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The Lower Greensand as a broad zone between the brick-patterned chalk (a type of limestone) and the interior large c-shape Weald Clay. Many towns shown are on the Lower Greensand. The Lower Greensand Group is a geological unit present across large areas of Southern England. It was deposited during the Aptian and Albian ages of the Early ...
The name Cornbrash is an old English agricultural name applied in Wiltshire to a variety of loose rubble or brash which, in that part of the country, forms a good soil for growing corn. The name was adopted by William Smith for a thin band of shelly limestone which, in the south of England, breaks up in the manner indicated.
"Drift" geology is often more important than "solid" geology when considering building works, drainage, siting water boreholes, soil fertility, and many other issues. Glaciation and the resulting glacial and fluvio-glacial deposition has had a major impact on the landscape of England covering many areas with a veneer of glacial till in the ...
A part of the Carboniferous Limestone Supergroup, the Great Scar Limestone Group consists of a number of different formations except over the Alston Block where a 107m thickness of largely Asbian age limestones and sandstones occurs and is known as the Melmerby Scar Limestone Formation. [8] Great Scar Limestone Group Knipe Scar Limestone Formation
Locally sourced limestone has been used in the construction of the castles at Carew, Manorbier and Pembroke. Significant coastal limestone quarries were also active at Lydstep and Caldey. [10] Slate was quarried at Caersalem Quarry at Porthgain and exported via the village harbour. Many older buildings and field walls have been constructed from ...
The quarry's rocky slopes, grassy pockets and sheltered gullies are all havens for wildlife, and therefore features a wide range of plants and animals, hosting flora and fauna specific to limestone soil. [7] Described as one of Portland's prime nature habitats, [8] the thin limestone soils have been slowly colonised by a variety of wildflowers ...
A sheet of mainly Jurassic limestone fan gravel probably covered most of the vale in the past but has since been eroded away leaving isolated deposits, most notably the Cheltenham Sand, which forms a well-draining light soil in the Cheltenham-Gloucester region. Inferior oolite exposed below Crickley Hillfort on the edge of the Cotswold ...
Carboniferous Limestone – Limestone deposited during the Dinantian Epoch of the Carboniferous Period; Coquina – Sedimentary rock that is composed mostly of fragments of shells; Coral rag – Limestone composed of ancient coral reef material; Chalk – Soft carbonate rock; Fossiliferous limestone – Limestone containing fossils