What is a spur in a river?

What is a spur in a river?

Spurs are river engineering elements used to protect river banks from erosion and to concentrate flow to the river axis. Today, spurs are also employed for promoting environmental conditions along a river bank.

How is a spur formed in geography?

As the river erodes the landscape in the upper course it winds and bends to avoid areas of hard rock. This creates interlocking spurs which look a bit like the interlocking parts of a zip.

What is the difference between ridge and spur?

A ridge is a landform feature characterized by a continuous elevational crest with sloping sides. Arête is a narrow ridge formed by glacial erosion. A spur is a lateral ridge projecting from the mountain or the main ridge crest.

What is a spur ridge?

A small ridge which extends finger-like from a main ridge.

How Spurs are formed?

Joint damage from osteoarthritis is the most common cause of bone spurs. As osteoarthritis breaks down the cartilage cushioning the ends of your bones, your body attempts to repair the loss by creating bone spurs near the damaged area.

What are Spurs and groynes?

Groynes or spurs: Structures constructed transverse to the river flow extending from the bank into the river. Can be aligned either perpendicular to the bank or at an angle pointing d/s or u/s. Also known as spur dike or transverse dikes and constitute the most widely used river training works.

What are interlocking spurs GCSE geography?

7 July 2020 /in AQA GCSE Geography, Landforms of river erosion, Rivers/by Anthony Bennett. Interlocking spurs are fingers of land that jut out into the river valley that streams and rivers are forced to flow around in the upper course. Find out more about the landforms of erosion in the upper course of a river.

What is the upper course of a river called?

If we look into the whole length of a river we will notice that it has three definite courses: 1. The Upper or Mountain Course 2. The Middle or Plain Course 3. The Lower or Deltaic Course.

What is a spur in map reading?

A spur is a 'V'-shaped hill that juts out. A simple way to tell a valley from a spur when looking at contour lines is to remember that if the 'V' points uphill it's a valley, if it points downhill it's a spur.

What is a spur slope?

Spur: A spur is a short, continuous sloping line of higher ground, normally jutting out from the side of a ridge. A spur is often formed by two roughly parallel streams cutting draws down the side of a ridge. The ground will slope down in three directions and up in one.

What is called spur?

a : a projecting root or branch of a tree, shrub, or vine. b(1) : a stiff sharp spine (as on the wings or legs of a bird or insect) especially : one on a cock's leg. (2) : a gaff for a gamecock. c : a hollow projecting appendage of a corolla or calyx (as in larkspur or columbine) d : bone spur.

What is a spur map?

A spur is often formed by two rough parallel streams, which cut draws down the side of a ridge. The ground sloped down in three directions and up in one direction. Contour lines on a map depict a spur with the U or V pointing away from high ground. Latest articles in Land Navigation.

Why do bone spurs form?

Bone spurs typically develop around areas of joint, cartilage, tendon or ligament inflammation and injury in the body. When the body detects an injury or inflammation, it triggers a cellular response to repair the damage by producing excess bone in the area.

What is Spurs in hydrology?

A spur (also called groyne) is a structure constructed transverse to the river flow and is projected form the bank into the river.

What is spur dam?

Also called groynes, spur, dikes, or transverse dikes. They constitute probably the most widely used training work. Spurs are the structures constructed on the river bank normal to the dominant flow direction or at an angle pointing upstream or downstream.

What is a pronounced bend in a river called?

Meander – A pronounced bend in a river. Oxbow lake – An arc-shaped lake which has been cut off from a meandering river. Waterfall – Sudden descent of a river or stream over a vertical or very steep slope in its bed.

What are the 3 sections of a river?

Rivers are split up into three parts: the upper course, the middle course, and the lower course. The upper course is closest to the source of a river. The land is usually high and mountainous, and the river has a steep gradient with fast-flowing water.

What is the middle of the river called?

The middle of a river's journey, when it gets wider and slows down, is called the middle age. Rivers often meander (follow a winding path) along their middle course.

How is a valley and a spur identified on a map?

In the case of a river valley, the greatest height is to the outer side and the land sinks down towards the inner side, where the riverbed is. In the case of a spur, the greatest height is to the inner side and the land sinks down towards the outer side of the spur.

What is spur and example?

The definition of a spur is anything that pushes someone or something forward or a device that goes over a shoe during horseback riding for the rider to use to push the horse forward. An example of spur is a prize that drives someone to win the race. An example of spur is an item that a cowboy wears on his boots.

What is spur in plants?

Spur (spur) (botany noun): A tubular projection of tissue on different plant organs. The most common usage of the term in botany refers to nectar spurs in flowers. Nectar spurs can project from a flower's sepals 1 petals 2 or hypanthium 3 and contain the glands that secrete nectar, called nectaries.

Whats a bone spur look like?

Bone spurs look like hard lumps under the skin and can make the joints in the fingers appear knobby. Shoulder. Bone spurs can rub against the rotator cuff, which controls shoulder movement. This can lead to shoulder tendinitis and can even tear the rotator cuff.

Can bone spurs grow anywhere?

Bone spurs can occur anywhere throughout the skeleton, but there are a few common places where you're more likely to develop them. They tend to grow on the edges of bones where two bones meet, which is on a joint. Other places where muscles, ligaments, or tendons connect with bone are likely to develop them.

How do Spurs assist in river control?

Spurs are structures that protrude into the river. Small spurs know as studs help keep the flood water away from venerable banks. The cost of creating the spurs and dykes can be kept low through community participation. Figure 3: Spurs used for controlling erosion at bends in rivers and spur design options.

What is spur structure?

Spur is a permeable and temporary structure. These structures are constructed on the curve of a river to protect the river bank from erosion. This type of structure is most suitable where the river carries sediment load in suspension.

What are Rapids along a river called?

flow of water descending steeply over a cliff. Also called a cascade. llquid flowing quickly in a circular motion, pulling material downward into its center. fast-moving parts of a river.

Why do rivers zig zag?

0:162:56Why Do Rivers Curve? – YouTubeYouTube

What is the middle of a river called?

The middle of a river's journey, when it gets wider and slows down, is called the middle age. Rivers often meander (follow a winding path) along their middle course.

What are the ends of a river called?

This source is called a headwater. The headwater can come from rainfall or snowmelt in mountains, but it can also bubble up from groundwater or form at the edge of a lake or large pond. The other end of a river is called its mouth, where water empties into a larger body of water, such as a lake or ocean.

What are the 3 stages of a river called?

These categories are: Youthful, Mature and Old Age. A Rejuvenated River, one with a gradient that is raised by the earth's movement, can be an old age river that returns to a Youthful State, and which repeats the cycle of stages once again.