Show:
vocabulary
plate tectonics
earthquakes
volcanoes
random
100
The place within Earth where the earthquake waves originate.
What is the focus?
100
Top part of mantle right beneath lithosphere, allows movement of the lithosphere.
What is the asthenosphere?
100
Has the slowest velocity of all waves.
What is surface waves?
100
A crack that develops in the crust.
What is a fissure?
100
Study of earthquake waves.
What is seismology?
200
The amount of damage caused by an earthquake.
What is Intensity?
200
When two plates move apart. Constructive margins.
What is a divergent boundary?
200
A scale that measures intensity of an earthquake using roman numerals.
What is a mercalli scale?
200
A body of molten rock found at depth, including any dissolved gases and crystals.
What is magma?
200
Continental drift theory.
What is Alfred Wegener known for?
300
The deformation of material in response to stress.
What is strain?
300
Extend from mantle-core boundary and cause convections within the mantle.
What is a mantle plume?
300
An earthquake recording instrument.
What is a seismograph?
300
Large collapse depressions having a more or less circular form.
What is Calderas?
300
Earths largest volcano, one of the five overlapping sheild volcanoes.
What is Mauna Loa?
400
a large ocean wave, generated by vertical motions of the seafloor during an earthquake.
What is a Tsunami?
400
Rising plumes of mantle material.
What is hotspots?
400
Has a push-pull motion, travels through all states of matter.
What is a primary wave?
400
An isolated, a steep sided, erosional remnant consisting of lava that once occupied the vent of a volcano.
What is a volcanic neck?
400
The height of the crest from the baseline.
What is amplitude?
500
The transfer of thermal energy by the movement of heated material from one place to another.
What is convection?
500
Theory that orignally proposed that the continents are rafted about. Developed by Alfred Wegener in 1915.
What is continental drift?
500
Rate at which stress builds up in rocks.
What is stress accumulation?
500
Have surface of rough, jagged blocks with dangerously sharp edges and spiny projections.
What is an aa flow?
500
Sections along faults that are known to be active but have not experienced significant earthquakes.
What is a seismic gap?