112 
TRIA.SSIC DEPOSITS AT EMBOROUGH. 
Carboniferous limestone, many of very large size, imbedded 
in iron-stained clay or firmly united in hard red limestone 
breccia. Large pockets of both red and yellow ochre and 
geodes lined by fine quartz and calcite crystals occur. Mr. 
Barton believed that a good deal of manganese occurred 
round the edges of the ochre pockets ; but Mr. Parsons, to 
whom we submitted specimens, found that it was not 
present. 
North of this quarry two trial shafts (7 and 8) have been 
opened in red calcareous sandstone (bed b) containing small 
fragments of limestone and much barytes and calcite in 
larger or smaller pieces. The more southerly (7) of these' 
two shafts shows about eight feet of this rock. The more 
northerl}^ (8) shows several feet of red crumbly marl (bed c) 
resting on the red calcareous sandstone, which here contains 
irregular bauds of red and greenish clay. These beds dip 
north at a very low angle. Some very large blocks were 
removed from this shaft. One of these, which, according to 
Mr. Barton, originally weighed about six tons, consists of 
Carboniferous limestone breccia, with barytes, quartz and 
calcite filling up the space between the fragments. Another, 
the weio;ht of which was about the same, is an enormous 
geode, now broken into six pieces. The wall of the geode is 
formed of red sandy limestone ; this is lined b}'- a layer of 
impure quartz, and then comes a layer of big calcite crystals 
projecting into the cavity. 
The red marls seen in the previous excavation can also be 
detected in the next (9\ now partially occupied by a little 
pond, lying in the north-west corner of the field. Resting on 
them are about six feet of yellowish clay (bed d) which is used 
as fuller's earth, and is the equivalent of the Tea-green marls 
of other localities. Along the bottom and also near the top 
of this clay occur bands of curious sub-spherical lumps of 
