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The second theory is that the geographical setting and climate of the Carboniferous were unique in Earth's history: the co-occurrence of the position of the continents across the humid equatorial zone, high biological productivity, and the low-lying, water-logged and slowly subsiding sedimentary basins that allowed the thick accumulation of ...
The Border Group is a Carboniferous lithostratigraphic group (a sequence of rock strata) in southern Scotland and northernmost England. The name is derived from the Scottish Borders region. The rocks of the Border Group have also previously been referred to as the Lower, Middle and Upper Border groups.
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 ...
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 strata become gradually younger from west to east. [1] [2] Much of Yorkshire presents heavily glaciated scenery as few places escaped the direct or indirect impact of the great ice sheets as they first advanced and then retreated during the last ice age. A simplified geology of Yorkshire
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.
Photographs of the American West, Boston Public Library The Book Cliff in Helper, Utah. The Book Cliffs are a series of desert mountains and cliffs in western Colorado and eastern Utah in the Western United States. [1] They are so named because the cliffs of Cretaceous sandstone capping many of the south-facing buttes appear similar to a shelf ...
The exploitation of the Coal Measures and other Carboniferous age strata in the Ironbridge area made it one of the birthplaces of the Industrial Revolution. There is also a large amount of mineral wealth in the county, including lead and baryte. Quarrying is still active, with limestone for cement manufacture and concrete aggregate, sandstone ...