Terms in this set (64)
The movement of any material, such as rock, soil, or snow down-slope. It is controlled by the force of gravity and can occur rapidly or slowly.
Happens when a group of loose rocks fall down a steep slope.
Sudden and rapid movement of a large amount of material down slope -example is a slump.
Occurs when a block of material moves down-slope over a curved surface.
Angle of Response
Is the steepest angle, or slope, at which loose material will not slide down-slope.
Is a rapid movement of a large mass of mud. Occurs in mountainous regions after a dry season is followed by heavy rains
Mudflows that come from volcanic action, and also are as thick as concrete.
The extremely slow movement of material down-slope
Energy and Rocks
What makes sand?
Place where land and a body of water meet. (Waves play a role in building up and breaking down shoreline)
What creates waves?
How hard the wind is blowing.
What does the size of wave depends on?
Hundreds and thousands of kilometers
Waves can travel how long?
Waves that travel in groups.
The time interval between breaking waves (10-20 seconds long)
Solid rock and throw broken rocks against the shore
What can crashing waves break?
Offshore columns of resistant rock that were once connected to the mainland, leaving behind isolated columns of rock
Forms when waves cut large holes into fractured or weak rock along the base of sea cliffs. Are common in cliffs composed of sedimentary rock.
Forms when wave action continues to erode a sea cave, cutting completely
Finger shaped projections that form when cliffs made of hard rock erode more slowly that surrounding rocks
Wave Cut Terraces
Forms when a sea cliff is worn back, producing a nearly level platform beneath the water at the base of a cliff
Carries sand, rock fragments, dead coral, and shells. Often this material is deposited on shoreline and forms a beach.
An area of the shoreline made up of material deposited by waves.
Sand made up of mineral quartz
Sand eroded by volcanic lava
Sand made of tiny pieces of broken seashells
Sand made of pebbles and boulders
Most waves approach the beach at a slight angle and retreat in a different _______
Long Shore Current
Water current that moves the sand in a zigzag pattern along the beach
Is an underwater or exposed ridge of sand, gravel, or shell material
An exposed sand bar that is connected to the shoreline. Example-Cape Cod Massachusetts
The movement of sand or other sediments by short jumps and bounces that is caused by wind or water
A form of wind erosion in which fine, dry soil particles are blown away
Surface consisting of pebbles and small broken rocks
Areas where there is little vegetation, the wind may scoop out depressions in the landscape
The grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles
Very fine sediments deposited by the wind found far away from their source
A mound of wind deposited sand that keeps its shape even though it moves
A dune usually has a gently sloped side and a steeply sloped side
Area where ice leaves by melting, calving, or evaporating
Highest and coldest part of a glacier where snow buildup occurs
Ridge or divide between glacial valleys
Eroding land through plucking and abrasion
Bowl like depression at the head of a glacial valley
Gaping crack in the surface of a glacier
Tributary valley higher than the floor of the main valley
Pyramid-shaped peak eroded by 3 or more glaciers
Deep landlocked lake formed when a glacier retreats
Distinctive shaped valley eroded by glaciation
Steep-sided valley formed by stream erosion
Triangular body of sediment
Streamlined hill of glacial till built under ice
Snakelike ridge composed of glacial drift from streams
Bowl-like hole in glacial deposit formed by large blocks of ice melting
Area where melt water streams deposit sediment from a glacier
Debris accumulated at ice margin, marking furthest advance of a glacier
The general term used to describe all material carried and deposited by glaciers
Rock material that has been sorted and deposited in layers by water flowing from the melted ice-example: kettle
Unsorted rock material that is deposited directly by the ice when it melts-example moraines
Forms when 2 different valley glaciers with lateral moraines meet, Ridge of till in the middle of a valley glacier
Form along each side of a glacier, Ridge of glacial sediment along the sides of a glacier
Unsorted material left beneath a glacier
Form when eroded rock material is dropped at the front of the glacier
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