Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Wednesday July 27. Current Island.
The day started in fine but soon changed into a foggy day
with a tendency to rain.
Spent the morning on Current Island. Saw stratly 150 fut
of Lorgans grve E or S. It is a series of thin and thick
bedded grey to light blue dolomites that overlie to a light
yellow or a gray light grey. Many of the beds are sirdiforms.
The beds lined with small quartz crystals. Some erosion
is seen in many layers and there is considerable pucciation.
The evidence is all for very shallow water deposits.
The dip of the strata varies between 10-12 degres N.45 to 60 W,
No fossils of any kind other than facrils were seen.
In one small core a considerable area was seen specially
striated. Their direction are N. 75 W. Their present level was
practically that of sea level. At none of the higher levels once
seen other striations.
There is at least one once eroded elevated track with a cliff
back of it. Its now healing down but the appearance is very young
in fact 100 years or even less would have broken it down to its
present appearance.
Taylor tells me that inland at least 20 miles are found bones
of whales (a jaw and macthree) and many ovals of Ostrelos edulis. The
bones are still solid while the shells are chalky. These must have
sitten to their present place when the sea stood at a higher level and
this could not have been so long ago.
In the afternoon walked along the crack towards St. Barbe
and saw the same kind of dolomites as this morning.