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Published byDavid Hunter
Modified over 4 years ago
The hypsigraphic curve
The submersible Alvin
Echo sounding Seismic Profiling
As they cool down through the Curie point,
The Formation of Magnetic Stripes
The Ocean Floor Sinks as it gets older
The rift valley of a spreading center has a horst and graen structure
Structure of the sea floor
Transform faults offsett segments of the mid-oceanic ridge Abyssal Hills
Pelagic sediment becomes thicker with increasing distance from the mid-oceanic ridge
Evolution of a rift ocean
A passive Continental margin
An active Continental Margin
Formation of an Island Arc
An Andesitic Volcano on an Island Arc
Volcanic island vs. Guyot
Formation of an Atoll
Spreading Rates vs Ridge Volume
Landforms (Relief Features) associated with plate boundaries
Sea Floor Spreading and Plate Tectonics
© 2011 Pearson Education, Inc. CHAPTER 3 Marine Provinces.
Plate Tectonics Evolution of Continents, Ocean Basins, Mountains Continental Margins.
Sea Floor Morphology Submarine Canyons. Mosher, et al., 2004.
Earth’s Seafloors Ocean Basins and Continental Margins Introductory Oceanography Ray Rector - Instructor.
The sea floor. seafloor water covers 70% of Earth’s surface.
Chapter 3 Marine Provinces
Major Geological Events
Plate Tectonics and the Ocean Floor.
Mountain Belts formed at Divergent and Convergent Boundaries
Plate Tectonic Makeup Bellwork
Features of the Ocean Floor
The Seafloor and its Structures
Divergent Plate Margins: Mid-Oceanic Ridges.
Deep Seafloor Features Mapping the seafloor – Bathymetry- study and mapping of seafloor elevations – Techniques Early explorers measured depth with rope.
Bathymetry of the Ocean Floor The ocean floor is mapped by SONAR. (Sound navigation and ranging) Depth = (time x 1500 m/sec)/2 (round trip) At 25 degrees.
EXPLORING THE OCEAN FLOOR pbs
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