Some Basic Physics, Chemistry and Geology followed by and...
Transcript of Some Basic Physics, Chemistry and Geology followed by and...
Some Basic Physics, Chemistry and Geology followed by
and Introduction to the Earth Interior
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Today’s Quiz
1) Vocabulary Chapters 1a and 112) Review of Chapter 1a and Previous Lecture
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A Private Unvierse?
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Some Basic Physics and Chemistry and Geology
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EquilibriumCookie Equilibrium
Coffee Equilibrium
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Equilibrium
Temperature (heat) Equilibrium
Molecular (H2O)Equilibrium
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Phase Change
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Solid
Liquid
Gas
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Temperature (heat) and Pressure
Temperature is a measure of Heat
Sources of Earth’s HeatAccretionary heating (original heat)Latent heat (heat of crystallization) Radioactive Decay
Accretionary heat(energy transfer)
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Heat Transfer (cooling)
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Buoyancy
Density = mass/volume (g/cm )
Dead Sea
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Gravitational Equilibrium3
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Buoyancy
Density = mass/volume (g/cm )
Dead Sea
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Buoyancy
Density = mass/volume (g/cm )10
Gravitational Equilibrium3
Brasson
Mercury
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Buoyancy
Density = mass/volume (g/cm )10
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Brasson
Mercury
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Observable Matter
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Observable Matter
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Silicate Rocks- Rocks composed dominantly of Silicon (Si) and Oxygen (O)
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Observable Matter
Mafic rocks
Felsic rocks
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Silicate Rocks- Rocks composed dominantly of Silicon (Si) and Oxygen (O)
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Observable Matter
Mafic rocks
Felsic rocks
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Earth’s Composition
by Mass
-35% Fe-30% O-15% Si-12% Mg-8% all other
Silicate Rocks- Rocks composed dominantly of Silicon (Si) and Oxygen (O)
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The Rock Cycle
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Observable Matter
Mafic rocks
Felsic rocks
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Earth’s Composition
by Mass
-35% Fe-30% O-15% Si-12% Mg-8% all other
Felsic Rocks Greater than 55% SiO4 (silica)) Continental Crust 45% SiO2 < Mafic Rocks < 55% SiO4 Oceanic CrustUltramafic less than 45% SiO4 MantleNon-Silicate Rock (Ni-Fe alloy) Core
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Earth’s Composition Heterogeneous or Homogeneous?
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Earth’s Composition Heterogeneous or Homogeneous?
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What is the crust enriched in?What is the curst depleted in?
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Mafic
Felsic
Lower Mantle
Lower Mantle
Modified“Geology ata Glance”
11.1
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Buoyancy
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Isostasy
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Isostasy
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Isostasy
www.globalchange.umich.edu.tiff19
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What amount of the low density block is sticking above the more dense material?a) ~12 km
b) ~33 km
c) ~17 km
d) ~7 km
e) Was unable to determine
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What amount of the low density block is sticking above the more dense material?a) ~12 km
b) ~33 km
c) ~17 km
d) ~7 km
e) Was unable to determine
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Himalayan Mountains
Isostasy
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Earth’s StructureGroup Work
Pages 17, and 19-21 in your ManualWork in Groups of 2 to 3
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Crust
Mantle
CoreInnerCore
OuterCore
Lithosphere
Earth’s Structure
Asthenosphere
Moho
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