50 ON THE GEOLOGY AND NATURAL HISTORY 
General section of the Rocks of Kansas Valley from the Cretaceous down, so as to include oes: of the Upper 
Coal measures. 
Feet. 
1. Red, brown, and yellowish, rather coarse-grained sandstone, often obliquely laminated, and containing 
many ferruginous concretions ; also, fossil wood and many leaves of dicotyledonous trees, some of which 
belong to existing genera, and others to genera peculiar to the Cretaceous epoch. Locality, summit of 
Smoky hills, . : : 60 
Whitish, very fine-grained ra ere Wei ks: nidirhda iy bluish idl aid baliabtenda meg 
” 
Locality same as preceding, . ; 15 
oo 
. Long, gentle slope, with occasional Siew of ae ian red, bikes and whitish, more or oe sacesie 
clays, with thin beds of sandstone. Locality same as preceding, and extending down at places nearly 
or quite to the bluffs of Smoky Hill river ; thickness about ? . 200 
. Red sandstone, with some layers of hard, light gray calcareous, Pi ae both containing ot tabu con- 
eretions. Locality, bluffs of Smoky Hill river, five or six miles above Grand Saline river. a. 
local, thickness seen about. = : 15 
ie 
on 
- Bluish, red, light yellow, and gray aay and soft iti se sometimes a few thin fis of mag- 
nesian limestone. In many places these clays have been traversed in every direction by cracks, into 
which calcareous and argillaceous matter haye found their way, and subsequently become consolidated so 
as to form thin seams of impure yellowish limestone, which cross and intersect each other at every angle. 
The red clays are usually less distinctly laminated, contain more arenaceous matter, and often show 
ripple-marks on the surfaces. Locality, Bluffs st Smoky Hill river, above the mouth of the Grand 
Saline, : 60 
. Light gray, sal ctdcred, and Yea slays sometimes arenaceous, sid — ous by obs filled with 
j=r) 
calcareous matter as in the bed above,—alternating with thin layers and seams of gypsum. Locality, 
near mouth of Smoky Hill river, . , ‘ « 40 
. Rather compact amorphous white gypsum, with near the base dincnipneed ae tak. Sioned do. 
Locality same as last, . : : 4} to 5 
. Alternations of ash-colored, more or — arenaceous sha with thin beds and seams ote gypsum nail ; 
towards lower part, thin of claystone, and at some _. soft magnesian limestone. Locality same 
as last,. ‘ A . 50 
“J 
ce 
9. Rough Hee Se mass, spol of fccsoels of magnesian scale and acai’, ny sometimes 
a few quartz pebbles, cemented by calcareous and arenaceous matter; variable in the thickness and 
probably local. Locality, south side of Smoky Hill river, ten or twelve miles below Solomon’s Sork, seen 
- Bluish, light gray, and red laminated clays, with seams and beds of yellowish magnesian limestone, con- 
taining Monotis Hawni, Myalina perattenuata, Pleurophorus? subcuneata, Edmondia? Calhount, 
Pecten undt., and Spiriyera near 8S. subtilita ; also Nautilus eccentricus, Bakevellia parva, Leda sub- 
pad 
< 
et 
io) 
scitula, Axinus rotundatus, and undetermined species of Bellerophon, Murchisonia, &e. Locality, near 
Smoky Hill river, on high country south of Fort Riley, as well as on Cottonwood creek,  . . 90 
- Light grayish and yellow magnesian limestone, in layers and beds, sometimes alternating with bluish and 
other colored clays, and containing Solemya, a Myalina near M. squamosa, Pleurophorus? subcuneata, 
Bakevellia parva, Pecten undt., and a Euomphalus near E. rugosus ; also, a Spirigera allied to S. sub- 
tilita, but more gibbous, Orthisina wmbraculum ?, O. Shumardiana, &c. Locality, summit of the hills, 
near Fort Riley and above there ; also seen on Cottonwood creek, pete : 5. 28 to 85 
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food 
