Field Notebook: Newfoundland 1918a
Page 112
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Transcription
90 July 29-1918 Bonne Bay to Cow Head. if that much 75 feet All of the Paleogene rocks are cut off at this level by the intruding sea and the intermediate areas filled in most sand brought by the streams from the Bay Bays, it is the same elevated beach that we have seen so often. On page 89 it was stated that the Bonne Bay section in two miles of fairly constant dips gave a thickness of 4500 feet. To this it would seem should be added once faced crossed to Cross Point Light. In addition to the strata from Hell Cove crossed Cross Point, North Arm are three added. This is a distance of 21/2 miles and at 35 degrees around gives an additional 7000 feet. As at Final Point the strata receive this dip this would reduce the distance to about 11/2 miles and a thickness of about 4500 feet. Whichever way one turns this is a thickness of the Bonne Bay series - Paraglated series if at least 9000 feet and then maybe even more than 10,000 feet. It seems none of these statements can be relied upon as they are all based on general Narrations. As we get opposite Bony Head on the Cross Mountain calls me to deal to see and p.119 that Sirs Monroe is made of a stratified sand (Day 82). This is certainly true. The question now arises what is the age of these strata. If they are Parageneic they are faulted off in relation to the granite of the Bay Bays, farther north. The distance from the Cambrian out of East Arm to the northern side of Sirs Monroe (2600 feet high) is 4 miles. At 25 degrees dip this would give a thickness of over 8500 feet of Parageneic. This would account for the upper marbles (3700 feet) and the middle schist (5200 feet). On the other hand Dunton calls my attention to the swinging around of the Cambrian strata of East Arm into Deer Bone Bay. If this turning is continued to take in Sir's Monroe then what we saw in the Cambrian on the upper part of the Mt. Dunton rather think the rocks are of Parageneic age. Or any, you think it - are Parageneic, in any event one have cut off get from the presence a chance of Parageneic in Bonne Bay.