Weekly and Geddington.
The road from Kettering to Stamford skirts the valley of the Ise upon its north-western escarpment ; which presents, beyond Weekly, the same succession of beds as before, but which in the interval have been somewhat disturbed by a small fault, having a south-west and north-east direction: —
Great Oolite Limestone.
Upper Estuarine.
LINCOLNSHIRE LIMESTONE.
Lower Estuarine,
Northampton Sand.
Ferruginous Beds,
Upper Lias Clay.
A little further on, at a short distance south of Geddington, is a quarry in the Lincolnshire Limestone *. The Upper Estuarine Clay is just seen coming in at the top ; below this, is a thickness of 15 feet of Lincolnshire Limestone (the lowest bed but one consisting of the hard Nerinoea zone, as at Glendon) ; and at bottom, a reddish sand, representing the Lower Estuarine Series.
Section at the South Geddington Quarry.
1. Upper Estuarine Clay (just apparent).
2. Lincolnshire Limestone — ft. in.
a. Marly oolite, in thin bands, and much shattered, about 6 0
b. Soft marly limestone, containing few shells — burnt for lime 3 0
c. Hard sub-crystalline bed, blue-hearted, in three or four courses, containing numerous Nerinoea cingenda, N. triplicata, &c. — the fossils standing out in relief upon the joint surfaces, from the action of water charged with carbonic acid 3 0
d. Shaly soft bed — "very rotten" — about 3
3. Reddish sand — Lower Estuarine.
The village of Geddington is situated upon the Upper Lias Clay of the Ise valley ; and is celebrated for its beautiful Cross, the most elegant of the three crosses which remain of the twelve erected in a.d. 1290, by Edward I., in memory of his Queen, Eleanor of Castile. It was built over a spring of ancient celebrity. Its material is Barnack Rag, and it is nearly as perfect as when erected, never having been restored.
Just north of Geddington, is Rippen's quarry in the Lincolnshire Limestone. The section is of the same character as that in the quarry south of Geddington ; but the limestone beds have thickened to about 20 feet.
Fossils found in the two quarries : —
Hinnites abjectus, Phil. sp.
Pecten personatus, Goldf.
Pinna cuneata, Phil.
Pteroperna pygmaea, Mor. & Lyc.
Modiola Sowerbyana, d' Orb.
Trigonia hemisphaerica, Lycett.
Unicardium impressum, Mor. & Lyc.
Natica Leckhamptonensis, Lycett.
Nerinaea cingenda, Bronn.
— triplicata, Bronn.
Pygaster semisulcatus, Phil, ("petrified mushrooms " of the pitmen).
Pecopteris polypodioides, Lindley.
- Up to this point, the Geological Survey Map, Quarter-sheet LII, N.W.,
revised by Mr. Judd, has served to supplement my personal observations.
