deposition

1
deposition
the dropping of sediment or particles by water,
wind, or ice
2
delta
a deposit of sediment that builds up at a
rivers mouth
3
flood-plain
a deposit of sediment in a flat area along the
banks of a river
4
barrier island
a long, narrow island that forms along the coast
5
sand dune
a mound of sand piled up by the wind
6
glacier
a huge sheet of slowly moving ice
7
moraine
a ridge of sediment and rock left behind when a
glacier melts
8
drumlin
a long oval shaped mound of soil and rock formed
from glacial deposits
9
lava
hot, melted rock that pours from volcanoes
10
magma
molten rock in a volcano
11
fault
a crack in the rock of Earths crust
12
weathering
The breakdown of rock at or near the earths
surface Chemical Weathering e.g dissolution by
acid rain Physical Weathering e.g. freeze
thaw action Biological Weathering e.g lichen
growth
13
mechanical weathering
a type of weathering that breaks rock into
smaller pieces without changing it chemically
14
chemical weathering
a type of weathering that changes rock into one
or more new substances
15
erosion
the movement of weathered rock from place to
place
16
erosion
17
sea stack
pillars of stone in the sea that form
headlands
18
headland
a point of land that juts out into the ocean
19
sea arch
a formation made when waves first carve away
softer rock in the headland
20
dam
a structure built across a river to control its
flow
21
groin
a structure build at right angles to the beach
to control beach erosion
22
seawall
a structure build parallel to the shore to
control beach erosion
23
beach nourishment
the placement of additional sand on beaches to
protect them from erosion
24
contour plowing
the plowing of crop rows across hillsides to
prevent erosion
25
terracing
the planting of crops on terraces built into
steep hillsides to prevent erosion
26
storm drain management
system of drains that prevents flooding
during heavy rainstorms