314 GEOLOGY OF OHIO. 
PROFILE SECTION THROUGH RICHLAND COUNTY. 
A—Abrupt slope to the south frequently without any Drift clay, the level rocks coming 
near to the surface, the significance of which will be more apparent after the deseription 
of the counties further south is given. 
B—Undulating ridges of Drift such as have been described above, occasional granitic 
bowlders being scattered over the whole, with frequently a thin bed of stratified sand 
and gravel at bottom. 
To account for these facts, an agency is required which shall bring from 
their home in the far north the granitic bowlders and pebbles, the Cor- 
niferous limestone, and other hard rocks intervening; shall pulverize to 
a clay the soft, argillaceous rocks; shall leave the hard rocks brought in 
‘from the north rounded and striated; shall mingle all this material in- 
timately with the debris of the friable local rocks, which are neither 
water-worn nor striated, but are in sharp, angular fragments, and leave 
the whole entirely unassorted upon the high lands in undulating ridges; 
but upon the margins of the streams often washing away all the finer 
material, wearing to a sand the debris of the soft local rocks, assorting 
and depositing in different places the materials having different specific 
eravities. The question what that agency probably was, will be discussed 
when other facts bearing upon its full solution shall be accumulated. 
GOLD. 
One of the most interesting surface deposits of the county, and one in- 
timately connected with the discussion of the Drift, is the gold found 
about Bellville and other places in the southern part of Richland county. 
The origin of the gold has been attributed to an ancient Drift agency 
which brought in the pebbles of the Waverly, Conglomerate; but I am 
quite confident that it should be referred to the surface Drift, and was 
brought in by the same agency that transported the granitic pebbles and 
bowlders. If referred to the Waverly Conglomerate, it should be found 
at the base of this deposit. It is, in fact, found most abundantly about 
on the level of its upper surface, and in perceptible quantities on the 
slopes of the hills fifty to one hundred feet above it. If it came from the 
Waverly Conglomerate, it should be most abundant where the quartz 
pebbles of this Conglomerate are the most numerous, while at Belleville 
and the immediate neighborhood, this Waverly rock is comparatively 
