Field Notebook: MD 1945h
Page 29
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Hole 26 0-18 overburden 18-5 ironstone 24-4 gray iron-stained siltstone, splits in horizontal layers. A 4" ironstone in middle of unit. 25-4 fine-grained sandstone with thin gray streaks throughout. 26-9 gray iron-stained siltstone, splitting fairly easily. Interbedded with sandstone in upper portion. shaly 30-1 dark gray to black siltstone; iron-stained. 38-7 dark gray to black shale with more or less fossililty. 40-7 dark brownish-black to black claystone. Breaks into angular pieces rather easily. Thin streaks of hard black shale within unit. 41-3 ironstone 55-3 dark gray to black "bastard" clay with inter- bedded black shale horizons. 56-1 limestone with a thin streak of gray claystone. 56-8 black carbonaceous claystone 57-1 COAL 57-9 black carbonaceous shaly claystone to shale 59-11 limestone somewhat carbonaceous at top. 61-1 calcareous claystone 64 light gray siltstone with limy stringers 69-4 light gray shaley siltstone with very stains 71-5 dark gray to black shaley siltstone with sandy streaks. Iron stained. 72-9 black carbonaceous siltstone with shaly partings and nests of pyrite. 78-9 limestone. Quite hard. 82-7 slightly silty gray claystone with num- erous large inclusions of limestone 86-5 dark gray easily broken claystone with black horizons throughout.