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Earthquakes + more

Earthquakes, Plate tectonics, and Volcanoes.

3 types of volcanoes. Shield, Composite, and Cinder cone.
Describe a Shield volcano. Largest type, looks like a warriors shield, gentle slope large crater.
Describe a Composite volcano. Look like mountains, alternating layers of ash and lava.
Describe a Cinder cone volcano. Smallest, steepest, large crater, and made of ash and cinder.
What are the three types of lava flows. AA, Pahoehoe, and Pyroclastic flow.
Describe Aa Aa is a slow moving cool lava with lots of silica.
Describe Pahoehoe Fast moving, very hot lava, little silica.
Describe Pyroclastic flow. When magma is thick and sticky it builds up pressure. Is the most dangerous its compounds are gas, cinder, and ash.
Name the parts of the volcanoe Vent, Crater, Side vent, Lava, Lava flow, Magma, Pipe, Magma chamber.
Define hot spot An area where Magma burns through the crust like a blow torch.
Define geyser A jet of very hot water that shoos up out of the ground.
Define Extinct A volcano that will never erupt again.
Define Caldera Large crater that is produced when a volcano empties its magma chamber.
Define ring of fire. A chain of volcanoes around the Pacific Plate.
Define Dormant A "sleeping" volcano
Define explosive Type of eruption that produces pyroclastic flows.
Define silica Combination of oxygen and silicon
Define hot spring Pool of water that is heated up by magma.
Define Active A volcano that still can erupt and will soon in the future.
Define Quiet Eruptions that produces two types of lava.
Define volcanic neck. What forms when magma in a volcanoes pipe cools off.
Define Batholith What is formed when a volcanoes magma chamber cools off.
What are the three types of plate boundaries. Divergent, Convergent, and transform.
Describe divergent. The two plates go in opposite directions.
Describe transform. The two plates go past each other.
Describe convergent. The plates go towards each other.
What are the three types of stress. Shearing, Tension, and Compression.
Describe shearing. Shearing is going aside each other and scraping off each other.
Describe Tension Pulls the rock apart making it thinner in the middle.
Describe Compression Squeezes the rock together so it folds and breaks.
What are the types of faults. Strike slip, normal, and reverse.
Describe strike slip. Go across each other created by shearing.
Describe Normal Go in opposite directions created by tension.
Describe reverse. Go towards each other created by compression.
Define folding A bend in a rock
Define Anticline When a rock is bent on an upward arch
Define Syncline When a rocks bent on a downward curve
Define Platue A land form that is a piece of flat land raised above sea level.
What is the difference between Syncline, Anticline, and Platue. Syncline is on a downward curve anticline is on an upward curve and a Platue is not curved and above sea level.
Define Tidal wave. Waves caused by tides (gravity of moon)
Define Tsunamis Humongous waves caused by earthquakes.
What is the difference between Tidal wave and tsunami. Tsunami created by earthquakes and Tidal wave created by tides.
What is the Mercali scale. A scale that rates earthquakes based on their intensity this is very precise.
What is the Richter scale. A scale that rates earthquakes based on the seize measured by seismographs is good and accurate but only near the focus.
What is the Moment magnitude scale. A scale that is used to rate all earthquakes.
What are the safety precautions to take in case of an earthquake. -Under table -Away from objects that can fall -High area -Outside -Drop,Cover, and Hold.
What is a seismic wave? Waves that travel through earths layers caused by earthquakes.
What is a P wave The first of the 3 seismic waves it is the least powerful and contracts and expands the ground.
What is a S wave. The second of the 3 waves more powerful than P wave moves the ground side to side and up and down.
What is a surface wave. The 3rd and most powerful of the three waves it is the slowest and rolls the ground.
What is a focus. Focus: The point where an earthquake starts.
What is the epicenter. Epicenter: The point above the focus on the surface.
Created by: 16eferro