Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Generalized Relative SECTION.
ST. PATRICK'S BUTTE RTE. 69 & MOREAS
65 & MOREAN
Hell
Creek
Colgate
mbr.
Bullhead
mbr.
Timber
Lake
mbr.
Trail
CITY
mbr.
Sh. EIK
Butte
mbc.
Pierre
mobridge
mbr.
whitish med
to iron stainess
interfingering with
Bullhead
Grey banded
(VERY thin bands)
shales & SILTY Sh.
carbonaceous shs.
pres. BENTONITE
near base
(ventilation.)
Trans. Marine to Cont.
med. yellow sand
beach. barren
bluek cone. & fssI.
(seaphites. deb.)
Similar To E.B here
Grey SILTY Sh.
slightly lighter than
E.B. wh. to lighter
grey. Cone. ?red
Barren (mostly/sid.)
much more silvery
at this spot & ~
increasingly so to
the westward.
jarosite & barren
cone. becomes richly
fossiferous to the
cast. More barren
to the west.
jarosite midway
Grey SILTY Sh. | wh-
dark grey| cone.
Barren & sideritic)
Diff To Tell Contact
with. Trail City mbr.
Very fissile Sh. in pars
much more silvery at
this point. Mostly
tar