J.D. Dana—Taconic Rocks and Stratigraphy. 221 
and no observed facts suggest any doubt as to the unity of the 
whole. The eastern portion may differ from the western in 
chronological limits, but all is evidently of one and the same 
on. 
In Canaan, as in Salisbury, the schists and the associated 
quartzyte overlie together the limestone and thus present the 
same stratigraphical proof of identity in formation and age. 
Further, the schists of Winchell’s Ridge overlie the same lime- 
stone and have the same claim to be considered a part of the 
Mt. Bebington or Taconic stratum as the ridges to the east- 
_ ward, 
IV. - The limestone overlies conformably strata of quartzyte and asso- 
ciated mica schist, proving the existence of an inferior quartzyte 
Jormation. 
si that between the limestone belt and the Archean on the 
Da side near Kent, and on the west side near Sharon and 
ver, exist some of the localities of quartzyte so situated. 
’S indicated by the Q’s on the map; and another area on its 
porth side ied the riage of South Canaan and Cornwall. 
hg the position of the quartzyte between the limestone and 
® Archean it is robable, as has been stated, that this quartz- 
Yte is older than the limestone and of the age of the Potsdam 
Sandstone. No outcrops of limestone occur close against the 
qWarizyte, and we are unable therefore to decide the question as 
ms Conformability. We have only the fact of conformity 1n dip 
Spstant outcrops, both near the village of Kent and near 
aron, 
thetlisbury and South Canaan both as mes coe schist sg 
“ Wartzytic variety, overlying and underlying % , 
and the Schist does Abe dior ementally from that over 
- JOUR. Scr.—Tarep Series, VoL. XXIX, No. 171.—Manon, 1885. 
15 
