MR. L. RICHARDSON ON THE RH2ETIC OF [Feb. I9II,. 



(C) The Stone-Easton Outlier. 



Where the Rhsetic impinges on the Palaeozoic rocks, its deposits 

 frequently become conglomeratic, and in this neighbourhood sand- 

 stones are more in evidence than usual. 



The principal sections in the district now open are at the 

 Emborough Eullers'-Earth Works. They have been described by 

 Prof. C. Lloyd Morgan & Prof. S. H. Eeynolds l ; but, as one of 

 the primary objects of this paper is to bring the various sections 

 into line, it is impossible to avoid some amount of recapitulation. 



Referring to the sketch-map given by these authors, in exposures 

 9 & 10 the Tea-green Marls, which are worked for Fullers' Earth, are 

 seen overlain by sandstone. The bottom-portion of this sandstone,, 

 which is conglomeratic and contains fish-scales, rests, according to 

 Prof. Lloyd Morgan & Prof. Reynolds, upon an eroded surface 

 of the Tea-green Marls. Section 12 of these authors affords 

 the best exposition of the beds : in it the top-bed is a sandstone, of 

 which a thickness of 2| feet is visible. This sandstone-bed floors, 

 the contiguous section, where it is overlain by 3 feet of compact 

 pale or mottled clay : this is doubtless on the horizon of Beds 2 to 4 

 of the Chilcompton section. Prof. Lloyd Morgan & Prof. Reynolds 

 did not notice any Cotham Marble ; but it occurs in the outlier and 

 should come, of course, between the ' compact or mottled clay ' and 

 the Langport Reds or White Lias proper. 



Sequence at the Emborough Fullers'-Earth Works. 

 Thickness in feet inches. 



(In pieces on the surface 

 of the fields.) 



[? Clay, tough, black 5 



1. Cotham Marble 7] 



(In Section 12 of Lloyd 

 Morgan & Reynolds.) 



tf ft 

 o pq 



offl 

 Q 



2 to ( Marl, greenish-yellow : 

 4>.\ 3 feet ? 



3 10 



o 

 P3 



10 



r 5« ( Sandstone, grey, micaceous. 

 & j (In Section 12 of LL.M.&R.) 



b. (. Sandstone : estimate 4 



6. Shale, pale-grey, marly 



H (Sandstone, with layer of" 



l-EJ 



Clsocyprina ewaldi 

 q) (Born.), Pteria 

 gl contorta (Portl.), 



V. Pleuromya sp. 

 o C Usual vertebrate-- 



\ ' beef ' on the top 



Shales, black, weathering grey. 

 ( Sandstone, yellowish-brown : 



( to 1 inch 



Shale, black : average 



Sandstone 



Shales, black 1 



Sandstone, laminated some-") 

 times, at others conglomer- (q 

 atic, containing small pebbles C 

 of Carboniferous Limestone. J 



Sandstone, false-bedded 1 



C The B o n e - B e d — The coarse ") q 

 \ conglomeratic base to Bed 14 ) 



0^ 



{Crowded with the 

 usual vertebrate- 

 remains, notably 

 Splicer odus and 

 Lepidotus. 

 5 



5 C Usual vertebrate- 

 < remains. 



10 



KEUPER. 



Tea-green Marls 10 



Red Marls. 



1 JProc. Bristol Nat. Soc. ser. 3, vol. ix (1899-1901) pp. 109-17. 



