Continental Drift and the Pioneers of Ocean Mapping

The video discusses Alfred Wegener's theory of continental drift, initially dismissed by peers. Marie Tharp's work at Columbia University, mapping the ocean floor, provided crucial evidence supporting the theory. Despite initial skepticism, her findings, along with seismic data, led to the acceptance of continental drift and the development of plate tectonics. Jacques Cousteau's expedition further validated Tharp's maps, marking a significant paradigm shift in earth sciences.

Who proposed the theory that Earth's continents were once a single landmass called Pangaea?

• Bruce Heezen

• Marie Tharp

• Jacques Cousteau

• Alfred Wegener

What was the initial reaction to Wegener's continental drift theory?

• It was ignored

• It was immediately proven

• It was met with skepticism

• It was widely accepted

What was Marie Tharp's role at Columbia University?

• She was a cartographer for NASA

• She processed ocean floor data

• She led ocean expeditions

• She was a geology professor

Why were women prohibited from joining early ocean expeditions?

• Fear of bad luck at sea

• Insufficient training

• Health concerns

• Lack of interest

What did Marie Tharp's ocean floor profiles reveal?

• A flat, featureless ocean floor

• A long V-shaped cleft

• A series of underwater volcanoes

• A network of underwater rivers

What did Tharp's detailed physiographic map support?

• The theory of oceanic expansion

• The theory of continental drift

• The existence of Atlantis

• The presence of underwater cities

What did Howard Foster's research link to mid-ocean ridges?

• Volcanic eruptions

• Earthquake occurrences

• Ocean currents

• Tsunami patterns

What did the pattern of scars across the ocean floor indicate?

• Continental drift

• Ancient civilizations

• Meteor impacts

• Underwater mining

What was the outcome of Jacques Cousteau's expedition?

• It discovered a new ocean trench

• It confirmed Tharp's maps

• It disproved Tharp's maps

• It found new underwater species

What scientific concept did Tharp's work help establish?

• Quantum Mechanics

• Plate Tectonics

• The Big Bang Theory

• Evolutionary Biology