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2007-01-08 05:17:35 · 14 answers · asked by John71 3 in Environment

14 answers

a bar made of sand.

2007-01-08 05:19:15 · answer #1 · answered by tony h 2 · 0 1

A bar is a linear shoaling landform feature within a body of water. Bars tend to be long and narrow (linear) and develop where a current (or waves) promote deposition of granular material, resulting in localized shallowing (shoaling) of the water. Bars can appear in the sea, in a lake, or in a river. They are typically composed of sand, although could be of any granular matter that the moving water has access to and is capable of shifting around (for example, soil, silt, gravel, cobble, shingle, or even boulders).
Additionally, bars that occur at or off the shoreline of a sea or a lake are related to beaches and might be considered offshore features of a beach (Bascom, 1980). At times when larger waves attack the beach berm, some of the beach material is redistributed offshore to become a longshore bar or sandbar, possibly visible at low tide. This bar forms (sometimes seaward of a trough) where the waves are breaking, because the breaking waves set up a shoreward current with a compensating counter-current along the bottom. Sand carried by the offshore moving bottom current is deposited where the current reaches the wave break (Bascom, 1980). Other longshore bars may lie further offshore, representing the break point of even larger waves, or the break point at low tide.
Take care.

2007-01-08 05:23:05 · answer #2 · answered by Mary R 5 · 0 0

SAND BAR. A bar at the beach where you can take off your shoes and put your feet in the sand, while you drink!!! Just kidding.

–noun-- a bar of sand formed in a river or sea by the action of tides or currents.


Sand bar is that shallow sand that accumulates near mouths of rivers and or water currents.

This sand bars are frequently found by inexperienced boaters who pay no attention where they are going but the shore line or the sky. It is always funny as long as you are not on that boat.

2007-01-08 05:35:23 · answer #3 · answered by Anonymous · 0 0

A sand bar is an underwater feat. As there is erosion and sand shifting above the waterline..this is also true beneath the waterline....currents and tides create water motions thus suspending and shifting sand from faster moving water to slower waters...as the water slows the sand is deposited and creates sand bar...similar to sand dunes created by wind above water...in some cases when the tide goes out these sand bars are visible.... have a great day ...hope this helps....

2007-01-08 05:22:56 · answer #4 · answered by yahoo 6 · 0 0

A "bar" of sand in the middle of a river or waterway. The sandbar will move as the water changes in a river, it will grow or diminish over time, or can just show up one day and not be there the next, it all depends of the current strength and the meander of the water.

We spend a lot of time on the Colorado River between Needles California and Lake Havasu Arizona. There's a huge Sandbar that many boaters and people hang out on, it's kind of an Island on the river.

2007-01-08 05:21:10 · answer #5 · answered by kb6jra 3 · 0 0

A bar is a linear shoaling landform feature within a body of water. Bars tend to be long and narrow (linear) and develop where a current (or waves) promote deposition of granular material, resulting in localized shallowing (shoaling) of the water. Bars can appear in the sea, in a lake, or in a river. They are typically composed of sand, although could be of any granular matter that the moving water has access to and is capable of shifting around (for example, soil, silt,
In laymans terms it is an area of sand (or what ever is deposited from the waters bottom) that is formed by moving water which has steadly deposited material until it juts out of the water.
http://en.wikipedia.org/wiki/Sand_bar

2007-01-08 05:20:28 · answer #6 · answered by Anonymous · 0 0

Though obviously a bar of sand, it may come from the fiords of Scandinavia, where "crossing the bar" a submerged feature at the head (or beginning) of the fjord, there by glaciation perhaps in Norway, which required shallow-draft vessels (ships) in the historical tradition of the "Vikings" who spoke Norse, to "cross the bar" i.e., that which impedes progress. The rest, is history.

2007-01-08 05:37:49 · answer #7 · answered by George M Cohand 1 · 0 0

A ridge of sand formed in a river or along a shore by the action of waves or currents.

2007-01-08 07:52:30 · answer #8 · answered by Professor Armitage 7 · 0 0

sand bar
–noun
a bar of sand formed in a river or sea by the action of tides or currents.

2007-01-08 05:19:15 · answer #9 · answered by Anonymous · 0 0

I cannot say exactly without using a dictionary but it is a build up of sand not far from the shoreline or beach. It is generally causedby erosion and underlying water currents.

2007-01-08 05:21:05 · answer #10 · answered by Brian H 4 · 0 0

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