Geology around Newbald.
Logged section of Sands Top Quarry (6/5/02) - (starting at top)
90 cm brown/pale blue mottles silty clay
75cm sand - dark orange at base lighter at top
1cm impersistant blue clay
47cm orange/yellow sands with bands of 'iron pan'
32cm grey/blue silty clay with orange sandy motling
ca. 30-40 cm brown/orange slty sands with bands of 'iron pan' (needs re-measuring)
erosion surface on top of the oolite
295cm brown oolite in 10-30cm beds
thin clay band
70cm oolite in 10-30cm beds
thin clay band
150cm oolite in 10-30cm beds
bedding plane
5 to 15cm oolitic clay band 'iron pan' at top in places
bedding plane
30-90cm hard blue hearted oolite
thin clay layer
bedding plane
33cm blue hearted shelly oolite
bedding plane
50cm hard buff oolite, blue hearted
thin clay layer
bedding plane
50cm buff hard oolite
thin clay layer
bedding plane
50cm brown oolite
45cm cross bedded oolite
bedding plane
60cm (up to) cross bedded oolite
30cm (approx.) hard coarse grained brown shelly oolite
>80cm hard cream oolite (may be blue hearted) - base not seen.
Geology of the South Cave area (from Bisat, Neale & Penny 1962):-
Oxford Clay - light to dark clays
Kellaways Rock 10ft
Kellaways Sands 30ft (with two oyster bands packed with Gryphea bilobata and large doggers)
Upper Esturine Series 15 ft - variable group of sands and clays
Cave Oolite consiting of the following beds: I- compact cream oolite 3 ft, H- grey oolite with 2 marly partings 2ft 8 ins, G coarse grained blue-hearted hard shelly oolite 2 ft, F- yellow shell sand 11 ins, E- cream shelly oolite 3ft, D- orange shell sand 2 ins, C- cream cross bedded shelly oolite (sometimes blue-hearted) 7ft, B- blue hard limestone 1 ft 3 ins, A- rubbly oolites 2ft.
Basement Beds - dark shales 4 to 6 ft
Hydraulic Limestone - pale grey hard limestone 2 ft 6 ins
Lower Esturine Series - clays and yellow sandy shales 6ft
Upper Lias - dark shales.
[note: do not assume that all these beds are present in the Newbald area!]
Bisat W S, Neale JW and L F Penny,1962. Geology around the Uniersity Towns: Hull. Geologists' Association, London.
Brasier M D & C J 1978, Littoral and fluviatile facies in the 'Kellaways Beds' on the Market Weighton swell. Proceedings of the Yorkshire Geological Society 42, 1-20.
De Boer G, J W Neale & L F Penny, 1958. A Guide to the geology of the area between Market Weighton and the Humber. Proceedings of the Yorkshire Geological Society 30, 197-227.
Gaunt G D, Fletcher T P & Wood C J 1992. Geology of the country around Kingston Upon Hull and Brigg. Memoir for 1:50000 geological sheets 80 and 89 (England and Wales). H.M.S.O., London, ix + 192 pp. 6 pl.
Horne M, 1984. A short walk near North Newbald. Humberside Geologist 4, 17-18.
Horne M & F Whitham, 1988. North Newbald Quarry revisited. Humberside Geologist 6, 20-23.
Walker K G 1972. The Stratigraphy and bivalve fauna of the Kellaways Beds (Callovian) around South Cave and Newbald, East Ypskhire. Proceedings of the Yorkshire Geological Society 39, 108-137, pl 7-8.
Whitham F, 1984. North Newbald Quarry - Humberside Geologist 4, 14-16.
Whitham F, 1984. South Newbald Quarry. Humberside Geologist 4, 4 -5.
Whitham F, 1986. Hyperlioceras rudidiscites at North Newbald. Humberside Geologist 5,13-14.
Whitham F 1992. The geology and fauna of the South Cave Station Quarry. Humberside Geologist 10, 54-58.
Mike Horne (Hull University)