Field Notebook: Newfoundland 1910b
Page 91
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Transcription
At the top of it is conglomeratic with the pieces rather irregular than crust rolled and rounded. These pieces are calcareous shale, hematite (laws but me piece) and partly other kinds. The top surface is somewhat hummocky as if eroded channels into which the general shale of zone 6 is deposited. It seems to me that zone 5 still belongs in the Lower Cambrian and that the Middle Cambrian lies over zone 6. This zone 5 is not at all unlike a similar zone in Zone 2 deeper in the brook. Elsewhere this lower limestone contains such Solen, pleura etc. In looking around further I see that the top of zone 5 is not only conglomeratic but that it is here that the hematite and iron pyrite has irregularly formed. It is this evidence that me can use to indicate a time break in the section plus the more decisive one of the first change in the fossils. Tried then to see the higher end of the section by going at it from the sea end. Found the mouth of Manuel's Brook harder to get at on account of the tidal waters.