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Transcription
Saturday June 29 1907
Birch Point (cont per.) sill
Work was begun at the pink flute = 1068. Slab + junk.
Feldspic [illegible] which is seldom completely by the shale.
But the latter are looked on the contact, while (beside the
cause structure) proves the rock an intrusion. This diolite
is cut by a thin vein like a few rocks thick and is
followed by a series of slaty & fluggy shales which strike N 66° E
and dip 27°, N 25° W. The rocks are gray in color, the fluggy
appearance predominating, considerably a firm seam holds so
many fossils that it is calcareous & rolled.
[illegible]
6.1.2. A is a seam of Speridites 3 ft above the diolite.
Like:
6.1.2. B is a seam 6 ft. above the diolite and contains
Speridites & character of little Chrintra (similar to Oaken Island
rock bed cut). Speridites occur in several sections some times 2 or 3
6.1.2. C is a calcareous seam 30 feet above 6.1.2. B. It
contains ladders like Speridites & some ostracoda similar to those
of Blackford Head. The rocks themselves are bluish gray fluggy &
grayish shales with thin continuous calcareous seams from
4 to 14 inch thick. In places the rock amounts to a conglomerated
sandstone of which a couple of good bands are 5 or 6 inches
thick in places the rocks in weathering break out to almost
as white.
6.1.2. D is a "rotten" seam an inch thick, composed of
ostracoda & a few Speridites - 2½ ft above 6.1.2.C.
6.1.2. E is a series of rotten seams extending through
several inches and about half a foot higher than D.
6.1.2F includes the fossils from the lower seams" &
from the upper seams.
20 wells above 6.1.2.C is a coarse grained trap interbedded
with the shales and resembling flows in its evenly
interbedded stratigic position as well as in the fact that the
shale underneath are only slightly baked and these
overlying badly baked at all. The trap is coarse two mass
& coarsely crystalline for an intrusive & represents perfect
sill. At a 30 or 40 ft thick - = 1068 B.
Between the above 6.1.F, & D and under the sill of trap
are 10 wells of gray shale which weather in places nearly
white & intrail as a little baked into a compact firm
rock. A seam of obscure lamellibranchia occurs 2 inches
below the top = 6.1.2 ft.
Above the trap dike are 11 ft of dark gray slaty
shales and much shelly fluggy. There are a few dark ostracoda &
very fragile gray shells found in the middle and a couple of
persistent calcareous seams an inch thick containing some obscure lamellibranchia & ostracoda = 6.1.2.G.
Above the 11 ft of slaty dark shales of 6.1.2G are 7 ft of massive
very fine grained siliceous sandstone of a light gray cemented in
nearly white. The sandstone occurs in eight or nine inch
beds and appears one of fine quality. It is possibly too much
jointed & too thin & of commercial importance. A seam