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What is the definition for earth's crust?
the outer layer of earth ; includes continents,oceans and ocean floor
How modern technology helps prove the theory of plate tectonics?
important and uprising clues about earths crust have been collected from the sea floor using sonar
What is the theory that earths crust is in a slow motion?
Plate Tectonics. The crust is in large, irregular plates shuffling around by new rock extruded from the upper Mantle in ocean plate boundaries, balanced by the loss of the fringes of the ocean-floor plates to subduction.
Why the crust is thinner than the ocean floor?
The Earth's crust is thinner than the ocean floor because the oceanic crust is formed at mid-ocean ridges where heat from the mantle creates new crust through volcanic activity. This process creates younger, hotter, and thinner crust in the ocean compared to the older and thicker continental crust.
Where would the thickness of the earths crust be about 40km and where would it be about 8km?
The thickness of the Earth's crust is about 40 km in continental regions, like under mountain ranges. In oceanic regions, such as under the ocean floor, the Earth's crust is much thinner, around 8 km.
Why the oceans floor is considered part of Earth's crust?
earths crust includes ocean floors and
Continents and the ocean floor are part of earths solid rocky surface called?
crust
What layer of the earth is land?
the Crust
What scientist studies the earths crust the mantle the crust continents and the ocean floor?
A geologist studies the Earth's crust, mantle, continents, and ocean floor. They investigate the composition, structure, and processes of these layers to understand Earth's history and dynamics. Geologists also examine natural resources and environmental implications related to these components.
How wide is the crust?
The Earth's crust can vary in thickness, but on average it is about 5-70 kilometers (3-44 miles) thick. However, it can be much thicker under mountain ranges and thinner under the ocean floor.
What is the definition for earth's crust?
the outer layer of earth ; includes continents,oceans and ocean floor
How modern technology helps prove the theory of plate tectonics?
important and uprising clues about earths crust have been collected from the sea floor using sonar
What causes the sea floor to spread apart?
Sea floor spreading occurs due to the movement of tectonic plates away from each other. This movement creates a gap or rift at the mid-ocean ridge where magma rises up from below the Earth's crust, solidifying to form new crust. Over time, this process results in the continuous widening of the sea floor.
True or false magnetic stripes on the ocean floor are places where oceanic crust sinks back to the mantle?
True. Magnetic stripes on the ocean floor are created by alternating bands of magnetic polarities in the oceanic crust. These stripes are evidence of seafloor spreading where new crust is formed at mid-ocean ridges, pushing older crust away. Subduction zones are where older crust sinks back into the mantle.
What are the four major components of the earths crust?
hydrosphere sedimentary rock basalt ocean floor granite foundation
What is the theory that earths crust is in a slow motion?
Plate Tectonics. The crust is in large, irregular plates shuffling around by new rock extruded from the upper Mantle in ocean plate boundaries, balanced by the loss of the fringes of the ocean-floor plates to subduction.
Why the crust is thinner than the ocean floor?
The Earth's crust is thinner than the ocean floor because the oceanic crust is formed at mid-ocean ridges where heat from the mantle creates new crust through volcanic activity. This process creates younger, hotter, and thinner crust in the ocean compared to the older and thicker continental crust.
