Field Notebook: Newfoundland 1918b
Page 63
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Aug 17, 1918. Keppel Island - Hantles Bay. As we go around the small side of Keppel Island towards the east we see thin zones of laminated clay, in completely unweathered. Fossils are accordingly very scarce. Duntan thinks there may be upland on Keppel Island about 20 [illegible] feet of dolomite beneath the semi-cracked beds, followed by less than 50 feet of the latter. The strata are almost horizontal, though hardly they undulate in some places with the formations all atwitter. At 2.30 we are aboard again and start for Hantles Bay. Duntan's notes for the afternoon areas follows: "As we enter Hantles Bay we pass between the southern mainland and House Island in the mouth of the Bay. This island is formed of Blue- mountain dolomite. Its east and southwest shores expose these rocks dipping steeply to the southeast but undulating, the dip varying within a few yards from 35S.40E to 30 due S. The island in a "criche monotonese". These upturned and somewhat disturbed beds of dolomite being beveled off and glacially polished, grooved and striated. See photo. The direction of the ice movement was N.80W. Chatter marks are developed along many of the striae. The northern shore of the mainland about 1/2 mile from this island in a direction N.70E is formed of Blue mountain dolomite, dipping 10N.W.-W. This promontory is once glaciated with big garrs. The dolomite here is darker and more coarsely crystallized and in heavy beds, milk dolomite streaks and white mottling of the same.