Geomorphology

long, narrow ridge with a narrow crest and steep slopes of nearly equal inclination on both flanks

superseded scientific theory

slow, downward progression of rock and soil down a low grade slope

measure of the branching complexity of a mathematical tree or a river system

thumb|right|A downslope view of part of the erosion|eroding rill network from [[County Tyrone, Northern Ireland. See below for a close-up view of a single rill]] In hillslope geomorphology, a rill is a shallow channel (no more than a few inches/centimeters deep) cut into soil by the erosive action of flowing surface water. Similar but smaller incised channels are known as microrills; larger incised channels are known as gullies.

particles in a flowing fluid that are transported along the bed

geological structure where sets of intersecting closely spaced fractures, referred to as joints, result in the formation of a regular array of polygonal prisms, or columns

thumb|220px|right|The "Serapium" or Macellum of Pozzuoli demonstrated the effects of bradyseism. Bradyseism is the gradual uplift (positive bradyseism) or descent (negative bradyseism) of part of the Earth's surface caused by the filling or emptying of an underground magma chamber or hydrothermal activity, particularly in volcanic calderas. It can persist for millennia in between eruptions and each uplift event is normally accompanied by thousands of small to moderate earthquakes. The word derives from the ancient Greek words βραδύς bradús, meaning "slow", and σεισμός seismós meaning "movement

See also Line (geometry)

part the european continent

depositional feature of alluvium that accumulates on the inside bend of streams and rivers below the slip-off slope

geomorphological feature in Canada

geomorphology of glaciers

classification system for Earth's landforms based on the work on N. M. Fenneman

300px|thumb|Shape of a human head on Marcahuasi Marcahuasi () is a plateau in the Andes Mountains, located 60 km east of Lima, on the mountain range that rises to the right bank of the Rímac River. The site is located at above sea level and is known for its unusual geological formations; curious shapes of human faces and animals visible in granite rock.

topographic surface which slopes in the same direction as the dip of the underlying strata

change in shape and direction of river channels over time

graph used by hydrologists and geologists to determine whether a river will erode, transport, or deposit sediment

depression at the base of a waterfall created by the erosional force of falling water and rocks where it lands

aeolian landform

short distance movement of coherent earth down a slope

sediment deposited by a lake

measuring instrument

unit of speed

beach or wave-cut platform raised above the shoreline by a relative fall in the sea level

adverse geologic conditions capable of causing damage or loss of property and life

Lowest limit for erosion processes

closed, drainless depression

thumbnail|A dreikanter from the Wind River Basin, Wyoming, USA. Property of Western Washington University. Photo by AJ Wakefield, 2012.

outside bank of a water channel, which is continually undergoing erosion

in geomorphology, a natural region of intermediate size

soil

perimeter of a cross sectional area that is wet

Dune made of ice

geomorphological regions of Russia

rapid abandonment of a river channel and formation of a new channel

stream maintaining its original course and pattern despite the changes in underlying rock top

landscape features that have reversed their elevation relative to other features

Hydrological relationship

association of surface rocks with stream beds or beaches

accumulation of large wood that can span an entire stream or river channel, preventing movement downstream (common in North America during historical period of moving lumber using rivers)

Form of shear stress

landform in a river

mid-level region in the Fenneman model of physiographic regionalization

area where land meets the sea

the smoothness of clastic particles

area of flat land on a slope

lowering of a fluvial surface, such as a stream bed or floodplain, through erosional processes

landform

a landform with a distinctly conical shape

depositional forms in diluvial plain and mountain scablands

type of rock formation

ice-covered area of Antarctica where wind-driven snow transport and sublimation result in net mass loss from the ice surface in the absence of melting, forming a blue-coloured surface that contrasts with the white colour of the Antarctic surface

thumb|Aerial view of a riverscape of the Kugruk River ([[Alaska)]] A riverscape (also called river landscape) comprises the features of the landscape which can be found on and along a river. Most features of riverscapes include natural landforms (such as meanders and oxbow lakes) but they can also include artificial landforms (such as man-made levees and river groynes). Riverscapes can be divided into upper course riverscapes, middle course riverscapes, and lower course riverscapes. thumb|Riverine landscape along the lower course of the Rhine ([[Netherlands)]]

geomorphologic break that demarcates the border between an upland region and a coastal plain

upright=1.1|right|thumb|The Horseshoe Falls, Canada|Horseshoe Falls, one of the three Niagara Falls. The falls are a knickpoint, formed by slower erosion above the falls than below.