What Process adds new material to the ocean floor
Seafloor Spreading
The discovery of seafloor spreading helped or rejected the idea of continental drift? and how
Helped, showed how plates moved
Who discovered how material is added to the seafloor
Harry Hess
The idea that the earths plates are in slow constant Motion
Plate Tectonics
Whats going on at A
Molten Material
_______ Space
Blank
What is happening in the mantle that makes new floor be added to the ocean floor
Convection Currents
What are the 3 types of evidence Hess used for SFS
-Magnetic Striping
-Molten Material
-Drilling Samples
Who lived on Druery Lane?
The muffin Man
What year was Plate tectonics proposed and accepted?
(Within 5 years)
1960
What is happening at B
Convection Currents in the Mantle move the crust
I knew you were ________
Trouble
What is at C?
Mid Ocean Ridge
How is molten material good evidence for seafloor spreading
Molten Material proves that new ocean floor was being made and disproes the idea that all of the ocean floor was made at the same time
Continental Drift
Alfred Wegener
What 3 theories is plate tectonics based on
Continental drift
Convection Currents
Seafloor Spreading
What PROCESS happening at C
Seafloor Spreading
______ Story
Love
Process that recycles old crust back into the mantle
Subduction
Acquiring rock samples and determining the age of rock is good evidence for Sea Floor Spreading because..
Taking rock samples near and far from the mid ocean ridge proved that the ocean floor was different ages. This means it was not all made at the same time.
Arthur Holmes
Who are the 3 people that contributed to plate tectonics
Alfred Wegener
Arthur Holmes
Harry Hess
What LAND FEATURE is at C
Mid Ocean Ridge
But _________ I love him
Daddy
What land feature is at D
Deep Ocean Trench
Magnetic striping is good evidence for Sea Floor Spreading because...
Magnetic striping of the ocean floor proves that not all of the ocean floor was made at the same time but rather piece by piece over time.
Seafloor Spreading
Harry Hess
The theory of plate tectonics explains how these 3 things happen to the ocean floor
How new crust is added
How plates move
How old crust is subtracted
What Process is happening at D
Subduction
________ Dreams
Wildest