Weathering, Erosion, and Deposition
Water Erosion and Deposition
Geological Time 1
Geological Time 2
100
Where do most of the real changes on the Earth occur?
Along tectonic plate boundaries
100
What is the single most influential agent of Erosion?
Water
100
What is the fastest agent of erosion?
Glaciers
100
During what time period did human become the dominant force on the planet?
Cenozoic
200
What are the three biggest non-tectonic factors that change the surface of the Earth?
Weathering, Erosion, and Deposition
200
How could you tell the difference between an immature/young river and an old/mature river?
Immature river flows quickly, has a v shape, and flows in a straight line
Mature river flows slowly, has a u shape, and flows ina curvy pattern
200
What is Tree Ring Dating? Explain.
Is it a form of absolute or relative dating?
Absolute dating
Cutting into tree rings to observe the weather conditions of the past
200
What time period are we in right now?
Cenozoic
300
What are three agents of erosion?
Water, gravity, wind, ice
300
On the picture below, where would the water be moving faster and where would the water be moving slower?
Moving faster at B
Moving slower at A
300
What is the difference between absolute and relative dating?
Absolute dating finds the exact age of something
Relative dating finds out if one thing is younger or older than another thing
300
What is Ice Coring? Explain.
Is it a form of absolute or relative dating?
Absolute dating
Scientists drill into glaciers to study the visible layers left over from various years
400
What is the difference between a landslide and mudslide?
In a mudslide the materials are water soaked
400
What three things make up the Load of a water current?
Anything dissolved in the water
Anything suspended in the water like sand
Anything pushed along the bottom of the moving water source like larger rocks
400
What are two things the fossil record has revealed to scientists?
99% of living things have died, life forms get simpler as you go further back in time, fossil reveal evidence of evolution, fossil show clear record that things have lived in the past
400
What is radiometric dating? Explain.
Also Is it used to find relative or absolute age of something.
Absolute dating
Using the rate of radioactive decay of some elements to find the age of a given sample
500
What is the difference between Wind Deflation and Abarasion?
Deflation is when wind picks up small particles and blows them around
Abrasion is when wind pushes larger rocks across the ground
500
What are the four factors that will affect how much water runs off in a certian location?
Amount of plant growth, slope of the land, porosity of the land, amount of water released
500
What is lake/ocean sediment dating? Explain.
Is it a form of relative or absolute dating?
Absolute dating
Scientist drill into the bottom of a lake/ocean to get a core and observe the layers deposited over many years
500
Observe the picture of rock layers below. Put the rock layers in order from oldest to youngest and then identify any unconformities. Also list when any faults occured.
C, B, A, D, E
Unconformity at top layer