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1:250 000 Geological Map
This range of geological maps show the general geology of the area, they come in either folded (for taking on the field), or flat (for wall mounting)
Buy from UKGE |
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1: 50 000 Geological Map
This range of geological maps show the localised geology, they come in either folded (for taking on the field), or flat (for wall mounting)
Buy from UKGE |
Jurassic
GEOGRAPHY AND CLIMATE: Gondwanaland continues to break up, Graywacke,
shale and siliceous sediments formed. Continued mountain building.
mild, moist climates over most of the land.
TERRESTRIAL ANIMAL LIFE: Reptiles dominant with Crocodiles, turtles,
lizards and dinosaurs. Pterosaurs and Archaeopteryx take to the air.
Mammals begin to diversify. More advanced insects such as flies.
PLANT LIFE: Cycads, ginkos, conifers, ferns and tree ferns.
SEA LIFE: All major invertebrate groups well represented, ammonites and bivalves successful. Marine reptiles, Ichthyosaurs are Plesiosaurs.
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Geological Guide to Ringstead
Ringstead
The low slippages of the Kimmeridge clay shows 5m at the base. From Holworth House, near the car park, Porland and Purbeck beds dip north overlain by Gault with Upper Greensand dipping above at a South East angle. There are around 6.5m of Portland Freestone, 10.4m of Cherty series above, 22m of Portland Sand. A major fault in line with Holworth House has caused the White Stone Band to be 56m of below the top and Blackstone at the shore level. Blocks of Portland Freestone are scattered around the beach along with Chalk increasing towards White Nothe.
Kimmeridge Clay
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