2l6 



PROCEEDINGS COTTESWOLD CLUB 



1911 



Thickness in feet ins. 

 siliceous, 





'2.' Plant-bed equivalent. Limestone 

 weathering flaggy . . 



Limestones, very siliceous, with a particularly 

 .shelly-bed (comparable with a similar bed 

 in sections 12, 17, 22, 28 and 33) at 2 to 3 

 feet down. .At the south-eastern end of 

 the quarry, these beds have been reduced 

 to a white sand, in which the " skelly-bed " 

 is conspicuous as a yellower band^ 



Limestones, more massive, with oysters very a- 

 bundant (especially in the top-bed) and 

 noticeable 



Conglomerate-Bed, with well-rolled pebbles of 

 oolite (some of them bored and encrusted 

 with oysters and Serpulag) at 6 feet down. 

 -Associated with the pebbles are waterworn 

 oysters, Lima Pcaydiijormis' and echinoid- 

 , radioles 



13 to 18. Limestones : .seen 



The principal non-sequence in the Swerford Quarry occurs 

 at the same horizon as that at Sharp's Hill, that is, immediately 

 below bed 6. The Exelissa-lAvaesione is readily-recognised, 

 being identical, as regards faunal and lithic characters, with its 

 equivalent at Sharp's Hill. 



The following are notes on sections of minor importance : 



Quarry ii. — In this old circular quarry there are traces of black 

 clay (.'' bed 6) and of the flaggy limestone, bed 2. 



Quarry 12. — In this quarry there is seen, in descending order, the 

 flaggy limestone (bed 2) ; yellow sand and sandy rock (with a 

 4-inch " shelly-bed," full of Trigonice, at 2 feet from the top) ; and 

 then massive limestones. 



Quarry 13. — This quarry is in Chipping-Norton Limestone. 



Quarry 14. — This section is now quite overgrown ; but Mr Walford^ 

 observed traces of black clay on top of the limestone. 



Quarry 17. — In this quarry a 12-foot face of Chipping-Norton 

 Limestone is seen, with the " shelly-bed " (which contains speci- 

 mens of Isaslvcea, Astarte, Tvigonia, etc.) about the middle. 



Quarry 18. — This quarry is in similar beds to the preceding (17). 



Quarry 19. — Here slightly higher beds are exposed. They com- 

 prise four beds of limestone (with OstrecB) with intervening " sand- 

 beds," the top one of which is more marly than the others, and full 

 of Nerincsce. 



Quarry 20. — In this quarry there is a marl, rich in Nerintsee, simi- 

 lar to the NerincBa-M.diT\ in quarry 19 ; but in this case it occurs in 

 a marl and " sand " — the whole deposit being not unlike that 

 which is numbered 3 in the Hook-Norton Railway-Cutting Section. 



1 These numbers correspond to those used in dealing with the Swerford, Trigonia-signata- and 

 Hook-Norton Beds in the Hook-Norton Railway-cutting. 



2 In fissures in this limestone were observed, in places, little black concretions simileir to 

 those seen in a quarry near Lower Swell, near Stow-on-the-Wold {vide Proc. Cotteswold Nat. F.C., 

 vol. xvi., pt. I (1907), pp. 24 and 25). 



3 In this paper a query refers to the word it precedes. 



4 Quart. Journ. Geol. Soc, vol. xxxix. (1883), p. 232. 



