THE QUATERNARY FORMATIONS, 281

some instances quite large, attaining maximum dimensions of 4 or 5
feet. These are believed to have been transported from the Piedmont
region by floating ice, or in the roots of floating trees.

The thickness of the formation varies from 10 to 30 feet, or perhaps
in rare instances amounting to as much as 40 feet or more. The aver-
age probably lies between 20 and 25 feet.

With the exception of fossils which have been reworked from older
underlying formations, no animal remains have been found in the de-
posits of the formation. Fossil leaves have been found at one locality
near Weldon which is believed to represent an estuarine phase of the
formation.

Detailed Sections.—There are many exposures of this formation in

the bluffs of the larger rivers crossing the belt, and occasional exposures
along smaller streams and-in road and railroad cuts. In almost all
cases the beds form the upper 10, 15, or 20 feet of the section, and rest
unconformably upon strata of pre-Pleistocene age, either Tertiary or
Cretaceous. A few localities will be described in detail on following
pages. :
As above noted, fossil leaves were obtained near Weldon. The local-
ity is 114 miles east of the village, a short distance directly east of the
wagon bridge over Roanoke River in- Northampton County. From
poor exposures the following section was prepared:

SECTION 1} MILES EAST OF WELDON, NORTHAMPTON COUNTY, N.C.

Pleistocene (Wicomico formation) : Fret.
Mostly concealed by vegetation, but in part yellow, more or less

BAY, ONE rie ae espe cor tas ae rele eR As a en RE EEE 35

Yellow; pebbly; areillaceous sand a..¢ 62.5 2a a ee ee 2
Small lens of yellow, sticky clay, containing well-preserved prints

OE TCRVOR ca Pias c's See alee woe Aigiite’s PEELE caves ate Es %
Yellow, very coarse, pebbly, arkosic sand. . The pebbles are for the |

most part only partially water-worn.......... Seah Raa as ys had 2%

The following list is furnished by E. W. Berry, to whom the fossil
plants from the above locality were sent for identification (see, also,
Torreya, vol. 9, No. 4, April, 1909) :

Cercis canadensis Linné.
Liriodendron, tulipefera Linné.
Quercus predigitata Berry.
Quercus sp.

~The top of the section as determined by aneroid readings is about
95 feet above sea level, and the base is about 20 feet above the normal
stage of water in Roanoke River.; The deposit is regarded as an estua-