r 



ThicTcness in 



ft. in,\ 



about 150 ! 

 about 35 



285 ft. 



20 ft. 



134 ft. 



Z2 



182 ft. 



60 ft. 



Ci 

 185 ft. 



about 75 



about 25 



L t '^ 



■[ about 20 Ol-j 



28 <! 



LWiology. 



Section obscured or bricked up. 

 C Thinlj'-bedded limestone, with 

 X subordinate shale. 

 Shale, with subordinate lime- 

 stone-bands. 

 r Thickly-bedded highly crinoidal 

 \ and bracbiopodal limestone, 

 1 with thin shah' partings. 

 L Many fossils siliciiied. 

 Massive crinoidal and bracbio- 

 podal limestone. Many 

 fossils silicified. 

 Massive or thinly-bedded cri- 

 noidal and bracbiopodal lime- 

 stone parth' dolomitized. 

 Some silicification of the 

 fossils in the lower part. 



7 



34 



65 < 



165 



17 



60 



Laminosa 



Dolomite, 



about 95 



Caninia 



Oolite, 



about 90 



( Massive, often liighlj' fossili- 

 X ferous, crinoidal limestone. 

 ^Thickly-bedded dolomite, be- 

 3 coming more fossiliferous 

 1 near the top where a band of 

 V. chert occurs. 

 Massive, highly fossiliferous, 

 crinoidal and bracbiopodal 

 limestone. Matrix largely 

 I dolomitized. 



^ . . . 



r Massive, higlilv' fossiliferous, 



3 crinoidal limestone (' petit 



1 granit '). Matrix largely- 



L dolomitized. 



f" Fish-Beds,' massive, highlj- 



I fossiliferous, ci'inoidal lime- 



J stone (' petit granit ') with 



"^ teeth and spines of fishes. 



Matrix larselv dolomitized. 



Massive, highl.y fossiliferous, 



crinoidal limestone (' petit 



granit ') with abundant 



Zaphrentids, ^latrix largely 



dolomitized. 



fSomewhat thickly bedded, 



I thoroughh' dolomitized, cri- 



j noidal limestone. At the 



1 top is the Suboolite-Bed, 



1 containing Chonetes and 



l^ Orthotetes. 



Co 



235 ft. 



Massive, tbickh'-bedded, white 

 oolite, with few fossils. 



r Thinly-bedded shales and dolo- 

 38 j ■< mites, with a brown algal 

 (. band at the top. 

 r Thinly-bedded shales and dolo- 

 ■< mites, with a band of non- 

 (. dolomitized oolite at the top. 

 Thinl3'-bedded shales and dolo- 

 mites : the upper beds in- 

 cluding calcite-mudstones 

 and alaral lavers. 



87 



110 



Topographical details, etc. 



■) Poorlv" exposed in the railway- 

 ) cutting. 



7 Much overgrown, very poorly ex- 



) posed in the railway-cutting. 



S Fairly well exposed in the 



I northern part of Press's 



r Quarry and in the adjacent 



J railwaj'-cutting. 



■^ This band is shifted by the 



>■ thrust -fault in Press's 



3 Quarry. 



The prominent bedding-plane 



immediatelj- south of Press's 



Quarrj' marks the top of the 



band. Near the top of this 



band is a layer showing patch}' 



dolomitization. 



The chert-band crops out above 

 the prominent irregular bed- 

 ding-plane at the northern end 

 of Black Rock Quarry. 



The top is taken at the pro- 

 minent bedding-plane by the 

 path leading to the ' cave ' 

 (tunnel - opening) in Black 

 Rock Quarry. 



Forms the main part of Black 

 Rock Quarrj'. Lowest 25 feet 

 much obscured by talus. 



The levels from which the fish- 

 remains were obtained are 

 three prominent bedding- 

 planes respectively at the top, 

 bottom, and middle of this 

 band. 



Well seen at the northei'n end 

 of Black Rock Quarry and in 

 the riverside exposure. 



Lower beds seen at the southern 

 end of Black Rock Quarry, 

 the upper in the northern 

 part of Gull}' Quarry and in 

 the riverside exposure. 



Well seen in Gully Quarry and 

 b}' the road and river. 



1" 



Thesebeds,the 'Cf/??//}/« Dolo- 

 mite ' of Vaughau, are seen 

 Y in the railway-cutting be- 

 tween the Gully Quarry and 

 the Great Quarry. 



