Boundaries
Plate Tectonics
Causes
Pangaea
Facts about Rock
100
What are the three types of boundaries?
Convergent, Divergent, Transform Boundaries
100
What direction is the Pacific plate moving. Los Angeles is on the Pacific Plate.
North
100
What are 2 main geologic features at a subduction zone
trenches and volcanoes
100
Researched this theory of continents drifting in the early 1900's.
Alfred Wegener?
100
This rock was formed by heat and pressure that did not quite melt fully.
Metamorphic rock
200
The large rift in the middle of the Atlantic Ocean
Mid-Atlantic Ridge
200
What is another name for lithosphere?
Crust
200
The term for a supercontinent holding all the current continents in one.
Pangaea
200
What type of rock are fossils found in
sedimentary
200
dark blue
300
Moves towards each other with the same density what happens?
Mountains are uplifted and built
300
When an oceanic plate and continental plate collide they form a...
subduction zone?
300
the hottest part of inner earth
inner core?
300
What was the name of the first mountain range formed from Pangaea 500 mya that still exists in the Eastern US?
The mountains were once 24k feet and now are mere hills.
The Appalachian Mountains
300
DAILY DOUBLE!! (2Xs the points)
this fault runs from in the ocean near Northern Ca down South to Mexico and is famous for the 1905 Earthquake in San Francisco.
San Andreas Fault
400
When plates slide past each other
transform boundary?
400
The driving force that plates move, interact and change
Convection Currents
400
What happens at a divergent boundary...be specific for the daily double
The sea floor spreads and creates magma and forms new crust
400
This geologic feature outlines the volcanoes that are formed from subduction along the edge of the Pacific around Japan, Alaska, US, and all the way to the southern tip of So. America.
Ring of Fire
400
Rocks are broken down by ____________ and moved by the process of ______________.
weathering, erosion
500
Most earthquakes, and volcanoes are the effects of this boundary
Convergent
500
A theory that states lithosphere carries continental and oceanic crust over a liquid mantle
plate tectonics?
500
Describe how a volcano is formed
density, subduction, scraping, melting, magma chamber, volcano
500
How the long chain of Hawaii islands formed
Hot spots volcanoes, magma plume in the mantle and the crust moves over it.
500
Name all three processes of the rock cycle and how each rock is formed
igneous, metamorphic, sedimentary