194 DAVIS: SECTIONS IX THE LTASSIC AND OOLITIC ROCKS OF YORKSHIRE. 
named from its development at Eller Beck, near Goathland. It is of 
marine origin, and may be traced at the top of the undercliff between 
Hayburn Wyke and Blea Wyke (fig. 4), and thence after following 
the coast line turning inland and abutting against the fault. The 
beds are about 17 feet thick, and consist of the following strata : — 
Eller Beck Beds at Peak. 
Ft. Ins. 
Sandstone, close-grained in upper part and flaggy, 
with streaks of dense ironstone near the base ... 12 0 
Thin Band of Ironstone, with Xucula, Astarte 
minima, in great numbers ; also Gervillia acuta, 
Area sp. Corbula, Tancredia, and Littorina .. 0 3 
Shales, well-bedded and ferruginous ... ... 3 0 
Thin band of ironstone, unfossiliferous ... ... 0 3 
Shales, similar to the above ... ... ... 16 
Ironstone ... ... ... ... 0 3 
Between the Eller Beck marine beds and the marine Millepore 
Bed, the Estuarine Series consists mainly of two parts, the lower being 
mostly shales, and the upper consisting of a massive false-bedded 
ferruginous sandstone GO feet thick. At Peak these beds are for the 
most part hidden by talus from the cliffs above. 
The Millepore Beds, about 12 feet in thickness, may be seen at 
the top of the cliff at the gardens of Peak Hall, from this point they 
take a direction at right angles to the cliff until they are stopped at 
the fault, From Peak Hall a footpath leads down the cliff towards 
Foxholes, and the following section is exposed : — 
Ft. 
Ins. 
Hard yellow sandstone 
5 
0 
Soft yellow calcareous sandstone, with fossils 
0 
2 
Hard ferruginous band, many small fossils 
0 
4 
Flaggy sandstone, speckled white 
1 
6 
Flaggy sandstone 
3 
0 
Dogger band, speckled white ... 
0 
6 
Soft white sandstone, with few casts of fossils 
2 
0 
Total ... 
12 
6 
