What is the difference between the epicenter and the Focus
What is Epi= located on surface while Focus is the internal location of stress relief.
100
Type of plate boundary found at Hawaii
What is NONE!!!! its a HOT spot
100
What are the 3 types of volcanoes and a feature of each
What is shield ( low broad slope), composite ( alternating layers of ash and lava), cinder ( andesitic lava).
200
A weak plastic like partially molten layer
What is Asthenosphere
200
What region produces most of the worlds siesmic activity?
What is Pacific Ring of Fire
200
Most common EQ hazards
What is Ground motion, Fire, landslides, liquefaction, Tsunami
200
Type of rock with pores that allows water to flow through it
What is Permiable
200
Which of the 3 types of volcanoes produces the most violent eruptions
What is Cinder cone.
300
Drives plate movements
What is Convection Currents
300
This feature runs the entire length or extent of the converging plate boundary. It is located under water at the leading edge of the plate.
What is a trench
300
Explain liquifaction
What is violent shaking of loose sediments results in water penetration of sandy soil and destabilization of ground.
300
Difference between gyser and hot springs
What is Hot springs funnel water upwards through faults while gysers have partially obstructed paths to the surface and requires the build up of pressure to erupt.
300
When overlaying layers of soil are eroded away from ancient volcanoe
What is Volcanic neck.
400
Weight added to continents, resulting in sinking
What is Isostacy
400
Mid Ocean Ridges have a distinct characteristic known as...
What is magnetic reversal.
400
Fissure eruptions take place along?
What is Rift Valley and Mid Oceanic Ridge
400
Proccess of turning sediments into sedimentary rock
What is Lithification
400
Intrusive feature--> pooling of magma into dome like structure which causes surface strata to buckle and bend, forming hills or small mountains.
What is laccolith
500
The leading edge of an oceanic plate, prior to melting, enters the.....
What is the zone of subduction
500
Rocks respond to stress in 3 ways...
What is Brittle fracture, ductile deformation and elastic deformation.
500
Upwards of 1000 degrees C, travels over 160km/hr, hot gas (heavier then air)and debris.
What is Nuees ardentes
500
A compression fault resulting in an upward lift of strata
What is Block Mountain or horst
500
Define and explain Lahars
Volcanic eruptions project pyrocalsts, which melt glaciers and send massive debris filled mud flows down slope.