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Geol 103 Unit 1 Test Review
What was the process we just did called?
TRex lived 67 million years ago is an example of
Geol 103 Unit 1 Test Review
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Geol103
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Answers
1
TRex lived 67 million years ago is an example of
Speed Dating
Absolute Dating
Relative Dating
Radiometric Dating
2
What was the process we just did called?
Stratigraphy
Uniformitarianism
Cross Cutting
Inclusions
3
Why was Continental Drift not accepted
It contradicted the bible
No explanation of how continents could move
It was proven false
It did not explain mantle plumes
4
Which of the following ARE sources of Earth's internal heat? (2 correct, chose 1)
Heat from Radioactive Decay
Accretionary Heat
Solar Heat
Heat from Inner and Outer core interaction
5
Which rock can have a phaneritic texture?
Igneous
Sedimentary
Metamorphic
6
An element has a half life of 7 years. What ratio of parent element is left after 14 years?
1/2
1/4
1/8
1/16
7
Which unconformity is this
Angular Unconformity
Nonconformity
Anconformity
Disconformity
8
Which is FALSE about mid ocean ridges?
New crust is created
Creates basalt
At oceanic-oceanic divergent boundary
Old crust is recycled
9
Which time scale is the colored portion of this image:
Absolute time scale
Relative time scale
10
TRex lived in the Cretaceous period is an example of
Absolute time
Radiometrically dating rocks
Relative time
TV marketing
11
Which is NOT a tectonic plate boundary
Reform
Convergent
Transform
Divergent
12
Why do we see mostly mudstone and some sandstone in meandering rivers (why not conglomerate?)
Conglomerate is transported directly to deltas
Meanders deposit mud in flood planes and sand in point bars
The finer materials are transported farther from the source
False- we do see conglomerate in meanders
13
Which vertical succession (bottom to top) represents a marine transgression?
sandstone, shale, limestone
limestone, shale, sandstone
limestone, shale, limestone
sandstone, limestone, shale
14
Which was the first observation to lead to the theory of Plate Tectonics
Magnetic striping of the ocean floor
The volcanic eruption of Pinnatubo
The observation of plate tectonics on Mars
Mapping the ocean floor-it has geologic features!
15
How do we obtain absolute dates?
Observations of fossils
Radiometric dating
There is no way to obtain an accurate date
Extrapolating from the relative time scale
16
What is this an example of
Graded bedding
Cross bedding
17
What is the driving force of Plate Tectonics?
Earth's internal heat(thermal) and convection (density)
Earth's internal heat(thermal) and convection (density)
Earth's internal heat(thermal) and convection (density)
Earth's internal heat(thermal) and convection (density)
18
Assuming a lower layer is older than a layer above it is...
Radiometric dating
Superposition
Uniformitarianism
19
What can cross bedding tell us? (2 correct)
Direction of flow
Age of rock layer
Number of sand dunes
Type of depositional environment
20
Which is conglomerate
Igneous
Metamorphic
Sedimentary
21
Can we radiometrically date sedimentary rocks?
No
Yes
22
How does knowing the half life of an element help determine an age?
It does not help
You can calculate how long it has been decaying
You can estimate how many daughter isotopes there are
23
Which are the main sources of rock transportation
Gravity
Biological
Water
Air
24
Which are evidences for the Big Bang Theory?
Abundance of Hydrogen
Background Radiation
Redshift of galaxies
Newtons 3rd law
25
Which is Gneiss
Metamorphic
Igneous
Sedimentary
26
What is the difference between a mineral and a rock?
Minerals have more than one type of bonding
Minerals grow, Rocks form in volcanoes and from sediment
Rocks are aggregates of minerals
27
Which came first?
Thin white bands
Thick pink band
Grey rock
28
Which is TRUE
Electrons are negatively charged and outside of the nucleus
Neutrons are neutrally charged and in the nucleus
The number of neutrons determines Isotopes
Protons are positively charged and in the nucleus
29
What is the physical property of the lithosphere?
Solid
Solid, rigid
Liquid
Soft, plastic
30
What are the COMPOSITIONAL layers of the Earth?
Lithosphere, Asthenosphere, Mesosphere, Out. Core, In. Core
Crust, Mantle, Core
31
Which is NOT evidence for Continental Drift
Fit of Continents
Creation of crust at mid ocean ridges
Distribution of fossils
Paleoclimate
32
Which is Granite
Sedimentary
Igneous
Metamorphic
33
Which is FALSE about mountain ranges
Creates basaltic crust
Happen at divergent boundaries
Happen at continental-continental boundaries
Happen in convergent boundaries
34
What kind of rock has a clastic texture?
Granite
Shale
Gneiss
Rock salt
35
Which is Sandstone
Metamorphic
Sedimentary
Igneous
36
Which is NOT evidence for Plate Tectonics?
Seismic distribution
Mantle plumes
Symmetry of ocean floor
Age of Ocean Floor
37
Which has been transported farthest from its source?
Glacial till
Sandstone
Breccia
Conglomerate
38
What depositional environment do we commonly find conglomerate and sandstone in?
Eolian
Fluvial-Meandering stream
Marine
Fluvial-Braided Stream
39
Which is FALSE about Subduction Zones
Can produce volcanoes
Old crust is recycled
Happens at oceanic-oceanic and oceanic-continental bounds
Mountain ranges are built
40
What is this an example of
Ripple marks
Dessication cracks
Raindrop marks
Cross bedding
41
The time it takes for a radioactive element to decay to half of its original make up is
Radiometric dating
Half life
Parental decay
Radioactive decay
42
Which depositional environment did this form in?
Eolian
Lacustrine
Marine
Fluvial
43
Concluding
that a depositional environment was a beach by observing sandstone is an example of
Naturalism
Curation
Stratigraphy
Uniformitarianism
44
What affects the main properties of a mineral?
The environment they form in
The rocks that they are in
Type of bonds that hold the molecules together
45
Which is NOT an abundant element found in Earth's crust
Aluminum
Nitrogen
Silicon
Oxygen
46
Which is NOT a type of fossil preservation
Replacement
Cast/Mold
Plutonization
Permineralization
47
Which is a trace fossil
Coprolite
Teeth
Bones
Tracks
48
Which is Limestone
Metamorphic
Igneous
Sedimentary
49
What can you tell from this strata (D)
Ocean Transgression
Static Ocean
Walther's Law
Ocean Regression
50
What depositional environment do we find sandstone with thin cross beds?
Fluvial-braided stream
Fluvial-meandering stream
Eolian
Marine
51
Where do hot spots occur?
At mid ocean ridges
At mountain ranges
They pop up wherever
At trenches
52
How do inclusions help us develop relative age?
The fragments must be older than the host rock
It does not help-not enough information given
The rocks must be older than the fragment
53
Why do we NOT use Carbon 14 to radiometrically date old rocks?
We cannot detect its daughter isotopes
It's half life is only 5,700 years
It is not radioactive
