I. (I) INFERIOR OOLITE-SOUTH COTTESWOLDS II3 



? XXIII. 



XXIV. 



Pea-Grit i 



horizon 



Sequence at Stinchcombe Hill, near Dvrslby— continued 



Thickness in feet inches 



Somewhat iron-stained rubbly de- 

 posit ; Pentacrinus-ossides, Rhyn- 

 chonella eranulata, Upton : 6 to 12 



. o q 



incnes . . • • • • ■ • • • ^ 



Lower 12. Limestone: oolite .. •• •_•_ 00 



Limestone 13. Noticeable deposit of white " sand, 

 made up of oolite granules: no 

 microzoa . . ••..•• ' ' ° 1 



14. Limestone, coarsely-oolitic . . . . o ° 



15. Dark-red deposit of quartz sand : 



no microzoa . . • • ■ • • • 01 



16. Limestone, oolitic, top well-planed : 

 seen . . 



[Unexposed : say . . 

 XXV. 5as5Mm-Beds .. •• •• . •' [estimate 



XXVI. & XXVII. Opaliniforme and Aalensts-Beds \ 



Cephalopod-Bed (Liassic portion) : estimate . . 



Cotteswold Sands : estimate 



Upper- Lias clay : estimate : 30 to 



6 

 13 



7 



13 



230 



40 



(3) Dursley-Selsley-Hill Area. 



The physical feature of the district between Dursley and 

 Uley is the deep, gulf-hke hoUow, out of which rise curious, 

 smooth-sided, grass-clothed hills, of which Downham Hill 

 (" Warren Hill " on the Geological Survey-Map) and Peaked 

 Down are conical, and Cam Long Down is noticeably flat- 

 topped (Plate XVH). These outlying masses are the product 

 of ordinary subaerial denudation, assisted by the " he " of the 

 rocks. They are based upon the easily-located Marlstone, to 

 which succeeds the Upper-Lias clays and sands— together 

 some 270 feet thick. 



Ascending Cam Long Down by the track which passes 

 through a deep "cutting in the Cotteswold Sands, where that 

 track emerges at the top of the Common, there is on the left an 

 exposure of the DumoHiena-Stmckntanni-Beds of the Cephalo- 

 pod-Bed, while a little higher up is one in the portion which is 

 of opaliniformis-aalensis date. The Opaliniforme-Bed is re- 

 markable for its large, hard, yeUow-coated granules, which 

 render it readily identifiable. Yet higher up is a quarry in the 

 Lower Limestone. 



