Geo. Time Scale
Principles of Geology
Weathering, Erosion & Depostion
Constructive & Decstructive
Relative & Absolute Dating
100
Paleontologists think Earth is "BLANK" years old.
4.6 Billion years old
100
Which law supports that the layers of rock on top are usually younger than those below?
Law of superposition
100
What is the process: Weathering, Erosion or Deposition.
What is the driving force?
Penguins carrying pebbles to their future nest.
Process: Erosion
Driving force: Animal
100
Mountains
Constructive or destructive?
What force?
Constructive
Force: Tectonic plates
100
Is the following statement: Relative dating, Absolute dating or both
It is not exact
Relative Dating
200
The Cenozoic Era was known as the "Age of _______"?
Age of Mammals
200
What law supports that all rocks are originally laid down horizontally?
Law of horizontality
200
What is the process: Weathering, Erosion or Deposition.
What is the driving force?
A beach is formed on a coastline.
Process: Deposition
Driving force: Water
200
Canyons
Constructive or Destructive?
What force?
Destructive
Force: Water
200
Is the following statement: Relative dating, Absolute dating or both
Uses isotopes to measure
Absolute Dating
300
What is the name oldest Epoch?
Paleocene
300
What prinicple helps us understand the timing of events by stating that younger features cut across older features?
Law of cross cutting relationships
300
What is the process: Weathering, Erosion or Deposition.
What is the driving force?
A plant pushed through the cement.
Process: Weathering
Driving force: Living thing (plant)
300
Sand Dunes
Constructive or Destructive?
What Force?
Constructive
Force: Wind
300
Is the following statement: Relative dating, Absolute dating or both
Compares the layers of the earth
Relative dating
400
How many year ago did the Phanerozonic Eon begin?
541 million years ago
400
Which law supports igneous rock going through sedimantary rock as magma and cools?
Law of intrusion
400
What is the process: Weathering, Erosion or Deposition.
What is the driving force?
A U-Valley is cut between two mountains
Process: Weathering
Driving force: Glacier or ice
400
Island
Constructive or Destructive?
What Force?
Constructive
Force: Lava
400
Is the following statement: Relative dating, Absolute dating or both
Relies on evidence
Both
500
What is the name of the oldest Period?
Cambrian
500
Put these leayers in order from oldest to youngest.
C, B, A, D, E
500
What is the process: Weathering, Erosion or Deposition.
What is the driving force?
Process: Weathering (tearing down)
Driving force: Water
or
Process: Erosion (Carrying sediment away)
Driving Force: Water
500
Delta
Constructive or Destructive?
What Force?
Constructive
Force: Water
500
Is the following statement: Relative dating, Absolute dating or both
Dates the age of layers (rocks and Fossils)
Both