Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
July 9 - 1918.
The Gravel spits are the more infill. far old and defend Channel. From the south the wars are straight and have thrown of a big fan and wide spit. The northern me is somewhat lower and narrow. As oira can cut this channel and as or may small faults are present in this area it would seem as if we had here another case for a down-letting fault hood, with the rocks disturbed the sea ways could have cut out the neck, and a special times the ice probably plowed through it scouring it out farther. The present spits are probably of post-glacial origin.
In regard to the basal Belemnite town on the other side of Bay St. George sandy Portran Park Dumfries notes as follows:-
"The lower 200 feet are reddish, very fine and iron grained sandstone. Above this there is a gradual change into dolomite which in thinner bedded and bandred. On top of the suc-ceeding strata are the regular alternations of lighter and darker layers of dolomite. The thickness around here is 500 feet"
St. Georges Peninsula now
It is clear that the Windsor overlapped the folded Ordovician and in a basin very much like that of today.
We have seen nothing as yet of the Silurian Cambrian here in the south, but we have seen three places at Portran Park where the contact between Belemnite town and Chage is broken up by distinct erosion unconformity. This confirms what the fossils show.