SECTION 8232 Hill South of Morales I
370 m E., 1210 m N. of SW Corner, Sec. 1, T. 20 N., R. 35 E., Garfield County,
Montana.
Elevation = 8231 m
236° A2 - 0° dip from initiation of Morales I section.
Distance + 30 paces to Morales I.
Elevation of base
of unit (m) Unit Thickness (m)
Tullock Formation:
Siltstone, Mudstone: in alternating yellow and
orange interbeds, mudstone with limonitic concre-
tionary ledges, typical of Lower Tullock.
4.2
4.05 Shale: fissile, carbonaceous .15
Sandstone: fine-grained, clayey, laminated,
subangular, brown-grey, with carbon on laminae,
with limonitic yellow weathered patches in
lower half. Becoming more and more silty
above 3.6 m.
2.6 1.45
Inferred channel filling unit of carbonaceous shales, mudstones,
and rare sandstone.
Siltstone: fissile, dark brown grey,
2.42 becoming a shale upward.
Shale: fissile, dark grey, with shells
above 2.05.
1.7
1.51 Mudstone: fissile, dark brown grey.
Siltstone: fissile, dark brownish to
yellowish grey, with plant fragments.
1.15 Shale: fissile, dark brown grey, becoming
a fissile mudstone upward. Weathers rusty
yellow above 0.6 and with a 0.01 in clay-
ironstone concretion layer at basal contact.
Sandstone: fine to medium grained, massive,
dirty brown, rusty at top.
0.25 0.08 shell bed.
-0.02
Shale: fissile, brownish black, carbonaceous,
with plant fragments. Basal 3 cm with lignite
splits, but not a lignite.
-0.27 2.87
Hell Creek Formation:
Mudstone: massive, olive drab, with rare plant
fragments, as Unit 1 of 8231.
-0.3 .03
Base of Section