Geomorphology Geomorphology An alluvial fan is a fan-shaped deposit where a fast flowing stream flattens, slows, and spreads typically at the exit of a canyon onto a flatter plain. ...more on Wikipedia about "Alluvial fan"
An alluvial plain is a relatively flat and gently sloping landform found at the base of a range of hills. As the hills erode due to weathering and water flow the sediment from the hills is transported to the lower plain. Various creeks will carry the water further to a river, lake, bay, or ocean. As the sediments are deposited during flood conditions in the floodplain of the creek, the elevation of the floodplain will be raised. As this reduces the channel floodwater capacity, the creek will over time seek new, lower paths, forming meanders (a curving sinuous path). The leftover higher locations, typically natural levees at the margins of the flood channel, will themselves be eroded by lateral stream erosion and from local rainfall and possibly wind transport if the climate is arid and does not support soil-holding grasses. These processes over geologic time will form the plain - a region with little relief (local changes in elevation), yet with a constant but small slope. ...more on Wikipedia about "Alluvial plain"
The base level of a river or stream is the lowest point to which it can flow, often referred to as the 'mouth' of the river. For large rivers, sea level is usually the base level, but a large river or lake is likewise the base level for tributary streams. A rather rare exception can be seen in the Jordan River, for which the base level is the Dead Sea, 417 m below modern sea level. ...more on Wikipedia about "Base level"
Bathymetry is the underwater equivalent to topography. A bathymetric map gives the depth contours of the soil, rock, sand, etc. at the bottom of a body of water such as an ocean or a lake. In addition to this, a bathymetric chart provides navigational information. ...more on Wikipedia about "Bathymetry"
A braided river, also called an anastomizing river, has a channel that consists of a network of small channels separated by small and often temporary islands called braid bars. Braided streams are common wherever a drastic reduction in stream gradient causes the rapid deposition of the stream's sediment load. Braided channels are also typical of river deltas. ...more on Wikipedia about "Braided river"
Coastal erosion is common phrase referring to the loss of subaerial landmass into a sea or lake due to natural processes such as waves, winds and tides, or even due to human interference. Large storm-generated waves typically cause coastal erosion, which may take the form of long-term losses of sediment and rocks, or merely in the temporary redistribution of coastal sediments. ...more on Wikipedia about "Coastal erosion"
The cycle of erosion was a model for stream erosion and landscape development proposed by William Morris Davis in the late 1800s. Davis' Stages in the fluvial cycle of erosion published in 1909 defined a young, mature, and old sequence in the development of river valleys and the landscape the rivers were eroding. The concept of peneplanation was a part of his model. ...more on Wikipedia about "Cycle of erosion" http://www.shortopedia.com Is Good For You.
A drainage system is the pattern formed by the streams, rivers, and lakes in a particular watershed. They are governed by the topography of the land, whether a particular region is dominated by hard or soft rocks, and the gradient of the land. ...more on Wikipedia about "Drainage system"
Erosion is the displacement of solids ( soil, mud, rock, and other particles) by the agents of wind, water, ice, movement in response to gravity, or living organisms (in the case of bioerosion). Although the processes may be simultaneous, erosion is to be distinguished from weathering, which is the decomposition of rock. Erosion is an important natural process, but in many places it is increased by human land use. Some of those poor land use practices include deforestation, overgrazing and road or trail building. However, improved land use practices can limit erosion using techniques like terrace-building and tree planting. ...more on Wikipedia about "Erosion"
A fault scarp is an escarpment or apparent step in the ground caused by an active earthquake or by differential erosion along an old inactive fault. Active fault scarps are formed when an earthquake changes the elvation of the ground, and can be caused by any type of fault, including strike-slip faults, whose motion is primarily horizontal. Fault scarps may be only a few centimetres or many metres high. Fault-line scarps are coincident with faults, but are most typically formed by the erosion of weaker rocks that have been brought alongside more resistant ones by the fault's movements. In the case of old eroded fault scarps, active erosion may have moved the physical cliff back away from the actual fault location which may be buried beneath talus or valley fill. ...more on Wikipedia about "Fault scarp"
The word fluvial is used in geography and earth science to refer to all topics related to flowing water. Fluvial usually refers to rivers, streams and sometimes through flow, overland flow and percolation. Fluvial may also refer to glaciers and oceans, though these are usually known as glacial, oceanic and coastal. ...more on Wikipedia about "Fluvial"
*Consequent streams are streams whose course is a direct consequence of the original slope of the surface upon which it developed, i.e., streams that follow slope of the original land. ...more on Wikipedia about "Fluvial landforms of streams"
Frost heaving (or frost heave) occurs when soil expands and contracts due to freezing and thawing. This process can damage plant roots through breaking or desiccation, cause cracks in pavement, and damage the foundations of buildings, even below the frost line. Moist, fine-grained soil at certain temperatures is most susceptible to frost heaving. ...more on Wikipedia about "Frost heaving"
Geomorphology is the study of landforms, including their origin and evolution, and the processes that shape them. The underlying question is: Why do landscapes look the way they do? The term is derived from the Greek geo, meaning Earth, and morph, meaning form. Geomorphologists seek to understand landform history and dynamics, and predict future changes through a combination of field observation, physical experiment, and numerical modeling. The discipline is practiced within geology, geography, archaeology and civil and environmental engineering. Early studies in geomorphology are the foundation for pedology, one of two main branches of soil science. ...more on Wikipedia about "Geomorphology"
The view on shortopedia.
A landform comprises a geomorphological unit. Landforms are categorised by characteristics such as elevation, slope, orientation, stratification, rock exposure, and soil type. Landforms by name include berms, mounds, hills, cliffs, valleys, and so forth. Oceans and continents exemplify highest-order landforms. ...more on Wikipedia about "Landform"
===Principles of Geology=== ...more on Wikipedia about "List of publications in geology"
A meander is a bend in a river, also known as an oxbow loop. ...more on Wikipedia about "Meander"
:For the Japanese computer game company, see Monolith Soft. ...more on Wikipedia about "Monolith"
A mountain is a landform that extends above the surrounding terrain in a limited area. A mountain is generally higher and steeper than a hill, but there is considerable overlap, and usage often depends on local custom. Some authorities define a mountain as a peak with a topographic prominence over a defined value: for example, the Encyclopædia Britannica requires a prominence of 2,000 feet (610 m). ...more on Wikipedia about "Mountain"
Nivation is the process of alternative freeze and thaw by which fallen snow gets converted into mass of ice or Névé, hence the term, nivation. The term glacier is applied only when the ice has accumulated enough for the mass to reach the moving stage. ...more on Wikipedia about "Nivation"
There are various popular theories as to how the world's oceans were formed over the past 4.6 billion years. Some of the most likely contributing factors to the origin of the Earth's oceans are as follows: ...more on Wikipedia about "Origin of the world's oceans" My www.shortopedia.com and me. Geomorphology
A peneplain is final stage in fluvial or stream erosion. After the streams in an area have reached base level, lateral erosion is dominant as the streams erode the highland areas between them. Finally, virtually all of the upland is gone and the stream floodplains merge in an area of very low to no topographic relief. Essentially the result is a flat plain which is the ultimate stage in the cycle of erosion or geographical cycle. The streams within a peneplained region show extensive meandering and braiding. If the area is subsequently uplifted due to adjacent orogenic processes without internal deformation within the peneplain, the streams will again begin downward erosion and create incised meanders, water gaps, and other unique geomorphic features. The concept was developed by the early geomorphologists William Morris Davis and Walther Penck in the early 1900s. ...more on Wikipedia about "Peneplain"
In geology, permafrost or permafrost soil is soil that stays in a frozen state for more than two years in a row. Most permafrost is located in high latitudes, but alpine permafrost exists at high altitudes. ...more on Wikipedia about "Permafrost"
A river is a large natural waterway. The source of a river may be a lake, a spring, or a collection of small streams, known as headwaters. From their source, all rivers flow downhill, typically terminating in the ocean. The mouth, or lower end of a river is known as its base level. ...more on Wikipedia about "River"
In geology, a sag is a former river bed which has been partially filled with debris from glaciation or other natural processes but which is still visible in the surface terrain. Sags formed by the former river beds of large rivers often become the valleys of smaller streams after a change of course by the main river. ...more on Wikipedia about "Sag (geology)" Visit again http://www.shortopedia.com
This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia . Direct links to the original articles are in the text.
If you use exact copy or modified of this article you should preserve above paragraph and put also : It uses material from
the Shortopedia article about "Geomorphology".
| MAIN PAGE | MAIN INDEX | CONTACT US |