L. N. Dale—Geology of Rhode Island. 217 
Art. XXVII.—A Contribution to the Geology of Rhode Island ; 
by T. Netson Daz. With a Map—Plate V. 
In a former paper on the Geology of Rhode Island* the 
writer gave a geological map of the southeast corner of the 
Island of Aquidneck and of the east shore of the eastern passage 
of Narraganset Bay from Fogland Point south to Seaconnet 
Point and West Island. also detailed sections of Easton’s Point, 
the vicinity of Taggart’s Ferry, Sachuest Neck, and “ Para- 
dise,” together with a general section embracing the main feat- 
ures of a belt about two miles wide extending from the proto- 
gine bed of West Island to the carbonaceous schists of “The 
Cliffs” at Newport. The structure of Easton’s Point was shown 
to be that of a simple anticlinal, consisting below of argilla- 
Ceous schists, containing here and there iron pyrites and earthy 
chlorite, overlaid by a coarse conglomerate of pebbles of finely 
stratified, slightly micaceous quartzyte with traces of Lingule,. 
possibly of Silurian age. It is uncertain whether the bed of 
conglomerate at present covers the schist entirely on the line of 
the section; toward the end of the point it has certainly been 
and clay aggregate) containing in its upper part a few layers of 
black slate minutely veined with quartz and tale, and contain- 
-{uereux describes as very common in Pennsylvania, 6 8 
cially in the’ lower strata above the Millstone Grit.” At 
alternating with as many of mica schist, constitute the three in- 
tervening ridges, forming a monoclinal with a west-northwest 
q se ®, 
hess and 
has lends some support to the theory that we have here 
oO 
* 
Am, Jour, Scr—Turep Series, Vou. XXVII, No. 159.—Maxon, 1884. 
5 oe 
