Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
See J-30-1
20 Slightly silty clay
5YR 5/1 with carb.
frags.
20.3 LIGNITIC ZONE consisting
of shiny BLACK PLATES
of CARB. MATTER which
are bent & twisted
& occasional blebs of black
shiny "amber"
20.8 "Orange Zone" 10YR 6.5/2
SLIGHTLY SILTY CLAY
wh. 10YR 8/7 10YR 7/4
LIMONITE in joint fillings.
gypsum xls on I.
23' do' 20.8 for rx
BUT begin zone of
1/2 - 1 mm cemented
limonite spherulitic conc.
5R 3/2 on outside.
also 5YR 4/4 5YR 4/6
Limonite to greater
inside 5YR 5/6
24.6 DISCONT. layer of CONCS.