INFERIOR OOLITE: HIBALDSTOW. 225 
less distinct, being interstratified with even beds of bluish-grey 
limestone, as shown in sections near Wressle Houses, to the N.E. 
of Broughton. 
The total thickness of the Lincolnshire Limestone passed 
through in the boring at Brigg, was estimated at 44 feet by Mr. 
Ussher : there no definite indication of the Lower Estuarine Beds 
was obtained.* (See p. 430.) 
Mr. Ussher notes the following section in a quarry on the north 
side of the turning to Broughton : 
FT. IN. 
Dark brown sandy soil - --20 
^Rubbly oolitic limestone (base of the Hibaldstow Beds) 4 
^Three even beds of grey limestone 3 3 
Pale drab loam - - - 1 6 
Grey limestone - - 1 3 to 6 
Pale brownish, decomposed, shaly 
limestone - - - - 1 
d 
Kirton Beds. 
Hard, even-bedded, dark bluish- 
grey limestone, weathering light 
fl . 
Drab and dark giey loamy clay, 
passing into earthy limestone 
Hard bluish-grey limestones, wea- 
thering to a pale drab colour 
At Scawby an irregular outlier of Hibaldstow Beds appears to 
rest directly on a clay stratum, forming the top of the Kirton 
Beds ; as clay has been dug on the western margin of the outlier 
towards Moor Farm, to clay the fields, which are covered with 
Blown Sand. Near the Roman Road, on either side, west of 
Scawby Vicarage, there are shallow pits showing brown and grey 
clay, and loam. 
The Hibaldstow Beds, which further south appear to be 
represented by grey limestones, were shown to a depth of five feet, 
near Grayingham Warren Farm. The beds (as described by 
Mr. Ussher) consist of fissile cream-coloured limestones with 
oolitic grains irregularly dispersed, resting upon cream-coloured 
and pale buff limestone. The underlying bed appears to be pale 
drab loam : hence the limestones are taken as the base of the 
Hibaldstow Beds. The following fossils were found by Mr. 
Ussher, but they are too poorly preserved for specific determina- 
tion : 
Nerinsea. 
Tsocardia. 
Lima. 
Myacites. 
Acros.alenia. 
Near the Mill, south of Hibaldstow, the Hibaldstow Beds are 
exposed in a quarry to a depth of from 15 to 20 feet ; they consist 
of prfle buff and cream-coloured oolite, in rather thin broken bed?. 
At a mile and a quarter south of Redbourne, Hibaldstow Beds 
are to be seen in pits by the road to Waddingham, and in a quarry 
on the south side of the valley, west of the road ; the beds in this 
quarry comprise partially oolitic, compact, grey limestone?, in 
* Geol. N. Lincolnshire, pp. 71, 72, 211.- 
E 75928. P 
