REPORT ON FIELD WORK IN OEOLOGY. 



119 



vale, usually but a few feet below the surface. As the grade rises to 

 the north the Erie limestone is again seen for two or more miles 

 along the road to the south of Morehead, after which it passes out 

 of sight and is seen no more along the line of the road. What is 

 assumed to be the same rock is e:cposed in the river east of Chanute. 

 This latter is known to be the Erie limestone. The dotted lines in 

 the drawing (figure 2, plate V. ) show how well this accords with the 

 facts of topography. 



Above the Erie limestone at Morehead a heavy deposit of sandstone 

 and shale sets in. The grade is quite heavy from Morehead to 

 Thayer, with an elevation of 148 feet in about eight miles. In a few 

 places thin seams of coal are met with, heavy enough to be worked 

 locally to some extent. It is quite probable that the Thayer coal 

 beds belong here, although lying some miles to the west. The sand- 

 stone is in heavy beds in some places, so that they furnish good 

 building material. A number of fine buildings in Thayer are con- 

 structed entirely of them. The shales are of the ordinary kind, with 

 no special characteristics distinguishing them from other shales. 



Passing northward to Chanute we find a new limestone system on 

 the hill-tops back of the town, which proves to be the lola limestone, 

 number 4 of the Neosho section. It does not appear along the rail- 

 road until after the Neosho river is crossed, the whole of the distance 

 from Morehead being occupied by sandstone and shale. But a short 

 distance across the river the limestone is seen, and continues very 

 prominently until after Humboldt is passed. As this limestone has 

 been described at length in connection with the Neosho river section, 

 it may be dismissed here without further notice. 



North of lola about five miles a new limestone formation occurs at 

 the little station of Carlyle. This is approximately seventy-five feet 

 vertica'lly above the lola limestone. It undoubtedly corresponds to 

 number 5 of the Neosho river section, with which it agrees in every 

 respect. In fact, the distance from Carlyle to the line of the Neosho 

 section above lola is so short that there is no room for doubt on the 

 subject. The rock is exposed in great abundance by the road side 

 just north of Carlyle, and consists of a relatively thin system com- 

 posed of different layers, the whole aggregating from eight to ten feet 

 in thickness at this place. Thre rock is a compact, buff colored 

 limestone sufficiently sound to be very durable, and therefore 

 serviceable for ballast and structural purposes in which thin layers of 

 rock may be used. 



North of Carlyle the road bed rises rapidly towards Colony, so that 

 the Carlyle limestone soon disappears beneath the surface. From 

 this point to the vicinity of Welda no more limestone is exposed 



