Stratigraphy
Principal of Relative Dating
Relative Dating
Relative Age
Random
100
According to the law of superposition, which layer is the youngest?
A
B
C
A
100
Relative dating of rock layers tells us that the deeper we dig, _______.
the younger the rocks get
the smellier the rocks get
the harder the rocks get
the older the rocks get
the older the rocks get
100
geWhat is a fossil that is useful for dating and correlating the strata in which it is found?
a petrified fossil
a trace fossil
a cast fossil
an index fossil
an index fossil
100
What is relative age?
A. The geologic age of a fossil, rock or geologic feature defined relative to other fossils, rocks or features
B. The geologic age of a fossil based on when the relatives of that fossil died
C. The geologic age of a fossil, or geologic event expressed in units of time
D. How old your mom is
The geologic age of a fossil, rock or geologic feature defined relative to other fossils, rocks or features
100
Identical fossils in South America and Africa supported which theory?
A. big bang theory
B. theory of plate tectonics
C. theory of evolution
B. theory of tectonic plates
200
Describe absolute age.
A.number of years that have passed since the rock formed. It provides the rock with a specific age.
B.Sedimentary Age
C.Relative Age
D. An Intrusion
A. number of years that have passed since the rock formed. It provides the rock with a specific age
200
The Law of Superposition helps scientists to determine what?
The absolute age of rock layers
The age of fossils
The relative age of rock layers
the super powers of rocks
The relative age of rock layers
200
What is called when lava breaks through layers?
A. tilting
B. intrusion
C. extrusion
D. Deposit
B. Intrusion
200
The theory of continental drift was not widely accepted by scientists because it could not explain how continents moved. Which theory later explained this?
A. continental drift theory
B. theory of evolution
C. theory of tectonic plates
The theory of tectonic plates
200
What is Pangaea?
A. the process by which tectonic plates move around earth
B. the scientist who first discovered tectonic plates
C. the name of an ancient supercontinent
C. the name of an ancient supercontinent
300
Which rock layer in the diagram seems to be the oldest?
F
E
B
A
A
300
State the geologic event that creates an unconformity?
Weathering and Erosion
300
According to the law of superposition, the oldest fossils are found
At the top of the rock layers
Near the bottom of the rock layers
In the middle of the rock layers
Somewhat near the surface
Near the bottom of the rock layers
300
Which is not a method scientists use to determine the age of Earth?
A. radioactive decay
B. core rock samples
C. evolution
D. law of superposition
C. evolution
300
What sport does Ms Morales son play?
Soccer
400
How do scientists measure the absolute age of a rock?
A. examining the composition of the rock
B. measuring the amount of isotope in the sample
C. comparing rock layers to the ones above and below
B. measuring the amount of isotope in the sample
400
Which type of dating method can be used on rock layers by applying the Law of Superposition?
relative dating
absolute dating
radioactive dating
radiometric dating
relative dating
400
Which of the following is the oldest intrusion?
Intrusion D
400
The radioactive decay of material can be used to determine the age of fossils. This is called
A.complete dating
B.absolute dating
C.relative dating
D. fossil dating
B. absolute dating
400
A solar eclipse will typically happen during which moon phase and why?
New moon, the moon has to block the Sun so it has to be between the Sun and Earth.
S M E
500
Name the 5 prinicples of relative Dating we have learned:
Principal of ......
Principle of Superposition
Principal of Horizontality
Principle of crosscutting
Principle of Inclusion
Principle of Unconfomity
500
What is contact Metamorphic? (we see it when there is an igneous intrusion)
Intrusion of magma causes change in the rock close to it
500
What is the difference between absolute and relative dating?
Absolute dating uses exact numbers to tell age whereas relative compares rock layers to another
500
The time is take for half of a radioactive isotopes to decay into stable isotopes is called the
a.isotope decay
b. radiometric dating
c.half life
d. absolute age
c.half life
500
For which of the following object(s) can we use Carbon-14 to identify the age?
a) A tree that is 10 years old
b) A dinosaur fossil 72 million years old
c) A fossilized shell (CaCO3) 50,000 years old
d) A fossilized shell (CaCO3) 500,000 years old
e) A mammoth fossil 20,000 years old
f) An ice core 25,000 years old
C,E,F
ESRT pg 15
- Carbon 14 can be used for organic material, glacial ice containing... with an age range of 100-70,000 years old