Field Notebook: CO 1951d
Page 101
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
poor exposure of soft beds. At this locality and to S, across drows the lower platy SS or shales or sits on massive light ss & slates. No black shale visible. Is slope at ? blush or claystone - on A Lower platy-ridge forms B < massive grey local possible clay < massive light grey this depends whether contact goes of A or B Remains of exploration trench here shows presence of 1 bentonite in silty grey shale This is 3rd Glencarn clay 6. Ridge in general shows 3 Glencarn sandstones. the usual clays. 1st clay only one mined to date Exploration tunnel to other Glencarn clays new (1951 Aug) being driven in Johnson Mine. 7 As north end hogback approached the Lytle sandstones coarser & thicken to great width course sandstone 2nd col. At north end the unrecognized clay above ss also thick and a "Fusion-Lytle" setup is present.