206 THE GEOLOGICAL STRUCTURE OF THE 



ft. ins. ft. ins. 

 ably Grammoceras spp., and frag- 

 ments of D»;norfie7-i(e,mostly showing 

 a matrix of bluish-grey sandstone ... 6 



2 3 



DuMORTiEKL?:. 4. Compact, bluish-grey, argillaceous 

 sandstone in two beds. It contains 

 fragments of 2 or 3 species of coarsely 

 and finely costate Dumortierice. Ex- 

 posed about 1 ft. 

 Maes Knoll. 70 yards east of Spinney 

 below the Tump. 



5. Clay and sandstones about 60 



DisPANSi. 6. Grey argillaceous stone with scattered 



iron-grains. Belemnites Oil 



Striatuli ? 7. Purplish-brown to drab, speckled stone 

 with belemnites, shell sections, am- 

 monites with a drab matrix 7 



Variabilis. 8. Upper bed of blue rock with brown 



iron grains and ferruginous lumps .. 5 

 Lower blue rock, scattered iron-grains, 

 ferruginous lumps, and lumps of a 



dense pink stone 2 



7 



Spixati. 9. " Marlstone Rock." Very dense rock, 

 a ferruginous oolite. Pseudopecten 

 *■ (equivalvis. The lower four inches of 

 this bed is a grey sandy rock, while 

 the top four inches is richly ironshot, 

 with red and yellow tints 1 7 



Margaritati ? 10. Grey, thinly laminated, but massive 

 unfossiliferous sandstone, found ap- 

 parently at its base 1 6 



Immediately above the Dumo7'tieria-heds lies the remark- 

 able conglomerate bed formed during the Garantimiie hemera 

 — specimens of Parkinsonia cf. Garantiana having been 

 found in it. Here, then, is a case of very noticeable non- 

 sequential deposition, denudation being presumably the 

 agency which, has removed whatever strata may have been 

 deposited ; and in all probability, considering the short 



