Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
196
August 28-1918 Middle Arm, Cont. from p. 193
[Section continued from page 193]
10' Dark greenish-grey shale vs., in lens has cretaceous clay.
12' Quartzite like that above.
5' Dark shaly dark feldspar s.
40' Greenish-grey quartzite s.
Here there is a dome and beyond it the dip swings to
about due south.
This brings us to the edge of the Baradawng Gneiss where
the strike is about along shore to where the shore trends sharply north
again. From this point and around about 1/2 mile to the next
point is a big cliff formed of black shale almost excluding
in which the schistosity is stronger than the bedding. The latter
can't be detected in places, when it shows that the shale is also
folded and masked.
Baradawng Gneiss