Earth Science: Geology, the Environment, and the Universe

Section 1: The Early Paleozoic

The Early Paleozoic

1
The __________ of an area is its ancient geographic setting.
A)morphology
B)paleogeography
C)geology
D)paleoecology
2
A __________ is a repeating sequence of sedimentary facies that record change in sea level.
A)delta
B)glacial till
C)cyclothem
D)clastic wedge
3
What type of process is demonstrated in the figure?
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A)aggression
B)subgression
C)transgression
D)regression
4
Why is the beginning of the Cambrian called the Cambrian explosion?
A)because there were only active margins
B)because there were still a significant number of meteor impacts
C)because of the intense volcanic activity
D)because there was a significant increase in the diversity of life
5
What causes the type of sedimentation shown at the far right of the figure?
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A)carbonate-rich sediments
B)clay-rich sediments
C)gravel-rich sediments
D)sand-rich sediments
6
A __________ occurs when sea level rises and the shoreline moves inland.
A)transgression
B)regression
C)orogenic event
D)passive margin
7
The __________ is a famous sedimentary deposit containing fossils with hardparts and also preserved softparts from the Cambrian Period.
A)Cambrian Shale
B)Cyclothem
C)Burgess Sandstone
D)Burgess Shale
8
What part of Laurentia was above sea level at the end of the Proterozoic?
A)the Taconic Range
B)the passive margin
C)the Great Divide
D)the Transcontinental Arch
9
Which vertical sequence is evidence of a transgression?
A)limestone-basalt-shale
B)sandstone-limestone-sandstone
C)sandstone-shale-limestone
D)limestone-shale-sandstone
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