what is physical geology? - arizona state...
TRANSCRIPT
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What is Physical Geology?
Northern Wasatch Range, Salt Lake City, Utah
http://www.learner.org/resources/series28.html?pop=yes&pid=9#1
Sunday, August 18, 13
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Rocks
Igneous
Metamorphic
IgneousIgneous
Sedimentary
Igneous
Volcanic (microscopic)
magical
cute
2
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Volcanoes
2008 Chaiten Volcano, Chile
2006 Mount Saint Helens
1984 Pu’u O’o Volcano, Hawaii
3
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Volcanoes
2008 Chaiten Volcano, Chile
2006 Mount Saint Helens
1984 Pu’u O’o Volcano, Hawaii
What are the signs that indicate an eruption is imminent?
3
Sunday, August 18, 13
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Volcanoes
2008 Chaiten Volcano, Chile
2006 Mount Saint Helens
1984 Pu’u O’o Volcano, Hawaii
What are the signs that indicate an eruption is imminent?
What is the catalyst for the eruption?
3
Sunday, August 18, 13
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Volcanoes
2008 Chaiten Volcano, Chile
2006 Mount Saint Helens
1984 Pu’u O’o Volcano, Hawaii
What are the signs that indicate an eruption is imminent?
What is the catalyst for the eruption?
What is the source and composition of the Magma?
3
Sunday, August 18, 13
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Volcanoes
2008 Chaiten Volcano, Chile
2006 Mount Saint Helens
1984 Pu’u O’o Volcano, Hawaii
What are the signs that indicate an eruption is imminent?
What is the catalyst for the eruption?
What is the source and composition of the Magma?
What controls the location of the Volcano?
3
Sunday, August 18, 13
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Volcanoes
2008 Chaiten Volcano, Chile
2006 Mount Saint Helens
1984 Pu’u O’o Volcano, Hawaii
What are the signs that indicate an eruption is imminent?
What is the catalyst for the eruption?
What is the source and composition of the Magma?
What controls the location of the Volcano?
Why are some eruptions violent and others peaceful?
3
Sunday, August 18, 13
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Volcanoes
2008 Chaiten Volcano, Chile
2006 Mount Saint Helens
1984 Pu’u O’o Volcano, Hawaii
What are the signs that indicate an eruption is imminent?
What is the catalyst for the eruption?
What is the source and composition of the Magma?
What controls the location of the Volcano?
How have these answers changed in time and space?
Why are some eruptions violent and others peaceful?
3
Sunday, August 18, 13
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Deformation, Faults, and Earthquakes
San Andreas fault
1954 Fairview Peak rupture scarp
2008 Sichuan China Earthquake Devastation
4
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Deformation, Faults, and Earthquakes
San Andreas fault
1954 Fairview Peak rupture scarp
2008 Sichuan China Earthquake Devastation
How fast are faults moving?
4
Sunday, August 18, 13
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Deformation, Faults, and Earthquakes
San Andreas fault
1954 Fairview Peak rupture scarp
2008 Sichuan China Earthquake Devastation
How fast are faults moving?
What is the total magnitude of movement?
4
Sunday, August 18, 13
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Deformation, Faults, and Earthquakes
San Andreas fault
1954 Fairview Peak rupture scarp
2008 Sichuan China Earthquake Devastation
How fast are faults moving?
What is the total magnitude of movement?
How are faults distributed in space?
4
Sunday, August 18, 13
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Deformation, Faults, and Earthquakes
San Andreas fault
1954 Fairview Peak rupture scarp
2008 Sichuan China Earthquake Devastation
How fast are faults moving?
What is the total magnitude of movement?
How are faults distributed in space?
How much of the fault ruptures during and EQ?
4
Sunday, August 18, 13
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Deformation, Faults, and Earthquakes
San Andreas fault
1954 Fairview Peak rupture scarp
2008 Sichuan China Earthquake Devastation
How fast are faults moving?
What is the total magnitude of movement?
How are faults distributed in space?
How much of the fault ruptures during and EQ?
How much ground shaking might we expect for a given EQ?
4
Sunday, August 18, 13
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Deformation, Faults, and Earthquakes
San Andreas fault
1954 Fairview Peak rupture scarp
2008 Sichuan China Earthquake Devastation
How fast are faults moving?
What is the total magnitude of movement?
How are faults distributed in space?
How much of the fault ruptures during and EQ?
How much ground shaking might we expect for a given EQ?
How have these answers changed in time and space?
4
Sunday, August 18, 13
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MountainsTian Shan
Mts., China
Nordfjord-Sogn Detachment zone,
NorwaySouthern Alps Ostler fault zone New Zealand
Sawtooth Mts, ID
5
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MountainsTian Shan
Mts., China
Nordfjord-Sogn Detachment zone,
NorwaySouthern Alps Ostler fault zone New Zealand
Sawtooth Mts, ID
Why are there mountains in some places and not other places?
5
Sunday, August 18, 13
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MountainsTian Shan
Mts., China
Nordfjord-Sogn Detachment zone,
NorwaySouthern Alps Ostler fault zone New Zealand
Sawtooth Mts, ID
Why are there mountains in some places and not other places?
5
Are the Mountains the result of compression or extension?
Sunday, August 18, 13
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MountainsTian Shan
Mts., China
Nordfjord-Sogn Detachment zone,
NorwaySouthern Alps Ostler fault zone New Zealand
Sawtooth Mts, ID
Why are there mountains in some places and not other places?
When did they begin uplifting and how fast are they uplifting?
5
Are the Mountains the result of compression or extension?
Sunday, August 18, 13
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MountainsTian Shan
Mts., China
Nordfjord-Sogn Detachment zone,
NorwaySouthern Alps Ostler fault zone New Zealand
Sawtooth Mts, ID
Why are there mountains in some places and not other places?
When did they begin uplifting and how fast are they uplifting?
5
Are the Mountains the result of compression or extension?
How many years can a mountain exist before it is washed to the sea?
Sunday, August 18, 13
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MountainsTian Shan
Mts., China
Nordfjord-Sogn Detachment zone,
NorwaySouthern Alps Ostler fault zone New Zealand
Sawtooth Mts, ID
How have these answers changed in time and space?
Why are there mountains in some places and not other places?
When did they begin uplifting and how fast are they uplifting?
5
Are the Mountains the result of compression or extension?
How many years can a mountain exist before it is washed to the sea?
Sunday, August 18, 13
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Scientific Thinking and Geologizing
The Scientific Method•Observations•Hypothesis•Experimentation•Analysis
•support or reject
6
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Scientific Thinking and Geologizing
The Scientific Method•Observations•Hypothesis•Experimentation•Analysis
•support or reject
QUESTION EVERYTHING!
6
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Scientific Thinking and Geologizing
The Scientific Method•Observations•Hypothesis•Experimentation•Analysis
•support or reject
1) How do you know that?2) What is the evidence?3) By what process?4) When?5) Why does/did it happen?6) At what rate?7) What is the scale?
QUESTION EVERYTHING!
6
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Rocks!
Igneous
Metamorphic
IgneousIgneous
Sedimentary
Igneous
Volcanic (microscope)
7
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RocksCan you find the geologist?
8
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What a Geologist sees?
Northern Wasatch Range, Salt Lake City, UT 9
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What a Geologist sees?
Northern Wasatch Range, Salt Lake City, UT 9
Sunday, August 18, 13
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What a Geologist sees?
Northern Wasatch Range, Salt Lake City, UT 9
Sunday, August 18, 13
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What a Geologist sees?
Northern Wasatch Range, Salt Lake City, UT 9
Sunday, August 18, 13
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What a Geologist sees?
Northern Wasatch Range, Salt Lake City, UT 9
Sunday, August 18, 13
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What a Geologist sees?
Northern Wasatch Range, Salt Lake City, UT 9
Sunday, August 18, 13
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What a Geologist sees?
Northern Wasatch Range, Salt Lake City, UT 9
Sunday, August 18, 13
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“We would be fools not to prepare ourselves for the 'impossible'. Why? In an infinite
universe, anything is possible, even probable; given an infinite timeline everything can, and
will happen.”Albert Einstein
10
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The Geologic Time Scale
12Hadean - Beneath the Earth (no Rocks)
Archean-“Ancient” (Prokaryotic)
Proterozoic-Early Life (Eukaryotic)
Paleozoic-”Old Life” (complex life; coral fish, plants)
Mesozoic - “Middle Life” (time of the Dinosaurs)
Cenozoic - “Recent Life”(time of the mammals)
Phanerozoic
- Vi
sibl
e Li
fe
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The Geologic Through Time
13
Acasta Gneiss(Oldest rock exposed at the Earth’s
surface in Northern Canada)
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The Geologic Through Time
13
Acasta Gneiss(Oldest rock exposed at the Earth’s
surface in Northern Canada)
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The Geologic Through Time
14
StromatolitesThrough out the Proterozoic beginning
at 2.5 Ga Stomatolites convert our atmosphere from CO2 to O2
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The Geologic Through Time
15
The Cambrian “explosion of life”(Hard Parts Develop and
extensive biodiversification happens in the oceans during the
Paleozoic from 545 to 245 Ma)
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The Geologic Through Time
16
The Super Continent of Pangea forms(Pangea formed during the late Paleozoic 300 Ma, and Broke
up in the Early Mesozoic 200 Ma)Sunday, August 18, 13
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The Geologic Through Time
17
Famous Dinosaurs Lived (75-75 Ma)
The Mesozoic (time of the Dinosaur was from 245-65 Ma)
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The Geologic Through Time
18
Modern Man (<2 myo)The Cenozoic (time of mammals was
from 65 Ma to the present)
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What a Geologist sees?
Northern Wasatch Range, Salt Lake City, UT
Is Geology Important to Society ?
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Petroleum
Prudhoe Bay (North Slope) to Prince William Sound
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Copper MineElectrical conductor
• second only to silver
Bingham Canyon Mine, Salt Lake City, UT
Sunday, August 18, 13
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Diamond MineKimberly, South Africa
CanadaSunday, August 18, 13
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Iron Mine
Hull-Rust Mine, Minnesota
Sunday, August 18, 13
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Stone Quarry
Yuke Mt Marble, Colorado
North Carolina Granite
Lincoln Memorial Washington DCSunday, August 18, 13
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How are they similar? How are they
different?
34.8 km long x 1.6 km wide x 150m deep
1.2 km deep x 4 km wide
300 meters across x 3.5 km deep
Copper
Iron
Diamond
Sunday, August 18, 13
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Next Quiz
1) Vocabulary a Review Chapters 1a.2) Pre-reading Chapter 11
Sunday, August 18, 13