Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
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Transcription
Section 3, Measuring up from bentonite at
top of unit 3, section 1.
(1) 8.0 Silt, clayey becoming silty clay, dk. grey
chiefly blocky but becoming somewhat
shaley at top. In basal foot two small
egg-shaped ls. concs, some up to
grapefruit size, mostly brown, 2
few large Protocladia in one. Unit
has some silt at top grades abruptly
to shale above (unit 2)
(2) 6.4 Shale, black, very finely silty,
becoming grayer upwards, +
increasingly more fissile
Sample 7 from upper 2'
(3) 2.2 Sand, v.f.q. and grey to dk grey shaley
interbedded. Jerosite concentrated
in sand, chiefly at top + base,
shale has dark frags. (Sample 8)
Irish
cr
banded
boils
(4) 3.0 Hard grey silty shale +shaly
silt with pznt frags. Popcorn
crust over it, suggests
bentonite content. At top is
Fe weath OB streaky silt with red brn
conc. Scat. sparsely zoned strika
(5) 3.7-? Popcorn as in (4) below, more
weathered but appears some
stuff
Grass roots.
8