Ig2t] 
eastern portions of the United States. 
DACHNOWSKI—PEAT DEPOSITS 
81 
The first coarsely fibrous 
layers of Carex-Phragmites peat in the Canton deposit, and espe- 
cially the middle forest bed of the Kent deposit, certainly have a 
suggestive feature 
of resemblance. 
Among land-laid 
peat deposits, the 
basal forest bed in 
the Kankakee 
Marsh near South 
Bend, Indiana, ap- 
pears to indicate a 
corresponding time 
relationship, the 
climatic conditions 
of which favored 
-forest associations 
more distinctly 
southern in range. 
Layers of coarse, 
fibrous peat mate- 
rial and of forest 
peat seem to offer 
the evidence of a 
prolonged warm 
Period, during 
which migration of 
deciduous shrub 
and forest vegeta- 
tion units might 
readily have taken 
Place to areas 
considerably more 
64 
Feet in 
depth 
— 
Se, 
ALnN 
Sphagnum peat 
with tamarack 
stumps 
Carex peat 
_ Macerated peat 
Carex peat 
Predo ntly 
conifer forest 
peat 
Carex peat 
Macerated peat 
(in part col- 
Marly phase 
Marl 
Clay 
FI o.—Cross-section showing structure of peat 
deposit i near Kent, Portage County, Ohio; elevation 1028 
feet a.t.; location of sounding indicated on map (fig. 9). 
northward than they are at the present time (14). 
From these 
facts there appears some support for the suggestion that the 
probable range in temperature and precipitation as well as the 
duration of this warm period made it possible for many trees 
