Mid-ocean Ridges - Woods Hole Oceanographic Institution
2020年11月10日 · The mid-ocean ridge is a continuous range of undersea volcanic mountains that encircles the globe almost entirely underwater. It is a central feature of seafloor terrain that is more varied and more spectacular than almost anything found on dry land, and includes a collection of volcanic ridges, rifts, fault zones, and other geologic features.
Exploring The Global Mid-Ocean Ridge - Woods Hole …
1998年3月1日 · RIDGE. RIDGE’s objectives are twofold: 1) to provide a focus for coordinated, interdisciplinary research into the geologic and geodynamic processes related to the creation of oceanic lithosphere, and 2) to provide a framework within which diverse, innovative, investigator-initiated research can be undertaken.
Mid-ocean Ridges – Woods Hole Oceanographic Institution
As the oceanic plates move apart at mid-ocean ridges, rocks from Earth's mantle, far below,… Page 1 of 2 1 2 » Woods Hole Oceanographic Institution is the world's leading non-profit oceanographic research organization.
Mid-Atlantic Ridge Volcanic Processes – Woods Hole …
1998年3月1日 · The ridge is about 3.3 kilometers long, 400 meters wide, and 30 meters high. The along-axis orientation of the ridge mimics neighboring faults and fissures, and it is inferred to have erupted from similar fissures. The smooth, unfaulted flows surrounding the ridge are interpreted to be part of the eruption that built the ridge.
The Big MELT – Woods Hole Oceanographic Institution
1998年12月1日 · 3) In the area of the MELT Experiment, the Pacific Plate, west of the East Pacific Rise ridge, has far more abundant seamounts than the Nazca Plate, east of the ridge. Seismic measurements can help us to determine if the more abundant volcanism in the Pacific Plate is, as expected, associated with the formation of a thicker crust.
Scientists Report New Type of Mid-Ocean Ridge in Remote Parts …
2003年11月26日 · Initially, he thought they were just a very slow variety of slow-spreading ridge, creaking apart at only 0.15 to 0.8 inches per year. Slow and fast ridges – the other types of ocean ridges — spread at a rate of one to 7 inches annually. Dick says that the ultraslow ridges account for 12,000 miles of the total 30,000-mile mid-ocean ridge system.
Hitting the Hotspots - Woods Hole Oceanographic Institution
1998— The great volcanic mid-ocean ridge system stretches continuously around the globe for 60,000 kilometers, nearly all of it hidden beneath the world’s oceans. In some places, however, mid-ocean ridge volcanoes are so massive that they emerge above sea level to create some of the most spectacular islands on our planet.
Mid-Ocean Ridges: Magnetics and Polarity, featuring seafloor …
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The Cauldron Beneath the Seafloor - Woods Hole Oceanographic …
1998年12月1日 · The answer lies beneath the seafloor, within the oceanic crust. The mid-ocean ridge system, which forms where the earth’s tectonic plates are spreading apart, is volcanically active and the site of numerous heat sources, which induce seawater to circulate through the permeable oceanic crust.
Ocean Trenches - Woods Hole Oceanographic Institution
November 7, 2019 The Rise of Orpheus. WHOI’s new deep-sea autonomous underwater vehicle moves one step closer to exploring the hadal zone—the deepest region of the ocean—to search for new clues about the limits of life on Earth, and possibly beyond.