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Geophysicists use seismic defraction and reflection techniques to identify changes in the composition and density of the earth's interior.
The base of the crust is marked by a region of significant change in the velocity of seismic waves. This region is known as the Moho (Mohorovičić discontinuity) and is cuased by the change in compostion of the materials forming the interior of the earth.
Geophysiciscst can measure the travel time of seismic waves through the earth and can use this to estimate the depth of this region and hence the thickness of the crust in different areas.
What else can I help you with?
What units measure tectonic plates movement?
Tectonic plate movement is measured in millimeters per year. This is typically referred to as plate motion velocity. Geologists use Global Positioning System (GPS) technology to track the movement of tectonic plates.
What are the large thin plates that move relative to one another on the outer surface of earth called?
They are called tectonic or lithospheric plates.
How many tectonic plates do we have?
there are 7 huge plates but dozens of smaller plates
What is the difference between Continental plates and Tectonic plates?
Continental plates are tectonic plates. They are tectonic plates upon which continents rest, and they move as do all tectonic plates. Basically, there is no difference, other than the fact that oceanic plates are another type of tectonic plate.
What 3 ways tectonic plates float?
Tectonic plates float on the semi-fluid asthenosphere due to their buoyancy, which is influenced by their thickness and density. The process of isostasy allows the plates to adjust to changes in weight, such as the accumulation of ice or sediment. Additionally, convection currents in the underlying mantle can create forces that push and pull the plates, facilitating their movement and interaction at plate boundaries.
Why is the thickness of the tectonic plates not the same all over?
because the thickness of the crust is different
What units measure tectonic plates movement?
Tectonic plate movement is measured in millimeters per year. This is typically referred to as plate motion velocity. Geologists use Global Positioning System (GPS) technology to track the movement of tectonic plates.
What are the large thin plates that move relative to one another on the outer surface of earth called?
They are called tectonic or lithospheric plates.
Earthquakes occur mainly allong the edges of?
Tectonic plates and fault lines created by the movement of tectonic plates.
What can tectonic plates also be called instead of tectonic plates?
Tectonic plates are also "Continental Crust" and "Oceanic Crust". Also lithospheric plates.
Can tectonic plates known as crustle plates?
Yes, tectonic plates are also known as crustal plates.
Who named the tectonic plates tectonic and why?
harry hess named the tectonic plates but I'm not sure why =/
How many tectonic plates do we have?
there are 7 huge plates but dozens of smaller plates
What is the difference between Continental plates and Tectonic plates?
Continental plates are tectonic plates. They are tectonic plates upon which continents rest, and they move as do all tectonic plates. Basically, there is no difference, other than the fact that oceanic plates are another type of tectonic plate.
Are the tectonic plates in the earths inner core?
No the tectonic plates are on top of the crust.
Tectonic plates float on what?
The tectonic plates float on the lithosphere. This overlies the asthenosphere.
Is tectonic plates solid?
Yes. Tectonic plates are in fact mostly solid.
