_ May be supposed that they come up an 
LT. N. Dale—Geology of Rhode Island. 285 
in Church’s Cove, Little Compton, at the base of these argil- 
lytes and near the protogine; and a ferruginous chlorite o 
slightly different appearance occurs near the top of the proto- 
gine at Bailey’s Beach; and it is natural that rocks abounding 
in chlorite should be followed by some a little less chloritic. 
For all these reasons the normal position of the chloritic argil- 
lytes would seem to be above the chloritic and epidotic schists 
of 15 and 17 and the chlorite and hornblende schists. of — 
Paradise,” 
The dolomite at 94 and the Lime Rocks is associated with 
purple slate, and these slates belong to the chloritie argillytes, 
and so the dolomite. These two outcrops, as stated by 
inne it is evident that the Series of (what may be provisionally 
termed) Pre-Carboniferous rocks is but incompletely repre 
Sented at any one point. Thus at Rose Island the Carbonifer- 
ous rocks rest on the chloritie argillytes, at Sachuest Neck on 
the siliceous argillytes, but in Conanicut directly upon the pro- 
togine, On Newport Neck the siliceous argillytes lie upon the 
Protogine, but in Little Compton apparently the chloritic argil- 
lytes take that place. On Newport Neck the siliceous are 
J8Xtaposed to the chloritic argillytes, but their relative age is 
n0t clear. The following indications, however, throw some 
light on the question. The Conglomerate I associated with the 
Siliceous argillyte at Sachnest Neck contains pieces of ret 
Jasper, and that occurs in this vicinity only in connection with 
the dark purple slates and dolomite of the chloritic argillyte 
“cries, At 66 the siliceous argillyte contains fragments 
. At 6 | 
chloritic argillyte. The conflicting flexures throughout the 
ys'on diminish the value of dip indications; but it is notice- 
able that the dip of the chloritic argillytes on Newport Neck is 
almost uniformly toward the siliceous argillytes, and that as the 
former nowhere come up again to complete t 
Gh before reaching the exposed portion of the protogine on 
the neck, F he relative strike of the st 
" rom t gut ag 
.. at Sachuest Neck and that of the chloritic argillytes of Little a 
* 
iliceous argillytes 
