Field Notebook: CO 1955
Page 143
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
purple band at base, alternating green gray & purple gray chystone chlc nodules in upper part nodules + 2" conc. ls at top. some lmo frags in flou? 34.0 Interbedded unit above purple band continues. Alternating purple-greenish gray chystone, chly szudy, with limestone beds increasing upward in thickness and number. At top is 3.0 limestone bed - most of others only 0.13-0.5. some near top have red chert. 14.0 Chystone, gray green, chlc some ls in lower part 0.3 bed chlc siltst at top 56.3 Chystone, var, red-greenish some salty, hard zones less chlc than below. 2.5 ft green szudy clay at top, 70