the outer layer of earth ; includes continents,oceans and ocean floor
important and uprising clues about earths crust have been collected from the sea floor using sonar
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.
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.
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.
earths crust includes ocean floors and
crust
the Crust
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.
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.
the outer layer of earth ; includes continents,oceans and ocean floor
important and uprising clues about earths crust have been collected from the sea floor using sonar
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. 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.
hydrosphere sedimentary rock basalt ocean floor granite foundation
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.
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.