Weathering & Erosion Flashcards
1
Q
Erosion
A
- Move from one place to another get blown or washed away
* Caused by water, wind, glaciers, & gravity
2
Q
Deposition
A
- They lay down eroded sediment
- causes several formations
- deltas, meander, oxbow lakes,
- flooding plains (Killbuck)
3
Q
Agents of erosion
A
- Water
- Wind
- Glaciers
- Gravity
4
Q
Deltas
A
Fan shape deposit at the end of a stream
5
Q
Meanders
A
A curve in a river
6
Q
Oxbow lakes
A
A meander that gets cut off from the lake
7
Q
Weathering examples
A
- Rain washing soil away from a hill side
* Breaking down of rocks
8
Q
Erosion Examples
A
- Layers of sediment forming at the bottom of the ocean
* Movement of sediment
9
Q
Deposition examples
A
- Muddy water carried away by a fast river
* Settling of sediment
10
Q
Topographic maps
A
- 2-Dimensional model of the earths surface
- Also known as contour maps
- Connects points of equal elevation
- Show elevation and shape of the land
11
Q
Relief
A
The difference between high and low elevations
12
Q
Contour interval
A
The difference in elevation ( 20 FT) the difference must be the same between all lines
13
Q
Index contour
A
Every 5th line is printed darker and has the elevations printed on it
14
Q
Rules of contours
A
- Never cross
- Formed closed loops even if not shown on the map
- bend upstream
15
Q
Weathering
A
- Process that works to brake down rock
- Destructive process
- may be fast or slow depends on several factors
