DALY: GEOLOGY OF THE NORTHEAST COAST OF LABRADOR. 215 
the granitite contact, is replaced by a band of metamorphic sandstone. 
The structural features are here identical with those of the conglomerate. 
Part of the cement of both rocks is made up of epidote, which colors the 
rock an intense green, especially marked where myriads of epidote 
crystals have formed along the joint-planes. 
The limited time at our disposal, the extensive covering of elevated 
beach deposits and of land-wash at the inner edge of the bench, and, in 
an important degree, the disturbing influence of clouds of mosquitoes, 
prevented the discovery of the actual contact between sandstones and 
granitite. The granitite pebbles in the conglomerate are very similar in 
character to the rock of the great ridge and suggest that they were 
derived from it. The deformation of the conglomerate is represented in 
the granitite by the appearance, especially near the contact, of a schistose 
structure, with atrend common to that of the conglomerate ; the two 
rocks have evidently been squeezed together. 
A sharp lookout was kept for fossiliferous bands, but no organic remains 
were discovered. Thus no conclusion could be made as to the age of 
the sediments. They have a close superficial resemblance to the 
Archean metamorphic conglomerate series of Finland which the writer 
had already seen in the field. These Labrador sediments are cut by 
diorite, granite porphyry and diabase dikes and by many pegmatite and 
quartz veins. 
Sedimentary rocks in Aillik Bay. — Aillik Bay opens at a point about 
fifteen miles northwest of Pomiadluk Point. It is a picturesque inlet 
some five miles in length and three-quarters of a mile in width. Its axis 
is directed north and south. The bay is rimmed about with massive 
rocks; diorites cut by granite porphyry dikes on the west; diorite intru- 
sive into amphibolites and hornblende granite on the south; and coarse 
hornblende granite on the east. These various rocks compose high 
encircling ridges ; at the base of these a narrow and interrupted belt of 
variegated banded quartzites outcrops on all sides of the bay. On the 
west, to north and south of our anchorage at Summer Cove, the quartz- 
ites could be traced at least two miles along the shore, but they were 
never found more than about one hundred yards from the beach. The 
white, red, and purplish layers often exhibited the cross-bedding of a 
typical sandstone. The strike of the beds is variable, changing from 
N. 60° W. to N. 20° W., the dips remaining low and constantly directed 
toward the land. The total thickness of the beds exposed was measured 
at one hundred feet. The belt terminates at the mouth of the bay in a 
veritable museum of rock-types, the quartzites being cut by an inter- 
