oceanic crust

Listing 1 - 4 from 4 for oceanic crust

Pennsylvanian Period
... America were in collision, forming volcanic mountain ranges along their margins as oceanic crust was subducted under the relatively lighter continental crust. This process goes on today around the perimeter of the Pacific ...
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Moving Continents: Images of Continental Drift
... 's outer crust: 1)_oceanic crust (heavy, basaltic rock) and 2)_continental crust (light, granitic rock). Oceanic crust is being continuously created through the process of seafloor spreading, and continuously consumed through subduction. Because of this continuous recycling, no oceanic crust ...
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UCMP Glossary: M
... pycnoxylic. mantle -- That portion of the interior of the Earth that lies between the crust and the core. marine -- Refers to the ocean. marine terrace -- n. A platform of ... is actually composed of closely spaced microvilli. mid-oceanic ridges -- Elongated rises on the ocean floor where basalt periodically erupts, forming new oceanic crust; similar to continental rift zones. mineralization -- The ...
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Concerning the Origin and Distribution of Rhododendrons
... 6(a)). The second process occurs by subduction of a relatively dense oceanic plate, that is, a Iithospheric plate that does not carry a ... went. Immediately north of the zone of contact, the Earth's crust was doubled in thickness and was lifted up forming the Tibetan ... Tibet showing one possible way of explaining the doubling of the crust and the elevation of Tibet. (b) Subduction of ocean plate and ...
www.rhododendron.org