16 



ft. 

 20 



25 



Carboniferous Limestone at the Base. 



1 Red Saudy Marls, sandy at the base especially 



2 Gypsifei-ous series, (fibrous Gypsum,) occurs in string 



like liues and tliia beds at all angles 



3 Series of Marls, having conchoidal fractures . 52 



4 Tliick bedded, red striped, and nodular greenish | 



Marls ) 



f 5 Sandy Marls, in nodular masses, blue, gray, and ) ^ ^ 

 I £i-een in colour ....••' 



4 to 6 

 1 



I 6 Thin band of Argillaceous or Sandy Marlstone, con-) ^ g^^^^ 

 [ taining Lime ....••' 



7 Marls having a green hue, breaking up into small 



nodules (nodular fracture,) and sandy or argillo- 

 arenaceous Shales at the base 



8 Pale grey arenaceous Marls, with Sandstone nodules \ 



and a calcareous matrix; becomes indurated inj ^ ^ 

 places. Passing into the Marls and dark Shales, 

 or Bone Bed series . . . . • 



9 Pale greenish grey,- and yellow conchoidal Marls. ) 



Veined yellow. Hard and crumbling . . ' 



10 Pale brownish grey, Sandy Marl ; indurated . 



11 Ochreous band ...••• 



12 Pale greenish grey, Sandy Marls, weatherings 



whitish, and crumbling with hard concretionaiy I 3 3 

 nodules ...••••' 



13 Dark grey or black Shales, weathering into yellow) ^ ^ 



or white efflorescence ; hard thin bands . ) 



14 Bone Bed (Fish Bed.) Bark grey Crystallim- 



Siliceous Limestone or Grit, in places containing ^ 4 to 6 

 nodules of grey Marl, or argillo-areuaceous ^^, 



masses, re-constructed from Marls below, and 1 ^ 1 to 6 

 highly conglomeratic in places. Saurian and | 

 Fish Remains ..■■■■ ^ 



15 Black ^Aafes,^ thinly laminated; here and there \ 



thin bands of calcareous or arenaceous matter. V 4 

 Fish Scales, &c. 



