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+"Pacific Ocean" +1974 stock footage and images
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Scientific analyses conducted aboard the research vessel, Glomar Challenger, at sea.
Glimpse of the research vessel, Glomar Challenger, at sea. Positions being marked on a chart of the Pacific Ocean. Man at work titrating a solution in a chemistry laboratory aboard the ship. A woman stiring a solution during titration, until a color change occurs. View of the Glomar Challenger at sea, during dusk and darkness, with her rigging lights illuminated. Magnetic storage tape being wound. A three-dimensional molecular model. Technician in computer room on the ship. Animated view of the earth and its oceans.
Relationships between deep ocean floor core samples, tectonic plate movements, and propensity for earthquakes
Animated sequences illustrating relationship of core samples from deep ocean floor to tectonic plate movements. Diagram showing core samples at various locations and relationship to time, going back to the super continent (Pangea). Outline of Pangea segments superimposed on current world map. Highlighting of areas where tectonic plates collide. Illustration of one plate sliding beneath and adjacent plate; two plates sliding beside one another; and upwelling causing two plates to retreat from each other. Relief map of ocean floor in Pacific showing dramatic features near Japan and lesser features off the coast of California and Mexico related to earthquake propensity.