FAULT IN THE CLIFF WEST OF BRIDPORT HARBOUR. 119 



level viz., that found immediately under the Inferior Oolite, which 

 has here all been removed by denudation. 



Thirty-three yards further to the west the 1.0. can be seen in 

 position, about 2 feet thick. In 1888 Mr. Walker found in a bed 

 of clay about 1J feet thick, immediately above the I.O., a flat 

 variety of Terebratula Phillipsii, also T. decipiens, and Ammonites 

 which have been determined by S. S. Buckman, F.G.S., as 

 Perispinetes sp. and Oppelia fusca. This 1.0. clay occurs at the 

 top of the quarries around Crewkerne and Broadwindsor, and was 

 first noticed by J. F. Walker in his paper on T. Morieri, Geol. 

 Mag. 1878. 



These beds slope down towards the west below the Fuller's 

 Earth, and at a distance of fifty-six yards appear to reach the level 

 of the beach. Near this point the junction of the M.S. and 1.0. 

 consists of a rubbly broken conglomerate, composed of 1.0. 

 cemented together with iron-sand : the pieces appear to vary in size 

 from a cubic foot to the size of coarse gravel, showing that 

 extensive denudation occurred before the deposition of the 

 Parliinsoni zone of the Inferior Oolite. The 1.0. itself is a 

 very hard rock containing masses of iron pyrites, and is of a 

 greenish white colour, due to the iron being chiefly in a state of 

 prot-oxide. 



The greater part of the 1.0. seems to belong to the Parliinsoni 

 zone, as it contains the characteristic fossils T. spheroidalis, 

 T. stephani, A. parkinsoni, Waldheimia carinata, Acantliotliyris 

 spinosa. Some of these fossils are a dark blue colour, having been 

 protected by the clay from oxidation. The top of the cliff above 

 the Fuller's Earth contains brown surface soil, probably derived 

 from the decomposition and washing down of Forest Marble. 



Beyond this point the base of the cliff at present shows no trace 

 of either M.S. or I.O., but blocks of these are plentifully strewn 

 along the shore and running out into the sea form the Black 

 Rocks. 



One hundred and sixty yards further west we arrive at another 

 good point of observation. Here bands of stone, ten or more in 



