Landmarks
What continent is the canyon in, according to the big map?
Europe
What was Alfred Wegener's biggest accomplishment?
The Theory of Continental Drift
what is the youngest super continent?
The youngest super continent is Pangaea
How do Ridges Form?
Formed by plate tectonics. This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma.
What is seafloor spreading?
Were tectonic plates split apart from each other.
Where are 3 hotspots located according to the big map?
Hawaii, Yellowstone, Iceland.
What was Harry Hess most known for?
He discovered the shape of the pacific floor and studied the deepest part of the ocean.
what is a super continent?
a super continent is the assembly of most or all of Earth's continents to form a single large landmass.
What are the 2 Rises and Ridges?
Mid Atlantic Ridge and The East Pacific Rise.
What is the seafloor spreading theory?
oceanic crust forms along submarine mountain zones known as the mid-ocean system.
What 5 continents have plant fossils according to the big map?
Asia, Australia, Antarctica, South America, Africa.
What was Marie Tharp's biggest accomplishment?
She created the scientific map of the Atlantic Ocean Floor.
What is the name of the ocean that surrounded Pangea?
What is Panthalassa.
What is a rise?
A spot higher than the surrounding ground.
Why is seafloor spreading important?
It replaces the lithosphere destroyed by subduction.
What ocean is the troth in according to the big map?
Pacific Ocean
What is Arthur Holmes most famous for?
He discovered convection currents
what causes super continent to break apart?
gravitational force
What is a ridge?
An elevated body part or structure. (Mountain ranges, hills)
Where does seafloor spreading occur?
Mid-ocean ridges and large mountain ranges.
What continent has 2 animal fossils according to the big map?
South America
What did Alfred and his friends help to determine?
Continental Drift and Plate Tectonics
How many supercontinents have there been?(Rumor)
Why are rises and ridges important?
They occur along the kind of plate boundary where new ocean floor is created as the plates spread apart.
At what rate does seafloor spreading occur?
At a rate of (3-6) inches every year.