Earthquakes
A break in the crustal plate where earthquakes occur
fault
Low sloped, non violent eruption. Erupts slow liquidy magma. Type of volcano and real life example.
Shield Volcano
Hawaii
Solid inner sphere. Name and miles wide.
Inner Core
754 mile radius
The theory of how the earths land masses used to be in a super continent and moved apart
Continental Drift
When two plates move apart with example of features
Divergent
trenches and mid ocean ridges
Where do earthquakes occur
Plate boundaries
Steep sloped, slightly violent eruption. Erupts tephra. Type of volcano and real life example.
Cinder cone
Paracutin
Outer most layer of the earth, Brittle and thin. Give the name and miles deep
Crust
6 miles
Theory that the ocean is moving apart
Seafloor spreading
When two plates move into each other with examples of features
Convergent
himalayas
Point on Earths surface where earthquake waves migrate out from.
Epicenter
Steep sloped, very violent eruption. Erupts magma and tephra. Type of volcano and real life example.
Composite Cone
Mt. St. Helens
Liquid layer that generates Earths magnetic field. Name & miles wide.
Outer Core
1410 miles
Supercontinent proposed by Alfred Wegner
Pangea
When one plate moves under another and examples of features
Subduction
Mountains
Point under Earths surface in the crust where earthquake is generated
Focus/Hypocenter
Ash, cinders, and pumus
What is tephra
Layer made up of highly viscous material. Name and miles wide.
Mantle
1800 miles
Evidence of aincient climates preserved in rock
Paleoclimactic evidence
When one plate slides past another. Name of term & example.
Transform
San Andreas Fault
Why do earthquakes on the east coast have more impact than on the west coast
The east coast is made of harder rock and our buildings are not up to code.
Which kind of vocano is granitic? Basaltic? Andesitic?
Cinder, Shield, composite.
How have scientists determined width and consistency of layers?
Seismic waves
Created by cooling volcanic rocks and iron orienting themselves with magnetic North and south
Paleomagnetism
Thick molten material moving away from the hot core, cooling, and then sinking again.
Mantle Convection