86 
KEITH. 
clipped toward the center of the basin when originally formed, 
then their restoration to a horizontal position would diminish 
the original depth of the basin. 
There appear in the section two synclines with dips from 
ten to thirty degrees and a length of twelve miles, which is 
a considerable amount of deformation. It may have been a 
local manifestation, however, such as are found in later beds 
in isolated places. 
(2) No other area has been studied in such detail as this, 
and the evidence at hand is conflicting. In Dennys moun¬ 
tain, twenty miles northeast of Chilhowee mountain, the 
Knox lies in one place conformably on the Chilhowee sand¬ 
stone, in another abuts directly against it. The structure is 
too complex, however, to warrant very exact inferences. 
Northeast from Dennys mountain the Knox-Chilhowee con¬ 
tact is made by a fault. 
(3) Iron and Holston mountains, near the Virginia line, 
have been hut little studied, but their structure is so simple 
that inferences from it are reasonably strong. These moun¬ 
tains contain a wide syncline of Chilhowee rocks, dipping ten 
degrees, and on it the Knox lies conformably. 
(4) Southwestward from Holston mountain, near the Noli- 
chucky river, the Chilhowee beds in Iron mountain thin 
materially and nearly disappear between Knox and granite. 
This may be due to erosion of the Chilhowee before the Knox 
or to original thinning and overlap of the Chilhowee near 
its shore. 
(5) Southeast of Iron mountain, in Hampton valley, the 
Chilhowee beds thin from 2,000 feet to 100 feet in three miles 
between Knox and granite. This, too, may represent either 
erosion or overlap, as far as is now known. 
(6) In Limestone cove a central area of Knox is surrounded 
by a ring of granite, and the whole valley by a high wall of 
Chilhowee sandstone. The Chilhowee beds form an anti¬ 
cline with the *cove in the center. Chilhowee was first de¬ 
posited on the granite, then Knox. As there is no Chilhowee 
sandstone here between Knox and granite, at least 2,000 feet 
