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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
A limestone pavement is a natural karst landform consisting of a flat, incised surface of exposed limestone that resembles an artificial pavement. [1] The term is mainly used in the UK and Ireland, where many of these landforms have developed distinctive surface patterning resembling paving blocks. [ 2 ]
"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 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 ...
Map of Buxton's limestone quarries and freight railways The Buxton lime industry has been important for the development of the town of Buxton in Derbyshire, England, and it has shaped the landscape around the town. Geology The White Peak area of the Peak District is named after the limestone plateau landscape of the ' Derbyshire Dome '. This limestone outcrop is surrounded by a horseshoe ...
Fossils are also common in limestone. [3] Limestone is commonly white to gray in color. Limestone that is unusually rich in organic matter can be almost black in color, while traces of iron or manganese can give limestone an off-white to yellow to red color. The density of limestone depends on its porosity, which varies from 0.1% for the ...
Ragstone was – and still is - also used in roads, and modern quarrying methods allow a wide range of products to be supplied today. [4] [7] [8] Ragstone acquired its name from the quarrymen who so named it because it would break along ragged edges. Because the rock is bedded between layers of hassock, the phrase ‘rag and hassock’ arose.
Portland stone is a limestone geological formation (formally named the Portland Stone Formation [1]) dating to the Tithonian age of the Late Jurassic that is quarried on the Isle of Portland in Dorset, England. [1] The quarries are cut in beds of white-grey limestone separated by chert beds.