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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 Lyme Regis
At Church Cliffs, Lyme Regis, 26m of Blue Lias are well exposed. At Black Ven, 25m of shale's with beef often slips down in front of the blue lias. For further information on Black Ven, see the Charmouth Section. For further information on West of Church Cliffs, see Chippel Bay.
At the top of the Blue Lias, the Table Ledge. Ammonites can be found in this bed. The alternating beds of soft clays and hard limestone below this makes the cliffs extremely unstable and care should be taken at all times.
Blue Lias at Church Cliffs, Lyme Regis
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