110 TEIASSIC DEPOSITS AT EMBOEOUGH. 
and Radstock road, about a quarter of a mile south-west 
of Old Down Inn at Emborough. 
II. Detailed Description of the Exposures. 
(a) Those to the west of the tvorks. 
The Triassic beds rest with complete discordance on a very 
uneven surface of Carboniferous limestone, which is exposed 
in three of the thirteen excavations now open. It is seen (1) 
in the extreme south-west corner of the field near the railway, 
dipping at 33° E. 35° N. In the surface soil above the 
limestone occur lumps of weathered limestone concern- 
ing which Mr. Barton said enquiries had been made with 
regard to the extraction of zinc. Mr. J. Parsons B.Sc, 
E.Gr.S., has however kindly examined some of this material 
for us and has found no trace of zinc in it. Another small 
excavation (2) north-west of the first shows the limestone 
dipping at 40° N.E. 
The Carboniferous limestone is, however, much better 
exposed in tlie comparatively large quarry (3) a little farther 
north-west, where it is worked for road metal. The limestone 
includes several partings of shale, some of which are very 
fossiliferous, and have yielded a number of large specimens of 
Producta gigantea^ together with Producta semireticulata 
and Orthis resupinata. Large masses of Lithostrotion 
irregulare were also found. The limestone contains several 
pockets of valuable ochre and of iron-stained sand. The dip 
in the south-west corner of the quarry is 68° N.E., while in 
the northern part it is not quite so high. The Carboniferous 
limestone is also exposed in the north-east part of the large 
quarry in the Dolomitic conglomerate (6) to be referred to 
subsequently. 
The remaining excavations are all in beds of Triassic age. 
The first of these (4) lies some fifteen yards north of the 
