TRIASSIC DEPOSITS AT EMBOROUGH. 
113 
calcareous matter. Mr. Barton terms them the " Ball Bands." 
The " Balls " may be as much as six inches in diameter, and 
are very hard. When broken, they are seen not to be con- 
cretions aggregated round a centre ; but their mode of origin 
is by no means clear. Immediately above the lower Ball 
Band " there occurs a peculiar bed about nine inches thick, 
which Mr. Barton calls the " rough bed." It consists of 
little irregular highly calcareous lumps, about one-sixth of 
an inch in diameter, embedded in marl. The top of the clay 
(fuller's earth) band shows an eroded surface, and on it rests 
an irregular band of false-bedded sandstone (bed /*), with a 
thin basal layer of conglomerate (bed e) containing fish scales. 
This is the most northerly exposure seen to the west of the 
works. 
ih) Those to the east of the ivorks. 
To the east of the works there occurs also a very interesting 
series of exposures. The most southerly of these (10) shows 
at the top : — 
ft. in. 
Bed/. False bedded sandstone . . . .16 seen, 
,, e. Conglomerate with pebbles of quartz and 
chert and numerous fish teeth . .05 and under. 
,, d. Yellowish clay (fuller's earth) with 
" ball bauds " at top and bottom . 10 0 
„ c. Red marls .... about 1 0 seen. 
12-13 feet. 
The yellowish clay (fuller's earth) is several feet thicker 
than it is to the west of the sheds. 
In the field to the north-east of the sheds there is a 
ver}^ interesting exposure (12) of the Black Shale series. The 
section shows at the top : — 
I 
