260 GEOLOGY OF OHIO. 
The face of the stone where quarried by Mr. Brown presents some in- 
dications of a fault of about four feet. A perpendicular seam cuts the 
beds from the top to the bottom. An unusual accumulation of shale and 
slaty layers on one side of this seam marks a horizon about midway in 
the thin beds of the quarry (No. 2 of the above section), terminating 
against the seam abruptly, with no continuation at that point. At a 
point, however, about four feet lower, the same kind of shale and slaty 
layers appear on the opposite side of the seam, and prolong the horizon 
in that direction so far as the stone is exposed. 
The quarry of Mr. McLaren has five feet of thin beds and nine feet of 
thick beds, embracing portions of Nos. 2 and 5 of Brown’s quarry. Mr. 
Sharrock’s quarry is entirely in the flagging of No. 2 of Mr. Brown’s, 
exposed ten feet. Mr. Quay’s is the same as Mr. Sharrock’s. 
The quarries at Mt. Gilead are in the banks of the Hast Branch of the 
Olentangy, or Whetstone Creek. Here there is a slight dip toward the 
south south-east, and the following section can be made out, in descend- 
ing order: 
Feet. Inches. 
Noe de eDiittystratitledainesomeplacesiessscaccsrscseeassieseiseeecscen rece: 15 
SOI VBerea oniteithnin WeCOSyT. javetccceeunee decks oaceuisieent aneetreesoremes 10 
Hie Si BCTea CHUL BUMICIDCUS i -tnicceossenostsvedeelstne losses seal daseerteesscmens 6 
7 44 hin bedsiok sandstone, watheshale eee... cnssdoecerteeel eon 19 7 
Seto OIA Crs sutaclaves was tesodesuastuser seculedset exw opnssuasisacrentcceteeneelseermec mare 22, il 
MotalvexpOsedecrsetcreia..<sesilesessesatmaameascomencteessur eens: 57 8 
SECTION OF THE BEREA Grit AT Mri. GILEAD. 
MMM ERODED CHANNE) SSE 
5 yi of 
tana — pf : : : x FIST eaSaee Aa AED a 
aS Au aa px a OLENTANGY, . EES fie ep ya Sets 
Notes on the foregoing Sectton.—No. 1 has a brown color at the rock banks, 
but a blue clay is met in town in wells, with a thickness of four to ten 
feet in some places, showing the usual characters of the hard-pan clay. 
No. 2. The thin beds of Berea grit seem to be constant, and immedi- 
ately above the heavy beds. They have been seen in every place, both 
in Morrow and Crawford counties, where the heavy beds have been ex- 
posed in quarrying. 
