LOWER LIAS : DUNRAVEN, 
107 
continuously from this point, as a little further north there is 
a small fault or joggle, the precise throw o f which it is difficult 
to determine, but it appears not to exceed about 4 feet on the 
further side towards Dunraven. It suffices however to carry the 
Carboniferous Limestone out of sight. 
From this point we are enabled again to trace the beds upwards 
from the Sutton Beds to the ordinary Lower Lias ; for although 
there is another fault that traverses the cliffs in an oblique 
direction, with a downthrow of about 8 or 9 feet on the west or 
south-west, yet we are at no loss in comparing the beds on either 
side of this displacement. The beds adjoining the fault present 
a massive and wall-like appearance, and some of the higher 
layers of the Southerndown Series present, where weathered, 
a curiously ragged, cavernous, and crinkly appearance, standing 
out in marked contrast from the softer earthy limestones and 
marls of the Lower Lias above them. (See Fig. 45, p. 101.) 
Southerndown 
Series. 
Section of the Cliffs from below the Flag Staff, Dunraven, to the 
cavern near the Witches Point. 
fHard limestones, much jointed, and dark 
bluish-grey and blue-black shales, with 
Gryphcua arcuata, Pholadomya ambiyua, P. 
glabra. 
Zone of Ammonites} Irregular and nodular pale earthy limestones, 
Bucldandi, &c. } dark shales and marls, with Ammonites 
angulatus, Gasteropods, Gryphcea arcuata, 
Lima gigantea, Unicardium cardioides. 
(Here and there we find bands crowded 
with G. arcuata.} 
fHard and somewhat irregular bluish-grey 
limestones, with sparry veins, shaly beds, 
fucoidal markings, and occasional frag- 
ments of Carboniferous Limestone. Lima 
gigantea, L. tuberculata, Ostrea - -59 
Hard and irregular grey limestones with little 
or no shale, with sparry veins, and occa- 
sional fragments of Carboniferous Lime- 
stone - .40 
Compact grey limestones, with shaly layers : 
conglomeratic in places. Ostrea liassica, 0. 
niulticostata,Lima gigantea, spines of Echini, 
lignite - 4 
Hard compact pale-grey and bluish-grey 
limestones passing in places into a bed like 
Sutton Stone. Pecten suttonensis, Ostrea 
multicostata - . -60 
Hard bluish-grey and compact limestones, 
conglomeratic and brecciated: massive 
beds. Pecten suttonensis - - / 6 
Compact bluish-grey limestones, wedge- 
bedded in places - - . -57 
Compact blue limestones, brecciated in places; 
passing down infco pale-grey brecciated 
limestone, like Sutton Stone. Shelly in 
places - 5 
Buff, pale grey, and bluish-grey limestones, 
passing down into white conglomerate About 15 
Sutton Series. 
