186 
Zhc Carboniferous Ximeetone Series of tbe 
area between Clifton anb Clevebon, 
By S. H. Reynolds, M.A., Sc.D., F.G.S. 
CONTENTS. 
i . — Introduction. 
II. — Relation of the Carboniferous Limestone Series to 
the other Rocks. 
III. — Faults. 
IV. — Description of the Exposures. 
V. — Conclusion. 
I . — Introduction . 
(a) Previous Work. The chief faults and the general 
arrangement of the strata are described in Buckland and 
Conybeare's classical memoir entitled " Observations on the 
South Western Coal District of England." 1 The more im- 
portant exposures were described with lists of fossils by Vaughan 
in his paper on the Carboniferous Limestone of the Bristol 
Area, 2 while additional information concerning the Avon 
Section was given in that on ' ' The Carboniferous Limestone 
Series (Avonian) of the Avon Gorge." 3 One paper by Prof. 
Lloyd Morgan in the Quarterly Journal of the Geological 
Society 4 and three in the Proceedings of the Bristol Naturalists' 
Society 5 refer to this district ; as does a paper in the Geological 
Magazine, 6 by Mr. F. Dixey. The beds are alluded to in the 
following pages under the names applied to them by Vaughan. 
(b) Extent of the Area. — The district described, which has a 
length of about 8h miles, extends from the Avon Gorge at 
Clifton to the Trias-filled valley between Court Hill and Straw- 
berry Hill, Clevedon. The main part of this area is a fairly 
level plateau, generally about a mile wide and with a height 
usually between 425 and 475 feet. The western part forms a 
narrow ridge and its height is less than that of the eastern part. 
1 Trans. Geol. Soc, 2nd ser., Vol. I. (1824), PP- 210-316. 
2QJ.G.S., Vol. I/XL (1905), pp. 181-307. This paper will be referred 
to in the following page as "Bristol paper." 
3 Proc. Bristol Nat. Soc., 4th aer., Vol. I., 2, (1906 issued for 1905), 
pp. 74-168. This paper will be alluded to in the following pages as 
" B.N.S. paper." 
4 Q.J.G.S., Vol. XLL (1885), pp. 146-151. 
5 " Sub-aerial Denudation and the Avon Gorge," n.s., Vol. IV. (1884), 
pp. 171-197 ; "The Millstone Grit at kong Ashton," ibid, pp. 163-165 ; 
"The Portbury and Clapton District," n.s., Vol. V. (1885), pp. 1-16. 
6 N.S. Dec. vi., Vol. II. (1915), pp. 312-316. 
