SES4U: U4 - Plate Tectonics Review

What would be a logical consequence if mantle convection stopped?

What is the name for the constant production of new ocean floor?

Which piece of evidence best supports seafloor spreading?

Why was Wegener's theory of continental drift initially rejected?

Which is the oldest?

Seafloor spreading occurs at:

What happens to the thickness of sediments as you move away from a ridge?

What major features did sonar mapping reveal?

Theory which states that parts of Earth's crust slowly drift atop a liquid core?

What happens to oceanic crust as it moves away from the ridge?

What does the presence of coal in Antarctica suggest?

Where is oceanic crust recycled back into the Earth?

What technology revealed the topography of the ocean floor?

According to Wegener, what was the name of the supercontinent?

How does mantle convection drive plate tectonics?

What causes sea floor spreading?

What is paleomagnetism?

Where is crust recycled?

Glacial deposits in now-warm regions suggest:

Which scientist is credited with proposing continental drift?

As distance from a mid-ocean ridge increases, the age of the oceanic crust:

What do magnetic stripes on the ocean floor represent?

Generally, what is the age of oceanic crust?

Who proposed the theory of seafloor spreading?

What type of boundary forms at mid-ocean ridges?

What was Wegener’s hypothesis called?

Which type of evidence was not used by Wegener to support continental drift?

The theory of plate tectonics builds on which earlier theory?

The presence of similar fossils on continents now separated by oceans supports:

Magnetic striping on the ocean floor provides strong evidence for:

Magnetic stripes on the ocean floor are evidence for:

Which is a narrow, elongated depression in the sea floor?

Which was not used as evidence for Continental Drift by Wegener?

What causes new oceanic crust to form at mid-ocean ridges?

Where is new crust created?