LOWER CRETACEOUS, 95

by Pleistocene terracing processes. The Patuxent-Black Creek con-
tact undulates a few feet above and below water level. (For sketch
map of Neuse River, see Fig. 4, p. 96.)

From Smithfield to Blackman’s Bluff the river is bordered by low
Pleistocene terraces, and as the observations were made at a time
when the water was 8 or. 10 feet higher than its normal stage, none
but Pleistocene materials were seen for this distance. Had the water
been low it is probable that Cretaceous beds would have been revealed
at the base of some of the sections.

At Blackman’s Bluff 11714 miles above New Bern only Black Creek
beds were exposed, but it is possible a low-water stage would have re-
vealed Patuxent beds at the base.

All the remaining Neuse River sections described below were pre-
pared from observations made at medium to low water stages.

At 115%4 miles above New Bern and 1 mile above Cox’s Bridge, the
following section occurs:

SECTION 1 MILE ABOVE COX’S BRIDGE, RIGHT BANK.
Pleistocene: FEET.

Yellowish clay, becoming sandy towards base, containing occasional
pebbles and small bowlders of quartz and crystalline rock, espe-
cially near the base, and also a few rather large pieces of silici-

OES OOS oy 255s Spa's Sisimais Ass eaten oes Cabs th nee ae oe 10
oe ds) Re 67 REE as Sam RD, A Seen el te SAN Or Morini ie SRP yuna, meses S| %
(Unconformity.)

Cretaceous (Patuxent formation) :
Dark gray, very compact, micaceous, arkosic sand............... 2

Coors Mill Branch enters from the left bank a short distance above
milepost 111 and just above Quaker Bridge. Coors mill is located
about 1% mile up this branch, just where it leaves the higher land to
cross the river flood plain. The foundation of the mill is built upon
a crystalline phyllite rock which was observed rising to a height of 10
feet above the bed of the stream, and, as indicated by the occurrence
of large angular quartz fragments, a short distance away on a higher
terrace level at a height of 30 or 40 feet above the stream bed, the
basement rocks probably penetrate upward entirely through the de-
posits of the Coastal Plain at this place. This is interesting as show-
ing the great unevenness of the buried Piedmont surface in this

region.
At Tollers Bridge, milepost 106, there was exposed at low water
about 3 feet of light-drab, finely arenaceous and micaceous clay, of the

*