OF ARKANSAS. 49 
in the State of Wiscon- 
sin, except that the beds 
of magnesian limestone 
SECTION OF MARION COUNTY—Conrimuep. 
ig @ |s|are thinner-bedded and 
a & ‘ 
pols es —-|#Flless massive, and hence, 
Z| 1 [Red and variegated limestone or marble do not appear in as bold 
_ rock. D : . 
ode [ cliffs in Arkansas ‘as on 
5 ee 
193 +e > the upper Mississippi. 
L 
wey ; The fossils in the lime- 
ia {Whi inital li tone or marble , 
| x | os Pe Reet ens stone, at an elevation of 
mE: 161 feet above Sugar 
194} |_| leet k 
‘Suse oaf creek, are, mostly, 
_ [st casts and imperfect im- 
7 | mere siliceous limestone. bedded impressions, so 
sL 
rare that even the genera 
194) |_[st 16 |can hardly be made out; 
but, so far as they are 
1881 [gost coarse-grained sandstone. 
recognizable, they, as 
178) ss | ss 8 : : 
ML ML well as the lithological 
Thin-bedded magnesian limestone. 
character of the strata, 
indicate the geological 
169 re i 
L White fossiliferous limestone, close-tex- 
161 ured, brittle. 
Pe Birds-eye structured limestone, 
horizon of these rocks as 
159 5 |cotemporaneous with the 
L . . 
4 +1 * Ifagnesian limestone. . “lower magnesian lime- 
147 . 
SL | sL stone and interstratified 
Tita] Btltecous tnecatone: sandstones” of northern 
L a . . 
= a 10, |Wisconsin, the “ calcifer- 
“Les | ous sandrock” of the New 
“es | ¢s Calcareous sandstone. York system, and the 
ie | tel MW |« 2nd magnesian lime- 
ML ML 
ME stone and sandstone, and 
‘ML ML . nesian limestone” 
~~ Baff, checkered magnesian limestone. 3d magnes ; 
of the Geological Report 
ML ML ¥ 
ga) | a 35, [on south-western Mis- 
saree Light-colored limestone with chert, so- sour. 
__&R _| called ‘cotton rock.” 
71 CR CR 12 
67 mL |Grey rough-weathering mag. limestone.| 4 
eremeata 
Liou 
_1 1 light-colored limestone in beds from 6 
Lu | L]| to 8 inches in thickness. 
ag | 1! at 
