SES4U: U4 - Plate Tectonics Review

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

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

Magnetic stripes on the ocean floor are evidence for:

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

The theory of plate tectonics builds on which earlier theory?

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

What type of boundary forms at mid-ocean ridges?

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

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

Which is the oldest?

Where is crust recycled?

What do magnetic stripes on the ocean floor represent?

What is paleomagnetism?

What was Wegener’s hypothesis called?

What causes sea floor spreading?

Which scientist is credited with proposing continental drift?

What does the presence of coal in Antarctica suggest?

Magnetic striping on the ocean floor provides strong evidence for:

Seafloor spreading occurs at:

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

How does mantle convection drive plate tectonics?

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

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

Glacial deposits in now-warm regions suggest:

Where is oceanic crust recycled back into the Earth?

Where is new crust created?

Which piece of evidence best supports seafloor spreading?

What technology revealed the topography of the ocean floor?

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

What major features did sonar mapping reveal?

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

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

Generally, what is the age of oceanic crust?

Who proposed the theory of seafloor spreading?

What would be a logical consequence if mantle convection stopped?