What is a spur in geography?
A spur is a lateral ridge or tongue of land descending from a hill, mountain or main crest of a ridge. It can also be defined as another hill or mountain range which projects in a lateral direction from a main hill or mountain range.
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 spur in hills?
A spur is a long, gently-sloping 'tongue' of ground that runs down from a hill to lower ground. Spurs often provide access to and from the high ground, for walkers, for roads, etc.
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 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 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 spur on a contour map?
Spurs often provide access to and from the high ground, for walkers, for roads, etc. You can spot a spur on the map quite easily – it looks like a long, narrow tongue of contour lines, dropping away from a mountain top or a ridge. Usually its sides will be quite steep, but its top will slope gently downwards.
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 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 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 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 a spur bridge?
Spurs are used to protect highr,ray embankments. Èhat forn the approaches to a bridge crossing. often these highway embankments cut off the overbank. flood flows causing these flows to run parallel to. the embanknent enroute to the bridge opening.
What’s the difference between a draw and a spur?
If you are standing in a draw, the ground slopes upwards in three directions and downward in the other direction. The contour lines depicting a draw are U-shaped or V-shaped, pointing toward high ground. Spur – A spur is a short, continuous sloping line of higher ground, normally jutting out from the side of a ridge.
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 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 is spur contour?
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. Contour lines on a map depict a spur with the U or V pointing away from high ground.
What is the full meaning of spur?
spur. / (spɜː) / noun. a pointed device or sharp spiked wheel fixed to the heel of a rider's boot to enable him to urge his horse on.
What is a spur in construction?
A fused spur is an electrical supply accessory that incorporates a fuse. This fuse, with a lower rating than the fuse for a ring man, allows an electrical supply using one feed cable to a socket to be taken off a ring main.
What is groynes or Spurs?
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 is a draw in land?
A draw (US) or re-entrant (international) is a terrain feature formed by two parallel ridges or spurs with low ground in between them. The area of low ground itself is the draw, and it is defined by the spurs surrounding it.
What’s the difference between a ridge and a hill?
The sides of the ridge slope away from the narrow top on either side. The lines along the crest formed by the highest points, with the terrain dropping down on either side, are called the ridgelines. Ridges are usually termed hills or mountains as well, depending on size.
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 two ends of a river called?
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.
What is spur in science?
Scientific definitions for spur spur. ( spûr ) A small ridge that projects sharply from the side of a larger hill or mountain. A projection from a bone, as on the heel of the foot.
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.
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 does a draw look like on a map?
A draw. Draws are caused by flash floods and can be found on flat terrain but are more often found along the sides of ridges. Contour lines indicating a draw are shaped like a “V” with the point of the “V” toward the head of the draw (high ground).