18 



ME. L. EICH.AEDSON ON THE EIOETTC OF [Feb. I9II, 



27. J 



[Blue Anchor Point.] Thickness in feet inches 



f 'The Clough.' Limestone, hard,~"| 



grey-blue, nodular, with calcite in 

 central cavities attached to the | 

 nether side of a thin black shelly J>0 

 limestone, which in its turn is I 

 separated by shaly matter from a | 



'bone-bed' limestone J 



Shales, bbick, laminated 1 



( Sandstone, soft, light-grey, partly 

 I pyritic : a ' bone-bed ' 



fAcrodus minimus, Gyro~ 

 I lepis alberti, Hybodus 

 •{ minor, saurian rib, Nucu- 

 | lana titei (Moore), in the 

 ^ uppermost layer. 



28 



(1) 



29. 





31. 



32. 



}° 



Comminuted fish-remains. 



< (2) Shales, black 



(. (3) Sandstone, thin layer of earthy ... 

 p Shales, blackish-green, marly, withal 

 pale greenish-grey nodules (here 

 very conspicuous) near the base, >>1 

 and some thin gritty limestone- 

 layers near the top J 



Sandstone, in irregular masses 



Shale, dark-green and black, marly. 



$ Sandstone, whitish, in very irregu- ") n 



lar masses, spangles of white mica ) 



Shales, black, marly 



( Limestone, very pale-grey, rather ") ft 



}_ crystalline ) 



(3) Shales, black 1 



(1) 

 (2) 



(3){ 



(1) 



(2) 



33. 



(1) Shelly bed, limestone in places 



(2) Shale, black 



C Basal Bone- Bed, resting upon") 



(3) < the Sully marlstone and containing >■ 

 (. derived lumps thereof ) 



0* 

 1 



C Pteria contorta, Isocy- 

 < prina sp., Pleurophorus 

 (. elongatus. 



fAcrodus minimus, Gyro- 

 j lepis alberti, Saurich- 

 j thys acuminatus Ag., 

 Hybodus minor, Sargo- 

 don tomicus Plieninger, 

 Lepidotus (?) teeth,Pteria 

 contorta. 



46 2k 



ft 



10. 



Blue Anchor Point (pars). 



Two massive beds of marlstone, greyish- 



green,but weathering yellow and parted 



by a thin layer of darker and less com- 

 pact marl : estimated at 



Marl, laminated, yellowish-brown : esti- ") ft ^ 



matedat ) u b 



Marls, greenish-grey, with indurated | 2 „ 



zones ) 



Marls, black, shaly, more indurated ), q 



above ) 



Marlstone, weathering yellow ish 8 



Marl, dark, shaly 3 



Marlstone, grey, weathering yellow 1 4 



Marl, soft, dark, shaly, with a 9-inch ") - ~ 



band of marlstone about the centre ... ) 



Marlstone, greyish 1 5 (Fish-remains (scales and 



Marl, soft 1 (. small coprolites) . 



13 1 



Hard grey marl, with a dark zone at *) , 

 the base _ ) 



Marls, soft, black predominating in the 7 9 

 lower half and yellow in the upper . . . ) 



A series of layers of gj^psum inter- 

 stratified in very dark greenish-grey 

 marls, with a particularly massive layer 

 at the base. The gypsum is pink and 

 white, fibrous, and occurs mainly in 

 horizontal layers 



10 



^7 



