. 73- 



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