LOESS OF PECZEL, HUNGARY 
285 
THE LOESS OF PECZEL, HUNGARY. 
B. SHIMEK. 
Peczel is located a half-hour’s ride by rail east of Budapest. 
Extensive exposures have been made east of the town in a brick- 
yard lying just north of the railway. For two hundred yards 
interrupted exposures face the railway. Eastward the line of 
exposures sweeps around the end of a ridge, and is continued 
northward, on the north side of a narrow valley, alopg the side 
of an upland which borders another valley extending in a north- 
erly direction. The entire region lies south of the southern 
boundary of the European drift sheets. 
Practically all the sections show two very distinct deposits: 
a lower stratified deposit which is evidently aqueous in origin; 
and an upper aeolian loess. 
THE STRATIFIEH SECTION. 
This is regularly horizontally stratified, and consists of alter- 
nating bands of silt and sand, the latter with small pebbles in 
some places. There is little or no cross-bedding, and the deposit 
appears to have been formed in rather slack water. It is marked 
h in figures 1 and 2 of Plate XXXI. 
The prevailing color is yellow, but there are frequent darker 
bluish or brown bands, and the upper part, along the line of 
contact with the loess, is commonly strongly oxidized. Occa- 
sional horizontal oxidized lines also appear in the body of the 
deposit. 
The greater part of this deposit contains only a few scattered 
fragments of the shells of mollusks, but at one point, near the 
eastern extremity of the cut which is represented in figure 1, 
a larger number of shells was discovered. This was at and near 
the point marked c in figure 1. The lower portion of this pai^t 
of the bank contains sand which appears to be more or less in 
pockets. The species which were found in this sandy portion 
are checked in the first column of the table of mollusks which 
is here presented. The upper part of the stratified portion at c 
consists largely of silt which seems to be formed chiefiy of loess 
materials. This also contained some shells, and these are marked 
in the second column of the table. As this part of the exposure 
