part 2] INFERIOR OOLITE OF THE CBEWKEHNE DISTRICT. 1 1 •"> 



6. The Interior Oolite and Contiguous Deposits of the 

 Crewkerne Distkict (Somerset;. By Liksdall Rich- 

 akdsox, F.R.S.E., F.G.S. (Read June 20th, 1917.) 



[Plates XIV-XVL] 



Contexts. „ 



Pago 



I. Introduction 14.") 



II. Subdivisions recognizable in the Inferior Oolite of 



the Crewkerne District 14s 



III. Local Details 153 



IV. Conclusion 170 



V. Bibliography 172 



I. Lnteoduction. 



In this paper I propose to give a detailed description of the 

 Inferior Oolite and contiguous deposits of the Crewkerne district. 

 The extent of this district, for the purpose of the present com- 

 munication, will be observed from the map (tig. 1, p. 146). 



(i) Geographical extent of the Inferior Oolite. — 

 Reference to the Geological Survey Map, Sheet XVIII (Old Series) 

 Avill show (1) that the most extensive tract where the Inferior- 

 Oolite limestones occur, free from overlying rocks, is in the 

 immediate neighbourhood of Crewkerne ; (2) that there are 

 numerous masses well separated from the principal tract ; and 

 (3) that the beds are affected by numerous faults. 



(ii) Previous literature. — Comparatively little information 

 has been published concerning the Inferior Oolite and immediate 

 sub- and superjacent deposits of this district, with the exception 

 of Ham Hill. This locality, famous for its warm-coloured 

 building-stone, attracted considerable attention on the part of 

 Charles Moore, 1 James Buckman, 2 and H. B. Woodward/ 5 



The second author was correct in his local correlations of the 

 Ham-Hill Stone — a conclusion also arrived at by H. B. Woodward 

 — but was incorrect in his correlation with the Cotteswolds ; 

 although his recognition of the Cephalopoda-Bed below the Sands 

 at Midford (near Bath) and around Yeovil, but above the Sands 

 of the Cotteswolds, came nearer to the truth than was imagined. 

 The actual solution arrived at by Mr. S. S. Buckman — published 

 with a descriptive section in 1889 4 — that the Hani-Hill Building- 



1 Proc. Somerset Arch, k Nat. Hist. Soc. vol. xiii (1867) p. 126. 



2 Ibid. vol. xx (1875— pt. for 1874) p. 151; Q.J.G.S. vol. xxxiii (1877) 

 pp. 4-6 ; Proc. Dorset Xat. Hist. & Ant. P. C. vol. i (1877) p. {jS. 



3 Proc. Bath Nat. Hist. & Ant. F. C. vol. vi (1887) p. 184. 



4 Q. J. G. S. vol. xlv (1889) pp. 448-49. 



