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Geology Final Review
Test Description: Geology Semester Project!
Instructions: Answer all questions to get your test result.
1) A bed is a...?
A
single layer of sedimentary rock with a distinct top and bottom
B
multiple strata together
C
place to sleep!
D
a sequence of strata that is distinctive enough to be a traced as a unit
2) Which of the following is NOT an example of bed-surface markings?
A
Mud Cracks
B
Turbidite
C
Fossils
D
Scour Marks
3) If you observed a layer of fine grained, coal deposits, what could you tell about the ecosystem when it was deposited?
A
Ocean; shallow water level
B
Swampy; lower water level
C
Ocean; deep water level
D
Beach; high water level
4) If you observed a layer of well-sorted, medium-grained sandstone, what could you tell about the ecosystem it was deposited in?
A
Delta Deposits
B
Coastal Beach
C
Lake
D
Deep Marine
5) What does uniformitarianism suggest?
A
Sediments on the Earth settle out of fluids in a gravitational field
B
Beds must be composed of the same rock to be considered a strata
C
In sedimentary layers, each layer must be younger than the one below
D
Physical processes that happened in the past also happen today at the same rate
6) If one rock (A) is cutting through another rock (B), which is the older rock?
A
Pick either A or B
B
B
C
A
D
Pick A or B
7) Which of the following is NOT a main type of uncomformity?
A
Angular
B
Linear
C
Discomformity
D
Nonconformity
8) What is closure temperautre?
A
The temperature at which electrons stop moving
B
The temperature at which ions cannot move in or out of a mineral quickly
C
The temperature at which pyroclastic flows can form
D
The temperature the lab must be kept at in order to get an accurate reading
9) What is it called when sea level lowers?
A
Diagenesis
B
Regression
C
Subsidence
D
Transgression
10) What is nonconformity?
A
Where mafic rock looks like felsic rock to the eye
B
Rocks deposited by glaciers
C
An unconformity parallel to the two sedimentary sequences it separates
D
Where sedimentary rocks overlie intrusive igneous rocks or metamorphic rocks
11) What is a stratigraphic formation?
A
The vertical sinking of the Earth’s surface in a region, relative to a reference plane
B
A succession of several layers or beds together
C
An interval of stata composed of a specific rock type or group that can be traced over a broad region
D
A setting in which sediments accumulate
12) What is absolute age?
A
Age (in years) of a rock
B
Age at which bedding forms
C
Age at which a rock underwent metamorphasis
D
Age at which minerals in the rock were deposited
13) How do we determine absolute age?
A
Examine banding
B
Find the half-life
C
Identify nearby fossils
D
Radioactive Decay
14) What can the geologic column tell us?
A
What a place's ecosystem looked like at a given time period
B
How old the Earth is
C
A correlation of stratigraphic formations around the world in order to create a record of Earth's geologic history
D
Where dinosaurs lived
15) What is lithification?
A
The processes which separate rock
B
The deposition of organic-rich sediments
C
The proportion of clasts in a rock which are the same size
D
The transformation loose clasts into solid rock
*select an answer for all questions
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