OKLAHOMA ACADEMY OF SCIENCE 95 



Both the irregularity with which tlie conglomerate was laid 

 down, as well as the mode of its formation would prevent its being 

 used successfully as a horizon in locating structures. 



XVII. NOTES ON THE AREA LYING BETWEEN THE 

 NORTHWESTERN EDGE OF THE ARBUCKLE 

 MOUNTAINS AND THE WLIDHORSE 

 SANDSTONE 

 E. R. Brockway and H. J. Owens 

 From the Oklahoma Geological Survey. 

 Introduction 

 Due to some differences of several men regarding the age of 

 the rocks in this area, the following repot t was made after careful 

 study and several field trips. Valuable aid in working this out 

 was received from Dr. C. E. Decker. 



Seveial articles have been written concerning the Arbuckle 

 mountains region in general bat no detailed report has ever been 

 made on this particular area. 



Location 

 The area described herein includes all or part of the following: 

 Sees. 1 to 7 inclusive, T. IS., R.2W. 

 Sees. 24 to 29 inclusive, T. IN., R.2W. 

 Sees. 31 to 36 inclusive, T. IN., R.2W. 

 Sees. 13, and 19 to 36 inclusive, T. IN., R.IW. 

 Sees. 2 to 8 inclusive, T. IS., R.IW. 

 Carter, Garvin, and Murray counties, Oklahoma. 



Topography 

 The region is quite rough with elevations ranging from 800 

 to 1500 feet above sea. Drainage is to the east to the Washita river 

 through WiWhorse creek and its tributaries, Eight Mile and 

 Masse creeks. 



G'ology 

 The most common rocks in this area are red, blue, yellow, 

 brown, and purple shales ; and red, yellow, brown, salt and pepper, 

 and black sandstones. The evidence seems to indicate that these 

 are Permian (as Permian is now considered), either included in or 

 equivalent to a central portion of the Enid formation. Adjacent 

 to the mountains lies a series of nonfossiliferous limestones and 

 conglomerates, varying in color from a lavender to white, gray and 

 brown. These are only found close to the mountain mass and thin 

 out away from it, running into the Permian shales and interbedding 

 with them, showing them to be Permian also. 



The limestone is massive, without cleavage, bedding planes, or 



