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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 West Weare
West Weare Cliff has been a dumping site for quarry material on the island, most of the Kimmeridge formation is covered up. Originally, the Kimmeridge Clay would have been at the base of the cliff.
Above this is the Portland Sand, with the Upper and Lower Blacknore Beds, Portland Clay, and West Weare Sandstone with the Portland Stone at the top, which can be see today. Most of the Portland Stone is of the Cherty Series, with the Freestone being right at the top.
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