| After much thought, he proposed in 1960 that the movement of the continents was a result of sea-floor spreading. |
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| The main figure demonstrates how sea-floor anomalies, also known as magnetic stripes, develop during sea-floor spreading. |
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| Surface structures and crustal-scale geophysical studies have suggested the WFB is analogous to a sea-floor spreading centre. |
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| Reversals of the Earth's magnetic field, allied to sea-floor spreading, have left their imprint in the form of a magnetic tape recorder on the sea-floor. |
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| Create a poster that illustrates sea-floor spreading in the Atlantic ocean basin. |
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| Note the Moho near 1000 km in each frame, which was thinned by extension prior to the onset of sea-floor spreading. |
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| During periods of accelerated sea-floor spreading and mid-ocean ridge activity, sea-levels rose so that parts of the continents were flooded and forests were destroyed. |
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| Yet the tectonic and geomorphological processes by which these margins continue to evolve long after sea-floor spreading is effected are not wholly evident. |
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| However, the recognition of sea-floor spreading made sense of continental splitting without having to invoke earth expansion. |
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| They are places where the plates are moving apart and molten rock is welling up from below the surface to fill the gap a phenomenon known as sea-floor spreading. |
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| The faults appeared when Dr Oldenburg and Dr Brune tried to mimic sea-floor spreading by pulling the surface layer of their wax apart. In this section Sayonara, spaceflight? |
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