Field Notebook: Arctic 1990a
Page 71
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
56 Thresh to top, whip-up cliffs (max 10cm) grey mudstone Large U shaped burrow +1.5m further of unit Sandstone becomes more clean-weathered to top, pink & azolic — WAVES TIDAL? unit has small shoulder. Interbedded w/ medium grey sandy mudstone (max 7.5cm). Above 2.7m, into rel. cleanly weathered tubular m.o., s. ripple lamina, cross-stratified b.d. forms set of thin ledges, 1-15 cm tubulo.