Marine Geoscience Data System

GeoMapApp

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

Pacific-Antarctic Ridge Today

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)