Divergent Plate Boundaries

Nordic Volcanologic Institute

Geology and tectonics of Iceland. Details about volcanoes and recent subglacial eruption of Vatnajokull. Maintained by Nordic Volcanologic Institute.

 

Woods Hole Oceanographic Institute

Movie showing sea floor hot spring. Maintained by the Woods Hole Oceanographic Institute.

 

Vents Geology Program

Movies of black smokers, animations of earthquake swarms at ridge crests, and maps and descriptions of various midocean ridges. Maintained by the National Oceanic and Atmospheric Administration.

 

Coaxial Segment of the Juan de Fuca Ridge

Earthquake swarm animation at midocean ridge. Maintained by the National Oceanic and Atmospheric Administration.

 

AMNH Black Smokers

A scientific study, with pictures and text, of Black Smokers. Maintained by the American Museum of Natural History.

 

NOAA Marine Geology and Geophysics

Topographic and gravity maps of the seafloor. Maintained by the National Oceanic and Atmospheric Administration.

 

Multibeam Sonar Maps of Seafloor

Detailed shaded relief maps of the ocean floor. Maintained by Columbia University, New York.

 

Virtual Field Trip to Oman

Photographs and maps showing the characteristics of the Oman ophiolite. Maintained by the University of Bristol, United Kingdom.

 

Pillow Lavas of Marin

This site explains the occurrence and implications of pillow lavas on dry land in northern California. Maintained by Marin County Community College, California.

 

Long Valley Caldera, California

This site describes the features and ongoing activity (mostly earthquakes) at this large dormant caldera in eastern California. The caldera is related to continental rifting of the Basin and Range province. Maintained by the U.S. Geological Survey.

 

Divergent Plate Boundaries

Information about submarine volcanoes at divergent plate boundaries. Maintained by the University of North Dakota.

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