Ocean Basins Learning Geology

Learning Geology Ocean Basins Earth the biography: oceans | national geographic. the low lying areas mentioned in the video are the ocean floors. oceanic crust is basalt and continental crust is composed granite. basalt is heavier so when they both rest on the top of the mantle, oceanic crust sinks lower forming a basin for the water to drain into. Ocean basins. altogether 71% of the area of the globe is occupied by ocean basins that have formed by sea floor spreading and are floored by basaltic oceanic crust. the midocean ridge spreading centres are typically at 2000 to 2500 m depth in the oceans. along them the crust is actively forming by the injection of basic magmas from below to.

Ocean Basins Learning Geology An ocean basin is a bowl shaped depression in the earth, with complex topography along its deep seafloor. all ocean basins are formed from plate tectonic activity, weathering, and erosion. This page titled 5.13: video ocean basins is shared under a cc by 4.0 license and was authored, remixed, and or curated by lumen learning via source content that was edited to the style and standards of the libretexts platform. The concept of plate tectonics was just as revolutionary for geology. the theory of plate tectonics attributes the movement of massive sections of the earth’s outer layers with creating earthquakes, mountains, and volcanoes. many earth processes make more sense when viewed through the lens of plate tectonics. Ocean basins that experience subduction, such as the pacific basin, are shrinking. even though ocean basins make up more than 70 percent of the total land on earth, scientists know relatively little about them. some oceanographers (and some astronomers!) say that we know more about the surface of the moon than we do about the surface of the.