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A MODEL OF SEA-FLOOR; SPREADING TEACHER'S GUIDE ... Purpose: Students will make a paper model illustrating the concept of sea-floor spreading and the development of symmetrical magnetic "stripes" on either side of a mid- ocean spreading center.
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www.ucmp.berkeley.edu/fosrec/Metzger3.html
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; USGS/Cascades Volcano Observatory, Vancouver, Washington ... Plate Tectonics and Sea-Floor Spreading, Subduction Zones, "Hot Spots", and the "Ring of Fire" ... Seafloor Spreading - Description...
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vulcan.wr.usgs.gov/Glossary/PlateTectonics/framework.ht...
vulcan.wr.usgs.gov/Glossary/PlateTectonics/framework.html
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Hess proposes sea-floor spreading; 1960; ... After much thought, he proposed in 1960 that the movement of the continents was a result of sea-floor spreading. In 1962, he added a geologic mechanism to account for Wegener's moving continents.
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www.pbs.org/wgbh/aso/databank/entries/do62se.html
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Seafloor spreading - Wikipedia, the free encyclopedia
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Seafloor spreading occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. Seafloor spreading helps explain continental d...
en.wikipedia.org/wiki/Seafloor_spreading
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The phenomenon of sea-floor spreading is one of the most remarkable features of planet Earth. Wherever two tectonic plates pull apart, the gap is filled continually with newly created oceanic crust.
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visearth.ucsd.edu/VisE_teach/lessons/Sea_floor_LP.html
visearth.ucsd.edu/VisE_teach/lessons/Sea_floor_LP.html
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Concepts of Sea-floor Spreading; Sea-floor spreading has many surprising properties. One of the most notable is that the process is so symmetrical about the ridge crest. In other words, almost exactly the same area of sea-floor is added to the plate on either side of the ridge.
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visearth.ucsd.edu/VisE_teach/lessons/Sea_floor_act.html
visearth.ucsd.edu/VisE_teach/lessons/Sea_floor_act.html
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Sea-floor spreading along the midoceanic ridge. ... Sea-floor spreading occurs where oceanic plates are diverging from one another. Magma rises along a rift zone and spreads out at the surface building new sea floor. As a result, the age of the rocks increases as one moves away from the rift zone.
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www.uwsp.edu/geo/faculty/ritter/glossary/s_u/sea_flr_sp...
www.uwsp.edu/geo/faculty/ritter/glossary/s_u/sea_flr_spread.html
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Seafloor Spreading is the usual process at work at divergent plate boundaries, leading to the creation of new ocean floor. As two tectonic plates slowly separate, molten material rises up from within the mantle to fill the opening.
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www.pmel.noaa.gov/vents/nemo/explorer/concepts/spreadin...
www.pmel.noaa.gov/vents/nemo/explorer/concepts/spreading.html
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