Escarpment in the context of "Atlantic Seaboard fall line"

Terrain (from Latin terra 'earth'), alternatively relief or topographical relief, is the dimension and shape of a given surface of a land. In physical geography, terrain is the lay of the land. This is usually expressed in terms of the elevation, slope, and orientation of terrain features. Terrain affects surface water flow and distribution. Over a large area, it can affect weather and climate patterns. Bathymetry is the study of underwater relief, while hypsometry studies terrain relative to sea level.

In geography and geology, a cliff or rock face is an area of rock which has a general angle defined by the vertical, or nearly vertical. Cliffs are formed by the processes of weathering and erosion, with the effect of gravity. Cliffs are common on coasts, in mountainous areas, escarpments and along rivers. Cliffs are usually composed of rock that is resistant to weathering and erosion. The sedimentary rocks that are most likely to form cliffs include sandstone, limestone, chalk, and dolomite. Igneous rocks such as granite and basalt also often form cliffs.

An escarpment (or scarp) is a type of cliff formed by the movement of a geologic fault, a landslide, or sometimes by rock slides or falling rocks which change the differential erosion of the rock layers.

Ethiopia is one of the oldest countries in Africa; the emergence of Ethiopian civilization dates back thousands of years. Abyssinia or rather "Ze Etiyopia" was ruled by the Semitic Abyssinians (Habesha) composed mainly of the Amhara, Tigrayans and the Cushitic, Oromo and Agaw. In the Eastern escarpment of the Ethiopian highlands and more so the lowlands were the home of the various Muslim groups that formed the Ifat and Adal sultanates such as the Argobba, Afars, Harari/Harla and Somalis. In the central and south were found the ancient Sidama, Semitic Gurage and Omotic Wolaita, among others.One of the first kingdoms to rise to power in the territory was the kingdom of Damot in the 10th century BC, which established its capital at Yeha. In the first century AD, the Aksumite Kingdom rose to power in the modern Tigray Region with its capital at Aksum and grew into a major power on the Red Sea, subjugating South Arabia and Meroe and its surrounding areas. In the early fourth century, during the reign of Ezana, Christianity was declared the state religion and not long after, the Aksumite empire fell into decline with the rise of Islam in the Arabian peninsula, which slowly shifted trade away from the Christian Aksum. It eventually became isolated, its economy slumped and Aksum's commercial domination of the region ended. The Aksumites gave way to the Zagwe dynasty, who established a new capital at Lalibela before giving way to the Solomonic dynasty in the 13th century. During the early Solomonic period, Ethiopia underwent military reforms and imperial expansion, allowing it to dominate the Horn of Africa.

Sediment transport is the movement of solid particles (sediment), typically due to a combination of gravity acting on the sediment, and the movement of the fluid in which the sediment is entrained. Sediment transport occurs in natural systems where the particles are clastic rocks (sand, gravel, boulders, etc.), mud, or clay; the fluid is air, water, or ice; and the force of gravity acts to move the particles along the sloping surface on which they are resting. Sediment transport due to fluid motion occurs in rivers, oceans, lakes, seas, and other bodies of water due to currents and tides. Transport is also caused by glaciers as they flow, and on terrestrial surfaces under the influence of wind. Sediment transport due only to gravity can occur on sloping surfaces in general, including hillslopes, scarps, cliffs, and the continental shelf—continental slope boundary.

Sediment transport is important in the fields of sedimentary geology, geomorphology, civil engineering, hydraulic engineering and environmental engineering (see applications, below). Knowledge of sediment transport is most often used to determine whether erosion or deposition will occur, the magnitude of this erosion or deposition, and the time and distance over which it will occur.

In geology and physical geography, a plateau (/pləˈtoʊ, plæˈtoʊ, ˈplætoʊ/; French: [plato]; pl.: plateaus or plateaux), also called a high plain or a tableland, is an area of highland consisting of flat terrain that is raised sharply above the surrounding area on at least one side. Often one or more sides have deep hills or escarpments. Plateaus can be formed by a number of processes, including upwelling of volcanic magma, extrusion of lava, and erosion by water and glaciers. Plateaus are classified according to their surrounding environment as intermontane, piedmont, or continental. A few plateaus may have a small flat top while others have wider ones.

Mycale (/ˈmɪkəli/) also Mykale and Mykali (Ancient Greek: Μυκάλη, Mykálē), called Samsun Dağı and Dilek Dağı (Dilek Peninsula) in modern Turkey, is a mountain on the west coast of central Anatolia in Turkey, north of the mouth of the Maeander and divided from the Greek island of Samos by the 1.6 km wide Mycale Strait. The mountain forms a ridge, terminating in what was known anciently as the Trogilium promontory (Ancient Greek Τρωγίλιον or Τρωγύλιον). There are several beaches on the north shore ranging from sand to pebbles. The south flank is mainly escarpment.

In classical Greece nearly the entire ridge was a promontory enclosed by the Aegean Sea. Geopolitically it was part of Ionia with Priene placed on the coast on the south flank of the mountain and Miletus on the coast opposite to the south across the deep embayment into which the Maeander River drained. Somewhat further north was Ephesus.

Dura-Europos was a Hellenistic, Parthian, and Roman border city built on an escarpment 90 metres (300 feet) above the southwestern bank of the Euphrates river. It is located near the village of Salhiyé, in present-day Syria. Dura-Europos was founded around 300 BC by Seleucus I Nicator, who founded the Seleucid Empire as one of the Diadochi of Alexander the Great. In 113 BC, Parthians conquered the city, and held it, with one brief Roman intermission (114 AD), until 165 AD. Under Parthian rule, it became an important provincial administrative centre. The Romans decisively captured Dura-Europos in 165 AD and greatly enlarged it as their easternmost stronghold in Mesopotamia, until it was captured by the Sasanian Empire after a siege in 256–257 AD. Its population was deported, and the abandoned city eventually became covered by sand and mud and disappeared from sight.

Dura-Europos is of extreme archaeological importance, and was called the "Pompeii of the Desert". As it was abandoned after its conquest in 256–57 AD, nothing was built over it and no later building programs obscured the architectural features of the ancient city. Its location on the edge of empires made for a commingling of cultural traditions, much of which was preserved under the city's ruins. Some remarkable finds have been brought to light, including numerous temples, wall decorations, inscriptions, military equipment, tombs, and even dramatic evidence of the Sasanian siege.

Fault blocks are very large blocks of rock, sometimes hundreds of kilometres in extent, created by tectonic and localized stresses in Earth's crust. Large areas of bedrock are broken up into blocks by faults. Blocks are characterized by relatively uniform lithology. The largest of these fault blocks are called crustal blocks. Large crustal blocks broken off from tectonic plates are called terranes. Those terranes which are the full thickness of the lithosphere are called microplates. Continent-sized blocks are called variously microcontinents, continental ribbons, H-blocks, extensional allochthons and outer highs.

Because most stresses relate to the tectonic activity of moving plates, most motion between blocks is horizontal, that is parallel to the Earth's crust by strike-slip faults. However vertical movement of blocks produces much more dramatic results. Landforms (mountains, hills, ridges, lakes, valleys, etc.) are sometimes formed when the faults have a large vertical displacement. Adjacent raised blocks (horsts) and down-dropped blocks (grabens) can form high escarpments. Often the movement of these blocks is accompanied by tilting, due to compaction or stretching of the crust at that point.

The Cotswolds (/ˈkɒtswoʊldz, ˈkɒtswəldz/ KOTS-wohldz, KOTS-wəldz) is a region of South West and South East England with small parts extending into the West Midlands, along a range of wolds or rolling hills that rise from the meadows of the upper River Thames to an escarpment above the Severn Valley and the Vale of Evesham. The area is defined by the bedrock of Jurassic limestone that creates a type of grassland habitat that is quarried for the golden-coloured Cotswold stone. It lies across the boundaries of several English counties: mainly Gloucestershire and Oxfordshire, and parts of Wiltshire, Somerset, Worcestershire, and Warwickshire. The highest point is Cleeve Hill at 1,083 ft (330 m), just east of Cheltenham. The predominantly rural landscape contains stone-built villages, towns, stately homes and gardens featuring the local stone.

A large area within the Cotswolds has been designated as a National Landscape (formerly known as Area of Outstanding Natural Beauty, or AONB) since 1966. The designation covers 787 square miles (2,038 km), with boundaries roughly 25 miles (40 km) across and 90 miles (140 km) long, stretching south-west from just south of Stratford-upon-Avon to just south of Bath, making it the largest National Landscape area and England's third-largest protected landscape.

A canyon (from Spanish cañón; 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. Rivers have a natural tendency to cut through underlying surfaces, eventually wearing away rock layers as sediments are removed downstream. A river bed will gradually reach a baseline elevation, which is the same elevation as the body of water into which the river drains. The processes of weathering and erosion will form canyons when the river's headwaters and estuary are at significantly different elevations, particularly through regions where softer rock layers are intermingled with harder layers more resistant to weathering.

A canyon may also refer to a rift between two mountain peaks, such as those in ranges including the Rocky Mountains, the Alps, the Himalayas or the Andes. Usually, a river or stream carves out such splits between mountains. Examples of mountain-type canyons are Provo Canyon in Utah or Yosemite Valley in California's Sierra Nevada. Canyons within mountains, or gorges that have an opening on only one side, are called box canyons. Slot canyons are very narrow canyons that often have smooth walls.