Mouth bar

Mouth bar

A mouth bar is a bar in a river that is typically created in the middle of a channel in a river delta.[1] It is created by a positive feedback between mid-channel deposition and flow divergence. As the flow diverges near the ocean, sediment settles out in the channel and creates an incipient mouth bar. As flow is routed around the incipient bar, additional sediment is deposited on the incipient bar. This continued process results in the formation of a full-fledged mouth bar, which causes the channel to bifurcate. This continued process leads to the characteristic fractal tree pattern found in some prograding river-dominated deltas.

References

  1. ^ Edmonds, D. A.; Slingerland, R. L. (2007). "Mechanics of river mouth bar formation: Implications for the morphodynamics of delta distributary networks". Journal of Geophysical Research 112: F02034. Bibcode 2007JGRF..11202034E. doi:10.1029/2006JF000574. 



Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Mouth Music (band) — Mouth Music Origin Edinburgh, Scotland Genres Celtic fusion, folk, worldbeat, world music, pop Years active 1988–1997 2001–present Labels …   Wikipedia

  • Bar — may refer to:* A rod/stick, pole, or handrail made of structural steel ** Grab bar ** Rebar * an ingot or gold bar * Bar (diacritic), a line through a letter used as a diacritic * Bar (establishment), a retail establishment which serves alcoholic …   Wikipedia

  • Bar — (b[aum]r), n. [OE. barre, F. barre, fr. LL. barra, W. bar the branch of a tree, bar, baren branch, Gael. & Ir. barra bar. [root]91.] 1. A piece of wood, metal, or other material, long in proportion to its breadth or thickness, used as a lever and …   The Collaborative International Dictionary of English

  • Bar shoe — Bar Bar (b[aum]r), n. [OE. barre, F. barre, fr. LL. barra, W. bar the branch of a tree, bar, baren branch, Gael. & Ir. barra bar. [root]91.] 1. A piece of wood, metal, or other material, long in proportion to its breadth or thickness, used as a… …   The Collaborative International Dictionary of English

  • Bar shot — Bar Bar (b[aum]r), n. [OE. barre, F. barre, fr. LL. barra, W. bar the branch of a tree, bar, baren branch, Gael. & Ir. barra bar. [root]91.] 1. A piece of wood, metal, or other material, long in proportion to its breadth or thickness, used as a… …   The Collaborative International Dictionary of English

  • Bar sinister — Bar Bar (b[aum]r), n. [OE. barre, F. barre, fr. LL. barra, W. bar the branch of a tree, bar, baren branch, Gael. & Ir. barra bar. [root]91.] 1. A piece of wood, metal, or other material, long in proportion to its breadth or thickness, used as a… …   The Collaborative International Dictionary of English

  • Bar tracery — Bar Bar (b[aum]r), n. [OE. barre, F. barre, fr. LL. barra, W. bar the branch of a tree, bar, baren branch, Gael. & Ir. barra bar. [root]91.] 1. A piece of wood, metal, or other material, long in proportion to its breadth or thickness, used as a… …   The Collaborative International Dictionary of English

  • Mouth to Mouth (Levellers album) — Mouth to Mouth Studio album by The Levellers Released 1997 …   Wikipedia

  • bar — bar1 [bär] n. [ME & OFr barre < ML barra, bar, barrier, prob. < Gaul * barros, the bushy end, akin to Ir bar, branch < IE * bhoros, cut wood < base * bher , to cut with a sharp tool] 1. any piece of wood, metal, etc. longer than it is …   English World dictionary

  • BAR HEDYA — (fl. first half of the fourth century), Babylonian scholar. Bar Hedya was one of the neḥutei, amoraim who moved between Babylonia and Ereẓ Israel, transmitting the rabbinical traditions of both countries. He testified, among other things, that in …   Encyclopedia of Judaism

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”