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MR. L. RICHARDSON ON A SECTION 



[Aug. 1903, 



30. On a Section at Cowley, near Cheltenham, and its Bearing 

 upon the Interpretation of the Bajocian Denudation. By 

 Linsdall Richardson, Esq., F.G.S. (Bead May 13th, 1903.) 



To a paper communicated to this Society and published in vol. lvii 

 (1901) p. 126 of the Quarterly Journal, Mr. S. S. Buckman, F.G.S., 

 appended a map (pi. vi) showing the area upon which the Upper 

 Tricfonia-Giit was deposited. This map was corrected up to April 

 1900. 



During a somewhat detailed investigation of the Inferior Oolite 

 of the Cheltenham district — the results of which on the whole 

 testify to the extreme accuracy of Mr. Buckmans work — I noticed 

 a section exposed in a quarry about half a mile south-west of the 

 village of Cowley, and at the north-western corner of the wood 

 known as Cowley Wood. On Mr. Buckman's map this quarry 

 would be represented as one-eighth of an inch due north of the 

 1 in Elkston. According to that author, we ought to have no 



Map of the Bajocian Denudation, showing the area of the different 

 beds upon which the Upper Trigonia-GVU was deposited. 



' intervening beds '* present here : in other words, the Upper 

 Trigonia-Gnt should have been seen to rest directly, and non- 

 sequentially, upon the Upper Freestone. Thus the evidence afforded 

 would appear (at first sight) to point to a serious flaw in the 

 mapping of the geographical distribution of the beds upon which 

 the Upper Trigonia-Grit rests. The above sketch-map, however, will 



