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ROCK LAYERS AND FOSSILS
Test Description: NYS Regents questions on relative dating and sequencing
Instructions: Answer all questions to get your test result.
1) According to the rule of cross-cutting, a fault is always ___________ the rock layers it cuts through.
A
older than
B
below
C
younger than
D
above
2) Devonian bedrock is found on top of Carboniferous bedrock. Which of the following would be true?
A
The rock layers were faulted.
B
The rock layers were eroded away
C
The rock layers were tilted
D
The rock layers were overturned.
3) Contact metamorphism, when found within rock layers, is proof that
A
The rock it made contact with is older
B
The rock it made contact with is younger
C
The rock it made contact with is basalt
D
The rock it made contact with became sandstone
4) The index fossil, Hexamoceras, is found in a layer of shale. If no overturning has occurred, what index fossil could be found in the rock layers found below it
A
Cryptolithus
B
Bothriolepus
C
Phacops
D
Centrocrinus
5) The principle of Uniformitarianism means that
A
The geologic events that we see happening today have happened in the past
B
The extinctions of the past have removed most forms of life ever in existence.
C
The rock pattern and sequence across NYS is the same
D
Fossils of the past have the same characteristics as the living organisms do today
6) Which of the following best describes the principle of superposition?
A
The oldest rocks are at the top of rock layers, unless overturning has occurred.
B
The oldest rocks are found at the bottom of rock layers, unless overturning has occurred.
C
The youngest rocks are found at the bottom of rock layers, unless overturning has occurred.
D
Rock layers cannot be overturned
7) Listed from bottom to top, which of the following sequences would be rock layers that were not overturned?
A
Carboniferous, Permian, Silurian
B
Jurassic, Triassic, Cretaceous
C
Devonian, Silurian, Ordovician
D
Cambrian, Ordovician, Silurian
8) The matching up of rock layers based upon similar fossils, rock sequence and rock type is called
A
correlation
B
uniformitarianism
C
superposition
D
cross-cutting
9) If an intrusion cuts through layers of sedimentary rock and there is a fault through the intrusion, what is the oldest feature in the rock pattern?
A
The intrusion
B
The fault
C
The sedimentary rock layers
10) What features can be used to correlate rock layers across a fault?
A
The index fossils in the rocks and the type of rock
B
The rock layer sequence and the rock's density
C
The type of rock and the mineral composition of the rock
D
The color and texture of the rocks
*select an answer for all questions
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