THE MOORLAND DISTRICT. 
5 
of the next hilly district, at Hambleton end, twelve hundred and forty- 
six feet above the sea. 
The rocks which compose this moorland district rest upon the red 
marl and sandstone. In the following table, they are numbered accord- 
ing to the general series of Yorkshire strata, pages 2, 3. 
Greatest observed thickness. 
Feet . 
Carboniferous and oolitic 
formation. 
' 6 ' 
200 
30 
i 
500 
60 
10 Impure, sometimes oolitic limestone, full of 
shells. (The cornbrash of geologists.) 
11 Sandstone, shale, ironstone, and coal, with car- 
bonized wood, ferns, and other fossil plants. 
12 Impure, often oolitic limestone, and ironstone, 
with many fossil shells. ( Oolite of Lincolnshire.) 
13 Sandstone, shale, and coal, with carbonized fossil 
plants. 
If Subcalcareous, irony sandstone, often containing 
shells, called dogger. ( Inferior oolite and sand 
of Somersetshire.) 
Lias formation. 
200 
150 
500 
15 Upper lias shale, or alum shale, with nodules of 
argillaceous limestone, ammonites, belemnites, 
&c. ( Blue marl of Northamptonshire.) 
16 Ironstone and sandstone strata, with terebratula?, 
pectines, cardia, aviculae. &c. ( Marlstone of 
Northamptonshire, &c.) 
17 Lower lias shale, with gryphsem, pinnae, plagios- 
tornac, Sec. ( Lias shale of Somersetshire.) 
The lias formation. — The lias formation first appears on the sea- 
coast, under the High Peak, near Robin Hood’s Bay, and continues 
along the shore, with only one exception west of Whitby, to Saltburn 
and Redcar ; being very generally covered, in all the higher cliffs, by 
the lower portions of the carboniferous formation. Its great thickness 
is apparent in the sides of Robin Hood’s Bay, and in the precipices of 
Rockcliff. Inland, it follows the sinuosities of the moorlands above 
Guisborough, by Rosebury Topping, Burton Head, and Carlton Bank, 
towards Hambleton, and extends a considerable space into the low plains 
lying to the west of those hills. It is exposed by denudation along a 
great part of the valley of the Esk, and in many of its tributary branches. 
