and the Kansas Sections. 137 



General Correlations. 



If the conclusions readied above are correct it leads at once 

 to the correlation of the Kansas and Guadalupian sections. If 

 we use tlie Whitehorse sandstone, probably the equivalent of 

 the beds in contact with the Guadalupian limestone near 

 Carlsbad, as a conunon basis of correlation of the two sections, 

 we attain the result shown in the accompanying diagram. 



Fig. 2. 





Isa 



Fig. 2. Gypsum bhilf six miles south of Lakewood, New Mexico. Fossils 

 from near top of bhiff just below the dark spot in the center of picture. 



Disregarding their actual faunal relationships and comparing 

 them as to their thickness, the strata of the two sections com- 

 pare as follows, the figures of the Guadalupian rocks being 

 approximations : 



In southern New Mexico we have some 4,500 feet of the 

 Guadalupian series composed of 2,100 feet of Capitan and 

 overlying limestones and 2,400 feet of the Delaware Mountain 

 formation composed of limestones and sandstones overlying 

 5,000 feet of Hueco limestones. Beginning at the same hori- 

 zon in Kansas, we have the remainder of the red beds, the lighter 

 Permian and the Pennsylvanian, aggregating abont 4,500 feet 

 of strata, composed of limestone shales and sandstone. So far 

 as mere thickness is concerned it leaves the base of the Dela- 

 ware Mountain formation about on the level with the base of 

 the Cherokee shales (as exhibited in Kansas). The horizon of 

 the base of the Delaware Mountain formation in the Kansas 

 section interpreted upon its fauna, or actnal time equivalency, 



