FragSysDay3-E114RSs - WELCOME TO EOSC 114 Catastrophic...

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Unformatted text preview: WELCOME TO EOSC 114 Catastrophic Earth: Natural Disasters Prof. Roland Stull, Earth & Ocean Sci. Dept. No handouts. Instead, see: www.eos.ubc.ca/courses/eosc114 Username: eosc114 Password: iridium Please consider switching into an Online (Distance Ed.) section of: EOSC 114: Disasters EOSC 116: Dinosaurs EOSC 118: Gold, Gems 1 In case of earthquake while you are in class, duck and cover . Reminder : Turn off cell phones, and dont use laptops in class. 2 A. Nat.Dis./Rare Events info needed density layering intensity/disaster scales return period, risk B. Materials minerals, crystals phases of matter Fuids,viscosity,strain C. Energy change,force,gravity types of energy: work, kinetic, potential, heat: sensible, latent power, pressure, stress sources & build up D. Is Earth Fragile? population growth infrastruct. sensitivity humans vs. earth A ragile System? Prof. Roland Stull 3 Todays Learning Goals List the 1st and 2nd most common elements in the earth, ocean, and atmosphere. Describe how viscosity and compressibility relate to the phase of matter. Be able to diagnose the type of strain by the way a material deforms. Explain how gravity affects motion and energy. List the 5 types of energy, and describe what causes them to vary. By the end of this period, you should be able to: 4 B. Materials Elements Atoms Atomic # Atomic Mass Number Isotopes Molecules Ions A chemical element consists of identical atoms. Protons (+) & neutrons in nucleus. Electrons (-) orbit. The number of protons. The number of protons + neutrons. Same element with same number of protons, but different numbers of neutrons. e.g.: carbon12 (= 6 protons + 6 neutrons) vs. carbon14 (= 6 protons + 8 neutrons) Combinations of atoms. Neutral charge. Incomplete combinations of atoms. Has charge. e.g.: silicate (SiO 4 ) 4 atomic mass number-Review 5 B. Materials Some Elements Discussed in this Course : Hydrogen (H), Helium (He) , Carbon (C), Nitrogen (N), Oxygen (O), Sodium (Na), Magnesium (Mg), Aluminum (Al), Silicon (Si), Phosphorus (P), Sulfur (S), Chlorine (Cl), Argon (Ar), Potassium (K), Calcium (Ca), Titanium (Ti), Manganese (Mn), Iron (Fe), Nickel (Ni), Iridium (Ir) Abundance Earth Core Earth Crust Ocean Atmos. Most iron oxygen oxygen nitrogen 2nd nickel silicon hydrogen oxygen 3rd (unknown) aluminum chlorine argon 6 B. Materials Crystals form when molecules align in a lattice....
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This note was uploaded on 04/01/2010 for the course EOSC 114 EOSC 114 taught by Professor Stull during the Spring '10 term at The University of British Columbia.

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FragSysDay3-E114RSs - WELCOME TO EOSC 114 Catastrophic...

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