TERTIARY FORMATIONS, 181

Echinoids, sharks’ teeth, ete., are present. A few rods downstream
the marine Cretaceous appears, while 34 mile above the bluff, where
the other Eocene section described below is exposed, the Gicis oso also
appears. This shows that the Eocene occupies a basin in the Cretaceous.

: SECTION JUST ABOVE 83 MILEPOST, NEUSE RIVER.
Pleistocene: Fret.

PANISCOVOEOR © SIOPE 5 begin ceo ee a ak Gg RO La 25-85

Hocene (Trent) :
White to greenish-white soft limestone containing some fossil
casts. Pecten is common, Limestone contains some glauco-

TALC ss cee ak Les nea pes Sek Frei Sp RR Be 40
Greenish-blue, hard, argillaceous limestone, with echinoid spines,
portions of cchinoid ‘tests, C&C ol iius sais os sateen es ee a 6

The limestone has been burned for lime.

On the farm of D. L. Flowers, about 3 miles directly west of Mount
Olive, there is a marl pit from which marl is taken for fertilizing
purposes. The marl consists principally of a rotten limestone contain-
ing many fragments of shells. Casts of bivalves, fragments of Echi-
noderm tests and spines were observed. Lithologically, the material
resembles the other Eocene of the region. The pits are located near a
small branch. A few feet of surface clays are stripped off and pits are
dug to a depth of about 25 feet in the marl. The material is very
dry, no water interfering with the digging. After exposure to the air
the marl soon crumbles to powder.

One pit penetrated the marl at 25 feet. One pit 23 feet in depth did
not pass through it. Near the upper surface the mar] is of a light yel-
lowish color, but deeper it is of a very pale greenish color.

About 100 yards to the west ‘of the pits, on the other side of the
branch, a well was drilled to a depth of 151 feet. It is perhaps 20 feet
below general level of the surrounding country. The water rises near
enough to the surface to pump with a pitcher pump.

SECTION 3 MILES WEST OF MOUNT OLIVE.

Pleistocene: Fret.
Sand and Clay... 10... cece eee ees ec eee eee Q- 12
Bocene (Trent) :—
NEoEr Sinllay tO That Aik MEE be ey bees Oi oe Kev eee vy he wees a 12-150

The water comes from just below the marl, from material containing

small leaves resembling cypress leaves, probably of Oretaceous age.
About 1 mile west of Mount Olive marl is reported which contains

an abundance of sharks’ teeth.
Marl is also reported to the northwest of Mount Olive 1 mile, and

to the east 2 miles.