Ocean Ridge Movies
Movies of the Pacific-Antarctic Ridge
View ten million years of seafloor spreading at the axis of the Pacific-Antarctic Ridge. Credits
The bathymetry movies show the seafloor spreading of the surface topography. White represents the shallowest depths, dark blue the deepest depths. The topography is corrected for the thermal contraction of the lithosphere. The divergent plate boundary is offset by the Pitman Fracture Zone, a right lateral transform fault. The magnetics movies show the seafloor spreading of the magnetized oceanic crust. Orange-red indicates positive anomalies or normally magnetized crust, blue represents negative anomalies, or reversely magnetized crust. Note the symmetry in the magnetic anomalies about the ridge axis. The age of the ridge axis, in millions of years, is shown as a number in the upper left corner of each frame.
Mpeg-formatted movies and flyby
Scroll down for Quicktime movies
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Bathymetry from Present to 9.90 my ago (mpeg 1,247,360bytes, 199 frames) |
 Pacific-Antarctic Ridge Today
Magnetic anomalies from Present to 9.90 my ago (mpeg 856,320 bytes, 199 frames) |
 Pacific-Antarctic Ridge 9.90 my ago
Bathymetry from 9.90 my ago to Present (mpeg 1,247,360 bytes, 199 frames) |
 Pacific-Antarctic Ridge 9.90 my ago
Magnetic anomalies from 9.90 my ago to Present (mpeg 856,320 bytes, 199 frames) |
 Flyby
Fly down the Pitman Fracture Zone (mpeg 785.877 bytes, 160 frames) |
Quicktime formatted movies and flyby
 Pacific-Antarctic Ridge Today
Bathymetry from Present to 9.90 my ago (Quicktime 4,137,529 bytes, 199 frames) |
| Pacific-Antarctic Ridge Today
Magnetic anomalies from Present to 9.90 my ago (Quicktime 4,106,854 bytes, 199 frames) |
| Pacific-Antarctic Ridge 9.90 my ago
Bathymetry from 9.90 my ago to Present (Quicktime 4,137,695 bytes, 199 frames) |
| Pacific-Antarctic Ridge 9.90 my ago
Magnetic anomalies from 9.90 my ago to Present (Quicktime 4,106,982 bytes, 199 frames) |
| Flyby
Fly down the Pitman Fracture Zone (Quicktime 4,530,729 bytes, 160 frames) |
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Hosted at Lamont-Doherty Earth Observatory of Columbia University. Site licensed under Creative Commons Attribution-Noncommercial-Share Alike 3.0 |
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Funded by the US National Science Foundation (NSF) |