J. B. Elliott—Age of the Southern Appalachians. 291 
a deeply decomposed hornblende slate, giving rise to deep red 
soil. These two latter formations were supposed to be the 
— €quivalents of the Knox sandstone and shale. They are just 
such forms as are seen along the Air Line railroad where that 
road passes near the limestone about Gainesville and Clarkes- 
ville, Ga. The limestone at these latter places was regarded 
by Bradley as the limestone of the Knox roup 
Section IV.—From Datrox, Gxorcra, THRovGH Exiay To 
ARMACOLOLA, GEORGIA, AND FROM ARMACOLOLA THROUGH 
JasPeR To Daxton. 
very siliceous. The hills that are crossed do not present the 
Continuous ridge appearance but are low and irregular. Along 
the road the distinct succession of the different beds cannot be 
A 
the river above and below the road. les and cobbles of 
the Drift were found on the elevations from forty to fifty feet 
above the flood plain of the river. ond the Connasauga 
Much of this shale was very siliceous, giving rise to san 
b 
the road crosses the dolomite with its characteristic chert fol- 
lowed by the shale with its characteristic limestone. This 
limeston i 
Wherever met it is a dove-colored rock filled with interlacing 
calcite veins. Even where, as in some of its outcrops between 
Jasper and Spring Place, it has assumed the shaly structure of 
the bed enveloping it, its smallest masses can still be identified 
by these ealcite veins i 
_ 18 stated in these words—“ the (lime) rock at this place is blue 
and intersected with calcite veins.” 
