oceanic crust การใช้

• Oceanic crust has a smaller amount of silicon ( mafic rock ).
• Melting occurred in deep sediments and in the basaltic oceanic crust beneath.
• Geologically, an ocean is an area of oceanic crust covered by water.
• These are aligned parallel to magnetic anomalies in the underlying oceanic crust.
• The shallow structure of the oceanic crust is simpler than on land,
• The subducted oceanic crust triggers volcanism, although the basic mechanisms are varied.
• The Pacific Ocean floor subducted under this oceanic crust between the continents.
• Oceanic crust is hydrothermally altered causing addition of quartz and sodium.
• Oceanic crust is also denser than continental crust owing to their different compositions.
• The combination of these processes recycles the oceanic crust back into the mantle.
• A large continental block existed with oceanic crust subducting underneath it.
• Beneath the wedge are several seismic layers within the oceanic crust.
• They also found that the oceanic crust was much thinner than continental crust.
• Ocean island basalts are found on islands and volcanoes located on oceanic crust.
• Through subduction, oceanic crust and lithosphere returns to the convecting mantle.
• The oceanic crust is moving away from the Explorer Ridge to either side.
• The intrusions were formed when upwelling asthenosphere partially melted thick overlying oceanic crust.
• As the oceanic crust dives into trenches, the continental crust collects above them.
• The circulation of hydrothermal fluids through young oceanic crust causes chlorite, and serpentine, respectively.
• The oceanic crust is moving away from the East Pacific Rise to either side.