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42 Cards in this Set
- Front
- Back
Where do most volcanoes occur?
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subduction zones
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Define viscosity:
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resistance to flow
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What type of magma causes explosive eruptions?
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rhyolitic
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Things that affect viscosity
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silica content, gas content, temperature
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What were the biggest, baddest volcanoes?
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Krakatoa &
Tambora - most explosive |
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VEI stands for
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Volcanic Explosivity Index
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What is the least dangerous type of flow?
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Lava flow
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Example of subduction zones
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Cascade Range
Andes |
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Example of divergent zone
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Mid-Atlantic Ridge
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Example of a hot spot
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Hawaiian Islands or
Yellowstone |
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3 magma types
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Basaltic, Rhyolitic, Andesitic
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Basaltic magma
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forms shield volcanoes
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Rhyolitic magma
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forms calderas and are EXPLOSIVE
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Andesitic magma
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forms steep sided strato volcanoes
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3 types of stuff ejected from volcanoes
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lava flows, pyroclastic, gases,
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What is her dog's name?
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Cleo
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Music she likes?
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Metallica and Old Crow Med Show
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What were the type of floods we studied?
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River Floods
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What is a factor NOT contributing to the occurrence and severity of floods?
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Fish populations
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The formula T=(N+1)/M is used to calculate what?
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Recurrence Interval
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True
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the idea of floodplain management is based on the recognition of flood hazards and using that info when planning for land usage
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Q=AV
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discharge = area * velocity
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Name two factors that greatly influence mass wasting:
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Moisture
Gravity |
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Define Angle of Repose:
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the critical angle above which failure occurs (approx. 30-35 degrees for loose dry stuff)
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Classification of mass movement is based on what?
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Type of material/type of movement
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The slowest type of movement is a:
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creep
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True
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The Gros Ventre Slide in Wyoming occurred because there was over-saturation of the rock layers and the river at the base of the mountain had cut down into the slope, thus destabilizing it
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Why does East TN have so many landslides?
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due to mountains and moisture
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bigger mass =
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bigger critical angle
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2 types of energy
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nonrenewable and renewable
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Examples of renewable energy
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water, wind, solar, geothermal, biomass
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Examples of non-renewable energy
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coal, oil, natural gas
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Types of energies
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Thermal, kinetic, potential, chemical, electrical, nuclear
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What type of non-renewable energy has risen the most in price?
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Natural gas
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Examples of Biomass
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corn, wood, peat
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Why don't we use solar and wind energy in the US?
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It's not reliable and there's no place to store the energy
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Define energy efficiency:
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the ability to use less energy and provide some level of service
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Define Porocity:
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how able something is to absorb fluids
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permeability
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how well the pores are connected in a rock
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Hydraulic conductivity
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how well a material can flow (like water)
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Darcy's Law
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q = (K(h1-h2)) / (d)
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Hydro Cycle
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Precipitation, Infiltration and Runoff, Groundwater flow, Transpiration, evaporation
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