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The Carboniferous (/ ˌ k ɑːr b ə ˈ n ɪ f ər ə s / KAR-bə-NIF-ər-əs) [6] is a geologic period and system of the Paleozoic era that spans 60 million years from the end of the Devonian Period 358.86 Ma (million years ago) to the beginning of the Permian Period, 298.9 Ma.
The Westphalian is a regional stage or age in the regional stratigraphy of northwest Europe, with an age between roughly 315 [1] [2] and 307 [1] [3] Ma (million years ago).It is a subdivision of the Carboniferous System or Period and the regional Silesian Series.
The Late Carboniferous a Time of Great Coal Swamps, Paleomap project. World map from this time period. The Carboniferous – 354 to 290 Million Years Ago, University of California Museum of Paleontology. Information on stratigraphies, localities, tectonics, and life. The Pennsylvanian Epoch of the Carboniferous Period: 318 to 299 Mya, Paleos.com
The work describes the Carboniferous strata in the north-east in their vertical sequence as discovered during mining operations and discusses their lateral variations. It presents the first long composite stratigraphic section at the scale of an entire geological system, representing over 1000 m of section, combining mine records between Cross ...
It is a subdivision of the Carboniferous system or period, as well as the regional Silesian series. The Namurian is named for the Belgian city and province of Namur where strata of this age occur (part of the Belgian Coal Measures). The Millstone Grit Group in the lithostratigraphy of northern England and parts of Wales is also of Namurian age.
The Carboniferous extends from about 358.9 ± 0.4 to about 298.9 ± 0.15 Ma. [10] A global drop in sea level at the end of the Devonian reversed early in the Carboniferous; this created the widespread epicontinental seas and carbonate deposition of the Mississippian. There was also a drop in south polar temperatures; southern Gondwana was ...
The Carboniferous strata of the southwest of the National Park was more intensely affected by folding during the Variscan orogeny than strata elsewhere. A boundary between the two structural styles roughly follows the line of Asbian reef knolls from southeast to northwest, defining a 'mobile area' in the west characterised by broadly north ...
The Tournaisian was named after the Belgian city of Tournai.It was introduced in scientific literature by Belgian geologist André Hubert Dumont in 1832. Like many Devonian and lower Carboniferous stages, the Tournaisian is a unit from West European regional stratigraphy that is now used in the official international time scale.