The rocks of Mendip - British Geological Survey
This coarse-grained rock consists of boulders and smaller fragments of Carboniferous Limestone, and less commonly Portishead Formation sandstone, bound together with finer-grained sediment. The rock was deposited in steep-sided desert canyons, called wadis, and on steep mountain slopes. It … See more
These rocks are red mudstones, siltstones and sandstones, and represent the finer-grained products formed by the erosion of the Mendips during … See more
The Penarth Group is a thin succession of dark, organic-rich mudstones (Westbury Formation), fine-grained limestones (Langport Member) and conglomerates. At the base of these … See more
Dolomite (rock) - Wikipedia
Dolomite (also known as dolomite rock, dolostone or dolomitic rock) is a sedimentary carbonate rock that contains a high percentage of the mineral dolomite, CaMg(CO3)2. It occurs widely, often in association with limestone and evaporites, though it is less abundant than limestone and rare in Cenozoic rock beds (beds less than about 66 million years in age). One of the first geologist…
Wikipedia · Text under CC-BY-SA licenseThe Triassic, 251 – 200 million years ago | Ancient …
Evidence of similar processes is seen in the Triassic rocks of the Mendips, known as the Dolomitic Conglomerate and Mercia Mudstone and shows that this upland region was quickly being eroded.
Dolomite: A sedimentary rock known as dolostone or dolomite rock
Dolomite, also known as " dolostone " and " dolomite rock," is a sedimentary rock composed primarily of the mineral dolomite, CaMg (CO 3) 2. Dolomite is found in sedimentary basins …
Dolomite Rock - Sedimentary Rocks - Sandatlas
Dolomite rock is a very common sedimentary rock, especially older carbonate rocks (formed before the Mesozoic) tend to be dolomites whereas younger carbonates are predominantly …
Frenchman Mountain Dolostone: A new formation of the …
Mar 23, 2023 · Abstract. We describe, interpret, and establish a stratotype for the Frenchman Mountain Dolostone (FMD), a new Cambrian stratigraphic unit that records key global …
Mercia Mudstone Group, Permo-Triassic, Bristol and …
The most widespread facies, known as the Dolomitic Conglomerate, was mainly derived from the Carboniferous Limestone but where there are very extensive outcrops of Coal Measures, as in the Bristol–Pensford area, the marginal …
Cheddar Gorge, Geology. (by Ian West) - University of Southampton
The Dolomitic Conglomerate is a breccia or conglomerate consisting of blocks or fragments of Carboniferous Limestone in a matrix of sandy marl or fine-grained limestone debris (Green …
Dolostone - Geology is the Way
Dolostone, also known as dolomite (not to be confused with the mineral dolomite), is a type of carbonate sedimentary rock consisting predominantly of dolomite [CaMg (CO 3) 2] and to a lesser extent of other carbonates, like calcite and …
Geology of the Bath area: Triassic - MediaWiki - British …
In contrast, the Mercia Mudstone Marginal Facies (MMMF; formerly known as the ‘Dolomitic Conglomerate’) comprising breccia, conglomerate and sandstone with dolomitic cement, represents screes, alluvial fans and wadi deposits …
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