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Patterned Ground – Patterned ground occurs where stones form circles, polygons and stripes. Local topography affects which of these are expressed. A process called frost heaving is responsible for these features. Solifluction lobes – Solifluction lobes are formed when waterlogged soil slips down a slope due to gravity, forming U-shaped lobes.
A carr is a type of waterlogged wooded terrain that, typically, represents a succession stage between the original reedy swamp and the eventual formation of forest in a sub-maritime climate. The name derives from the Old Norse kjarr, meaning a swamp.
The definition of the term in geology and paleontology is slightly different from its use in soil science. In geology and paleontology, a paleosol is a former soil preserved by burial underneath either sediments (alluvium or loess) or volcanic deposits (lava flows or volcanic ash), which in the case of older deposits have lithified into rock.
In the sub-tropics, mires are rare and restricted to the wettest areas. Mires can be extensive in the tropics, typically underlying tropical rainforest (for example, in Kalimantan, the Congo Basin and Amazon basin). Tropical peat formation is known to occur in coastal mangroves as well as in areas of high altitude. [3]
A flat or very gently sloping area on the floor of a deep ocean basin. absolute dating The process of determining a specific date (in years or some other unit of time) for an archaeological, geological or paleontological site or artifact. accident A sudden discontinuity of ground, such as a fault of great thickness, bed or lentil of unstable ...
An example was given that this might be a dried-up river channel (known as a palaeochannel), which may subsequently reveal rich waterlogged archaeological deposits in its lower layers, or an area of slightly higher ground above winter flood level on an alluvial floodplain, which may be very hard to detect from the ground but which has attracted ...
Eventually, peat builds up to a level where the land surface is too flat for ground or surface water to reach the center of the wetland. This part, therefore, becomes wholly rain-fed (ombrotrophic), and the resulting acidic conditions allow the development of bog (even if the substrate is non-acidic).
Sedimentary basin: in sedimentology, an area thickly filled with sediment [1] in which the weight of the sediment further depresses the floor of the basin. Structural or tectonic-related: Structural basin : a syncline -like depression; a region of tectonic downwarping as a result of isostasy (the Hawaiian Trough is an example) or subduction ...