= 5 fins ith rang 
PST Ge Po ae 
. 
T. N. Dale—Geology of Rhode Island. 283 
mica schist and conglomerate, dip 45° E.S.E. It is quite pos- 
sible that these pass horizontally into the regular graphitic 
coal. In proximity to them at 134 is a layer of carbonaceous, 
-garnetiferous argillyte. At 135 the mica schist dips 70° E.S.E. 
| Packard's Rocks, Bonnet Point, Narraganset Pier.—At 188, 
on the mainland, West Passage, alternating dark and light mica 
schists, without garnets, dip 85°-40° E., the difference between 
them lying in the relative proportion of black mica. ese 
schists extend north to Plum Beach and N.W. to 187 and be- 
yond, and recur south at Packard’s Rocks with the same dip. 
There the light colored layers are a highly metamorphosed grit 
with some large quartz pebbles. At 138, one and one-quarter 
mile south, these rocks dip 25°-35° E.S.E., then 25°-30° 
> Saale are crossed by a granite vein. North of the 
‘South Ferry” the dip is E.S.E., and a vein eight feet thick 
of cream-colored granite crosses H.S.H.—W.N.W. about verti- 
cally. The mica schists recur just south of the ferry, and, at 
139, are disturbed by a vein mass of cream-colored granite, 
25'-50’ thick, with large crystals of feldspar and mica an 
large masses of unerystallized feldspar and quartz. A little 
south of 139 the schist contains nodules of feldspar and quartz 
and dips 25°-45° E.S.E. It makes up the whole of the cliff, 
here sixty feet high, “the Bonnet,” dipping as high as 60° 
but averaging 45° E.S.E., and crossed by veins of granite. 
On the other side of Wesquage Beach the light and dark mica 
schists recur and southward to Watson’s Pier and 140; dip 
55°-75° E. 10° Numerous granite veins, from }” to 3! 
It 
River, and also at 142, on the.other side, occurs a fine grained, 
light colored granite or gneiss. The next outcrop south is just 
_ Ward it becomes finer grained and its feldspar ieee colored 
Until near Quohog Rock it differs considerably from that of 
Narraganset Pier. Between 144 and Point Judith Light, two 
* 
