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55. Early Cretaceous Environments of the Weald (1996)


by Alastair Ruffell, Andrew Ross & Kevin Taylor

In order for the Guide not to become out-of-date it concentrates on exposures that are likely to remain in their present state for some time, thus some abandoned sites are omitted. The interested geologist will find the locations easily, observe the main features with no trouble, and be able to do this for some years to come.

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Overview of Itineraries


Table of Contents


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Itineraries
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In order for the Guide not to become out-of-date it concentrates on exposures that are likely to remain in their present state for some time, thus some abandoned sites are omitted. The interested geologist will find the locations easily, observe the main features with no trouble, and be able to do this for some years to come.

Itinerary 1 The Hastings Group in the core of the Weald
Five different stops give insight to points of geological interest which are the junction of Lower Tunbridge Wells Sand and Grinstead Clay, the Lower Tunbridge Wells Pebble Bed, the Ardingly Sandstone, succession in the Wadhurst clay, palaeosols, plant fossils, non-marine bivalves, and siderite concretions.
Start Point Philpots Quarry TQ 355 322

Itinerary 2 Coastal sections around Hastings
Three stops reveal fluvial channel sandstones, palaeosols, bone-beds, siderite and sphaerosiderite concretions, saurian footprints, faults, fossil plants, old sea-cliffs, Ashdown Formation/Wadhurst Clay junction, Cliff End sandstone, Tunbridge Wells Sand, and Weald Clay.
Start Point Eastern Coastal Outcrop – Cliff End car park TQ 8890 1327

Itinerary 3 The Weald Clay of the Weald
Three stops feature the Upper and Lower Weald Clay, Clockhouse Sandstone, Large ‘Paludina’ Limestone, gastropods, ostracods, conchostracans, insects, fish, sharks, and conifer twigs.
Start Point Clockhouse Brickworks TQ 173 386

Itinerary 4 Folkestone
Three stops take you to see rotational slumps; rag and hassock, ammonites, the Hythe and Folkestone Formation type locations, the junction between them and associated exotic conglomerate or ‘unconformity facies’, junction between Folkestone Formation and the Gault, phosphate nodule beds and abundant fossils.
Start Point Sandgate Foreshore TR 194 349

Itinerary 5 The South Downs
Eleven major stops (and more minor stops) highlight basal Chalk succession, Upper Greensand, the Hythe Formation, early diagenesis and coarsening-up cyclicity, Sandgate Formation and its junction with the Hythe Formation, smectite clays, Folkestone-Gault junction, Iron Grit, Lower Greensand, Park Lane fossiliferous location, junction of Pulborough Sandrock and Marehill Clay, bivalve fossils, silica and carbonate diagenesis, Fuller’s Earth, shallow marine sedimentary structures, tabular cross-stratification, vertical trace fossils, and clay drapes.
Start Point Cow Gap TV 5955 9563

Itinerary 6 The core of the Weald Anticline around Petersfield
Constant travel between roadside points builds up a knowledge of the Cretaceous succession; viewable are: the Sandgate Formation, Pulborough Sandrock (fossiliferous), Folkestone Formation (marine sands), iron/carstone, Selham Ironshot Sands, and the Hythe Formation.
Start Point Habin River Bridge SU 808 229

Itinerary 7 Haslemere to Godalming
Four locations investigate facies changes from the core of the Weald anticline to Lower Greensand Group: Hythe and Sandgate Formations, Bargate (Beds) Member, fossils and cross-stratification, chert cementation, glauconitic sands, burrow traces.
Start Point Devil’s Punch Bowl SU 900 359

Itinerary 8 The Hog’s Back (Farnham to Dorking)
Three stops showcase Gault-Folkestone Formation junction, Folkestone clay beds, sandwave sedimentology, silica and carbonate cemented Hythe Formation, and Hythe-Sandgate contact.
Start Point Mear’s Pit SU 865 476

Itinerary 9 Albury
Five stops bring you to the Hythe Formation beds and Bargate member with derived phosphatised Jurassic fossils, and the variable lithology of the Folkestone Formation including cross-bedded sands.
Start Point Halfpenny Lane car park TQ 0215 4842

Itinerary 10 Redhill – Bletchingley – Godstone
Seven stops cover the very variable succession, based on the Nutfield type sections, from oldest to youngest. Seen are the Hythe Beds, the Nutfield ‘beds’ and Redhill ‘sands’ in the Sandgate Formation, and the Folkestone Formation.
Start Point Walkingstead Pond TQ 3621 5078

Itinerary 11 The eastern North Downs
Three stops take you to quarries for Kentish Rag with the Hythe Formation exposed, the fossiliferous Rag & Hassock (Hythe Formation), the Sandgate Formation, Fuller’s Earth, and ammonite, brachiopods, and sponges among the fossils.
Start Point Dryhill car park TQ 499 552

Map of Itineraries