172 KANSAS CITY REVIEW OF SCIENCE. 



GEOLOGY- 



GEOLOGICAL NOTES ON A PART OF SOUTHEAST KANSAS. 



BY PROF. G. C. BROADHEAD. 



We find well exposed, below lolaat Humboldt in Allen County, about twen- 

 ty feet of a whitish or light gray limestone, often cellular, with the cells ferrugin- 

 ous stained; it also often shows numerous facets of limpid calcspar. A similar 

 rock occupies the bank of the Neosho River at Neosho Falls, also cropping out 

 low in the hills at Chanute and is also found at Galesburg in Neosho County. 

 At Galesburg we find a succession of strata, including a few feet of rough ash- 

 gray limestone on hill-top, then twenty feet of calcareous shales and thin rough 

 layers of limestone containing Athyris, Sutbiilita, Ptoducius splendens, P. pratttn- 

 iafius, Bryozoa, etc. Below this we find beds of pure whitish and gray limestone, 

 ferruginous tinged and containing Bryozoa, Spiriferlinmtus , etc., and with much 

 crystallized calcite. This last limestone I regard as equivalent to the whitish 

 limestone of Humboldt, and from its associated beds I would, in the absence of 

 better evidence to the contrary, refer it to the age of a similar limestone very 

 well exposed on the hill tops a few miles south of Ft. Scott and named by Prof. 

 Swallow in his Geological Section of Southeastern Kansas, as the " Pawnee Lime- 

 stone." We would also recommend a comparison of this limestone with another 

 known limestone of Bates County, Missouri, occurring there less than twenty 

 feet below the Mulberry coal, and described in Mo. Geol. Rep. 1874. 



The occurrence of this limestone at lola, Humboldt, Chanute and Galesburg 

 would indicate a southerly dip. From lola there is also a regular northern and 

 western dip. 



A half mile south of Galesburg we find twenty-five feet of sandstone and 

 shales reaching to the bed of the creek. The connection of these with the Gales- 

 burg limestones was not seen and I was disposed to assign the sandstone to a 

 lower horizon. But it may be possible that it is higher in the series and have a 

 southern dip which has brought it into its present position. No local dip was 

 observed, but if there is, it is then the equivalent of the Thayer flagstones. It is 

 flaggy at both places 



Sandstones do occur about forty feet below as well as thirty-five feet above 

 the white limestone. At the railroad quarry, two miles north of Chanute, we find 

 on the hill-top a bluish gray limestone. The sandstone below shows an outcrop 

 of twenty-three feet including layers of good building stone. Three miles east 

 and across the Neosho River the sandstone extends to the hill-top, and at the 

 base of the hill we find the white limestone. There must, therefore, be about 

 fifty feet of this sandstone in this vicinity. At the head of Chetopah Creek, half 



