BEEDE: RECONNAISSANCE IN THE BLUE VALLEY. 193 



Stratum. Total. 



SoutJ) Fork Section. ft. in. ft. in. 



L Covered slope • • • • ^-^ ITo—Q 



3 Apparently layers of grayish limestone, on top of first little ion r 



hill ^~^" ^"^^^^ 



2. Indurated, yellowish, calcareous shales, forming yellowish 



and olive limestones, three layers about five feet apart. 

 Prodiictus nebrascensis, AmhoeceJia jilanoconve.ra, 

 and other imperfectly preserved fossils 15 112— b 



1. Shaly limestone, upper part of which is a massive yellowish 



Hmestone, weathering to a dirty gray. It contains Fusu- 



Ihni and many small fragments of fossils. The lower and ^ 



more shaly portion is not very fossiliferous T— 9/— b 



0. Yellowish shale 8—0 90—6 



9, Brown, porous, fossiliferous limestone containing abundant 



Pleurophorus fiuhvuneatus 0—10 8^— b 



8. Yellow and olive indurated shales, very fossiliferous in the 



lower portion 2o— 81—8 



7. Gray argillaceous limestone 0—8 56—8 



6. Shales, not well exposed, mostly olive or yellowish 15-0 56-0 



5 Hard, gray, fossiliferous limestone, weathering brown, 8 



inches to 1-0 41-0 



4. Olive, clayey or slightly sandy shales, about. 5-0 40-0 



3. Covered slope, from creek bank to section in road 33-0 3a— 



2. Gray, clayey limestone, in creek bed 0—6 2—0 



1. Variegated arenaceous shale, in creek bed 1—6 1—6 



Nos. 1 and 2 may have sunken from their original position, 

 though they appear undisturbed. 



COTTONWOOD FORMATION. 



The Cottonwood Falls limestone together with the superja- 

 cent shales form the uppermost portion of the Coal Measures. 

 In this region the limestone is well developed, and quarried 

 wherever it outcrops. It has the characteristic appearance here, 

 being a whitish or buff-gray limestone, appearing white from a 

 distance, filled, in the upper portion, with Fusulhia secalica or 

 the cavities from which they have been dissolved. Chert con- 

 cretions are often prominent in the upper portion. The over- 

 lying shale, however, seems to be thinner here than to the 

 southward across the Kansas river. They average a trifle over 

 two feet thick in this region, being scarcely two feet in thick- 

 ness at the Hawk quarry, at Beattie. The chief quarries are 

 located at Barrett, Bigelow, Florena, Manhattan, and Beattie. 

 At Frankfort, the quarries are located on the tops of the hills 

 southeast of the city. There is very little soil above the lime- 

 stone, and it is split into large blocks of flagging; the lower 

 portion of the upper layer is used for this purpose and the rest 

 is used for building purposes. 



As early as 1858 Mr. Henry Englemann noted this rock, 



""iufV^mUSi 



