Help me I need this for a project:Please tell me if these were formed by erosion or deposition:?

Question

SEA CLIFF, GORGE, V-SHAPED VALLEY, BEACH, STALACTITE AND STALAGMITE, CANYON, FLOOD PLAIN, SNAD DUNES, DELTA and please tell me if there are any other agents of gradation except erosion and deposition.PLEASE TELL ME THE FORMATION OF 2 FEATURES BY WIND ALSO. THANKS FOR YOUR HELP. I WILL LOVE YOU IF YOU DO THIS FOR ME, BECAUSE I AM A FAILURE AT SCHOOL, AND I WANT TO GET FULL MARKS IN THE PROJECT AT LEAST. THANKS.

Answer 1

Weathering by dissolution and mechanical degradation of rocks, and erosion by water, wind and ice shape the landscape, so features like sea cliff, gorges, valley and canyons are all erosional features.  

Stalagtites and stalagmites are formed by the deposition of aragonite (calcium carbonate) from ground water evaporating in caves and leaving a film of material.  Flood plains are caused by rivers overflowing their banks, and depositing clay and sand on the surrounding plains, and sand dunes are formed by sand being moved by wind and piled up into dunes, so these are depositional features.

Not sure what you mean by agents of 'gradation' are you sure that is right: the agents of weathering (the break down of rocks into smaller particles and soil) are water, especially acid water from humus in the soil, wind, ice (freeze/thaw) and plants. The main agents of erosion (the transport of weathered rock material) and deposition are water, wind and ice. Erosion and deposition are processes not agents. Erosion and deposition ultimately lead to a levelling of the landscape and without periodic tectonic reactivation, they would eventually lead to an almost flat landscape, with all the hills reduced and the valleys filled by sediment.

Sand dunes are wind deposits, but wind is also an agent of weathering and erosion, so features like facetted stones, undercut standing stones and deflation surfaces are caused by wind.

Answer 2

This is very simple stuff my friend. Normally I'd let you work it out but, I am feeling generous.

Sea Cliff - Erosion (waves hitting the cliff wearing it away.

Gorge - Erosion (water fall falling over edge pounding ground at base of drop, wearing away material causing the "cliff" to retreat)

V-shaped Vally - Erosion (water cutting down the ground over a long time)

Beach - Deposition (Material being dumped from the sea)

Stalactite and Stalagmite - Deposition ( Water eroding limestone rocks releasing lime that is deposited and formed from droplets of water.)

Canyon - Erosion (same as V-Valley)

Flood Plain - ACTUALLY BOTH (Material eroded during low tide and material deposited at high tide.

Sand Dunes - Deposited (same as beach)

Delta - Deposited (Eroded material from up stream is dropped as the waters speed decreases)

Wind Erosion - Rocks in desert eroded because wind picks up sand which is hurled against the rock and Wind causing soil erosion, drying it out, blowing it away.

Hope this helped. I took GCSE Geography and I was like the best at this topic. (And Agriculture sadly)

Answer 3

erosion :SEA CLIFF, GORGE, V-SHAPED VALLEY,CANYON, FLOOD PLAIN.

CANYON, FLOOD PLAIN

deposition: BEACH, STALACTITE AND STALAGMITE,SNAD DUNES, DELTA .

land formations carused by wind are sand dunes only(though there are different type of sand dunes likes longtitudinal, transverse,star,elliptical,domes ) .Somtimes rocks have been sculpted by wind but they have got no special names .

The major agents of gradation are running water, ice, gravity, and wind

My best wishes for your project.

Answer 4

Do u know what,take each of them mentioned above one by one.In each case try to explain erosion  and deposition and see if the features constitute to that of erosion and deposition.This way u will become a scorer in no time.

Answer 5

I agree with the previous answer giving listings of the types, but would add that there are names for some wind eroded features - zeugens (when the bedding planes of rocks lie horizontal, or nearly so), yardangs (when they are vertical, or nearly so) and mushroom rocks (isolated rock pillars with narrow bases).