Search results
Results From The WOW.Com Content Network
Carboniferous Limestone is a collective term for the succession of limestones occurring widely throughout Great Britain and Ireland that were deposited during the Dinantian Epoch of the Carboniferous Period. These rocks formed between 363 and 325 million years ago.
Bituminous limestone; 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 ...
The Carboniferous Limestone is overlain by a suite of rocks traditionally referred to as the Yoredale Series, and named from 'Yoredale' (an older name for Wensleydale), these are divided into an upper/younger Stainmore Formation and a lower/older Alston Formation.
Limestone (calcium carbonate CaCO 3) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of CaCO 3. Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place ...
A cross section of the Peak District showing the structure of an eroded dome The Derbyshire Dome is a geological formation across mid- Derbyshire in England. Geology Map of the Peak District The White Peak area of the Peak District is named after the limestone plateau landscape of the 'Derbyshire Dome' anticline. The plateau is generally between 200m and 300m above sea level. This limestone ...
Carboniferous is the period during which both terrestrial animal and land plant life was well established. [10] Stegocephalia (four-limbed vertebrates including true tetrapods ), whose forerunners ( tetrapodomorphs ) had evolved from lobe-finned fish during the preceding Devonian period, became pentadactylous during the Carboniferous. [ 11 ]
The magnesian limestone deposits were laid down in an evaporating inland sea in the Permian period. [3] They are made up of a lower layer of dolomite and dolomitic limestone, which form the dominant landscape feature, overlain by red mudstone with gypsum. The upper layer is made of a similar sequence.
In neighbouring limestone areas, gritstone has often been preferred in the past for use as gateposts and lintels. [6] The very name of the rock derives from its widespread use within cornmills where it proved suitable for grinding stones. It also found agricultural use as drinking troughs for animals.