Field Notebook: Newfoundland 1918a
Page 47
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Transcription
July 8-1918 Quarters notes none of those pink strata are sandstones. See the two samples. This takes us to the point about one-half way to Iron O' Man Creve. Beyond this point we pass into very fine grained dense reddish sandstone which is about 100 feet thick. Our fossils were seen in it, but there are local pockets of intraformational conglomerates. The dip along here is 20° N., 25° W. "Long below the sandstone the sediments gradually change into more dense and red clay then reddish laminated dolomitic limestone which continues for a thickness of 80 feet. These beds show ripple marks at many levels -- in fact every few feet -- and edge-on intraformational conglomerates are developed to an extreme degree, forming cryptogms very few feet through the entire thickness. Sun-cracking was seen at a few levels only, and in some place gigantic ones, the polygons being 2 to 3 feet across. A section through this layer shows that the cracks are still more deep. They were about one inch wide and are filled with matrix of slightly different texture than that of the polygons. Layers of Cryptogms occur at frequent intervals through the beds. Just 3 feet below the giant sun-cracks is a thick layer of Cryptogma, with circles 2 feet across. "This brings us to Iron O' Man Creve, the same strata forming the point on each side, while the creve turns us back up into the higher sections. From here on to Felixo Creve the creve is cliffed and inaccessible but the slope is