Field Notebook: Nova Scotia 1912
Page 39
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Transcription
Parrsboro, July 7 1912. Spent the morning seeing the exposures along the East side of Chest Bay. Did not go out to the eastern point to see Toranic trip and red shales and sandstones. Next to the Toranic according to Fletcher is the Devonian that at first (the highest beds) consist of some red shales that seem pass into carbonaceous shale and greenish shales. In those dark beds near the top occur Estheria and Levia that are at times very common. Rarely is seen a small bivalve and a few specimen of a <crustacean> little they occurs associated. Lower down small bivalves are very common. In between the prodifurms layers the great mass of these beds consists of reddish clays that are throughout well- crusted. Ripple marks are seen almost at all levels. This entire series consists of very shallow mud flat de- posits, evidently in connection with the sea but at no time are they true marine deposits. On the basis of the Levia these deposits must be Pennsylvanian age. These beds are continuous with what Fletcher calls "Carboniferous limestone". Farther westward along the line these shales are terminated unconformably by a <brick-red> and serpentine craze boulder conglomerate that may be 10 foot thick. Hyde thinks it may be of a younger series unconformity resting on the Pennsylvanian beds but could not make