240 ft. 



Thickness in 

 ft. in. 



llSft.X 



J), \ 

 375 ft. ^ 



Do 



184 ft, 



about 100 O:^ 



about 140 



L 



125 



about 135 o'<i 



L 



about 40 



about 200 



3 







about 42 







7 







22 







27 



10 6 



2 6 



Litlwlogi/. 



Massive grej^ limestone, partlj' 

 dolomitized, with thin and 

 widel}' spaced partings of 

 red shale and abundant 

 ^ Lithostrotion martini. 

 Massive limestones, veiy ill-ex- 

 posed in the main section on 

 the right bank, but mainly 

 foraminiferal. Some oolite 

 in the lower part. Highest 

 beds ver}^ fossiliferous, and 

 showing well-marked bands 

 of Semijiula Pisolite, 

 f Massive limestone, occasionall3' 

 I oolitic, alternating with 

 <J ' Concretionary ' (algal) and 

 I Seminula ]3ands. Upper 

 1^ beds with shaly partings, 

 f Gre}'' limestone, chieHj' massive 

 I and thicklj' bedded, with 

 foraminifera and corals ; 

 occasionally oolitic. Several 

 prominent bands of pseudo- 

 breccia. 

 rMore thinly -bedded limestone, 

 < often reddish, with rubblj' 

 (_ and shaly bands and partings. 

 f'Limestone, in the main coarsel}- 

 I oolitic and massive, but in- 

 cluding some non-oolitic 

 I bands associated (especially 

 <; in the upper part) with 

 massive red grits and thick 

 shales. Some bands, both 

 oolitic and non-oolitic, show 

 1^ pseudobrecciation. 



Grit with quartz-pebbles. 

 rGrey limestone, chieil3' com- 

 \ pact but sometimes pseudo- 

 1 brecciated : corals and fora- 

 C minifera abundant. 



Coarse oolite. 

 rGrey limestone as above, but 

 } with a narrow band of coarse 

 (. oolite. 



C Oolitic limestone, thickly bed- 

 } ded, but with strong rubblj' 

 (_ partings. 



( Grey limestone as above, upper 

 I part highly fossilifero^is. 

 C Coarse red oolite, top bed 

 I rubbly. 



r 



Topographical details, etc. 



The lower of the two divisions 

 included in S2(c) forms the 

 middle part of the wall at 

 the southern end of the Great 

 Quarry, the upper is ill-exposed 

 above the wooded slope farther 

 south. The highest beds are 

 splendidl}' seen in the section 

 ^ as repeated by the fault and 

 in the app:"oach to the Sus- 

 pension 13ridge. 



^Third 3IodioIa Phase. 

 I 

 The ' Concretionary Beds ' 83(0?) 

 are ill-exposed in the southern 

 part of the wooded slope south 

 J of the Great Quarrv. 



Seen in the northern part of the 



railway-cutting south of the 



J> New Zigzag level-crossing 



and in the roadside exposure 



north of Point Villa. 



Seen in the southern part of the 

 railway-cutting south of the 

 New Zigzag level - crossing, 

 and in the lower part of the 

 Bridge- Vallev Road section. 



Red grits and shales ill- 

 about 70 <{ expo^ed, and extending to 

 the Observatory-Hill Fault, 



Well-exposed bj' the roadside 

 between the bottom of Bridge- 

 Valley Road and Point Villa, 

 > in the upper portion of the 

 Bridge-Valley Road section, 

 and in part in Rownham 

 Quarry 



J 



"^ The base of the upper gritty and 

 shaly series is seen in the 

 road-section between the bot- 

 tom of Bridge-Valley Road 

 y and Point Villa, and in the 

 Bridge- Valley Road section. 

 The highest beds are seen 

 below the Observatory-Hill 



J Fault. 



[Total thickness = about 2543 feet.] 



