Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
June 23
Loc J-23-3
Eastern side of Cuesta # and end
of formation of Butte
WB: a light gray argillaceous
fine grained silt with coarse
fragments of coral.
contact G.V.-W.B.
limonite zone
not impregnated
1 G.V.
2.
G.V. 1 yellow & grey spotted
silty sand with clay
mucinous nbt 637.
2. A limonite colored
relatively homogeneous
w/ fine grained mucinous
sand
Sample J-23-3-1
Hematite layers
Hematite layer does not
always follow channel