Definition & Betydelse | Engelska ordet WEATHERING

Definition av WEATHERING

1. böjningsform av weather
2. presensparticip av weather

Exempel på hur man kan använda WEATHERING i en mening

• Cortex (archaeology), the outer layer of rock formed on the exterior of raw materials by chemical and mechanical weathering processes.
• Kaolinite is a soft, earthy, usually white, mineral (dioctahedral phyllosilicate clay), produced by the chemical weathering of aluminium silicate minerals like feldspar.
• Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's surface.
• Wookey Hole cave is a "solutional cave", one that is formed by a process of weathering in which the natural acid in groundwater dissolves the rocks.
• Mountains are formed through tectonic forces, erosion, or volcanism, Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers.
• Being an epitome of Danish functionalist architecture, the campus has been nicknamed Rustenborg (which roughly translates as The Rusty Castle) by students and staff, because it is built from gray concrete slabs clad with weathering steel, in an early architectural use of that material.
• Bryce is distinctive due to geological structures called hoodoos, formed by frost weathering and stream erosion of the river and lake bed sedimentary rock.
• Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles.
• Salination can be caused by natural processes such as mineral weathering or by the gradual withdrawal of an ocean.
• A canyon (from ; archaic British English spelling: cañon), gorge or chasm, is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity of a river over geologic time scales.
• Natural arches commonly form where inland cliffs, coastal cliffs, fins or stacks are subject to erosion from the sea, rivers or weathering (subaerial processes).
• Two main types of rock are exposed at the Alabama Hills, an orange, drab weathered metamorphosed volcanic rock that is 150200 million years old, and an 85-million-year-old biotite monzogranite which weathers to large roundish boulders, many of which stand on end due to spheroidal weathering acting on many nearly vertical joints in the rock.
• A variety of soil microbes (bacteria, archaea, fungi) feed on simple compounds (nutrients) released by weathering and produce organic acids and specialized proteins which contribute in turn to mineral weathering.
• In many places weathering of these strata has resulted in the formation of immature calcareous soils.
• Sedimentology encompasses the study of modern sediments such as sand, silt, and clay, and the processes that result in their formation (erosion and weathering), transport, deposition and diagenesis.
• Sedimentary rocks are formed by diagenesis and lithification of sediments, which in turn are formed by the weathering, transport, and deposition of existing rocks.
• Metamorphism is distinct from weathering or diagenesis, which are changes that take place at or just beneath Earth's surface.
• duricrust, formed by cementation of soils, saprolith and transported material like clays, silicates, iron oxides, oxyhydroxides, carbonates, sulfates and less common agents, into indurated layers resistant to weathering and erosion.
• Other possible explanations for the formation include a cometary impact, venting of volcanic gases, or just normal surface markings that are shielded from space weathering due to the magnetic field.
• Bentonite usually forms from the weathering of volcanic ash in seawater, or by hydrothermal circulation through the porosity of volcanic ash beds, which converts (devitrification) the volcanic glass (obsidian, rhyolite, dacite) present in the ash into clay minerals.

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