In tk 



ill. 





^gated i 





a 



^Ititui 

 The « 



and seem 



f . ; 



of the Ml 



Bj including 

 e great mi, 



18, it is 



( i u arried k 



le rock. I: 

 > calcinatio: 



of the rod 



: G eologici 



bituiDin* 

 fill Quart! 



with * 



, the # 



: 



or, an 



^ 



0" 



purp 



0#' 



c 



d 



<# 



OOLITE LIMESTONES. 



75 



This bed, eight feet in thickness, overlies the freestone 



ds of Portland stos 

 cliffs at Tilly- Whim. 

 {Ostrea solitaria) cemented together by an infiltration of 



f\ f\ A £*\ ^* y*V ^v -^ -« j— * —^ **_ — w J J _ 



beds of Portland stone which were formerly worked in the Ga11ery - 



It consists of a mass of oyster shells Wall " case 45 



calcareous matter. 

 43. 



afield 



lower beds of the Great Oolite, and quarried for roofing- 

 slates. (See Nos. 4 and 62 .)_ Stonesfield, Oxon. 



44— Inferior oolite, Oolitic limestone, "to ft lar^e 

 extent composed of shells, chiefly in a fragmentary state, 

 cemented by oolitic carbonate of lime." " 

 near Cheltenham, Gloucestershire. 



This " shelly freestone bed" occurs in the 'middle divi 



Hill 



ry case t sion of the Inferior Oolite, which furnishes all the building 



stone afforded by that formation in the district. 



Map 



(See 



Hull.) 

 45. 



merous Rhynconellce and Terebratulce. 



Inferior oolite, Oolitic limestone, containing nu- 



illine Bn» Stroud, Gloucestershire. 



Hi 



near 



46. 



sils. (< 

 tenham. 



•Inferior oolite, Oolitic Limestone, containing fos- 



) 



Hi 



Chel- 



" The upper freestone is twenty-eight feet thick at Leck- 

 hampton Hill, and consists of regularly stratified oolite, 

 compact, and not so highly fossiliferous as the remaining 



]t° f tlie Inferior 0olite series." (Hull, p. 39.) 



Great or bath oolite, Oolitic limestone, contain- 



47- 



ing fossils. 



Stinchcombe, near Stroud, Gloucestershire. 



47a— Great or Bath oolite, fossiliferous oolitic 

 limestone.—Box Tunnel, Great Western Railway. 



AO ^ Portland stone, bituminous oolitic limestone, 

 containing numerous casts of fossils, from the "roach" bed 

 of Portland stone— Portland Isle, Dorset. 



This bed underlies the "cap" and " dirt" beds, and is the 

 uppermost stone quarried. Its 



three to four feet. 



(* 



average thickness is from 

 details in reference to 





