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Scientists learn about the layers deep within the Earth's crust by studying how seismic waves travel through the Earth. If there is an earthquake somewhere, seismographs in many locations will record it. By looking at the time of arrival of the main set of waves, and how the frequencies of the waves are arranged within the set, scientists can learn about the density and other properties of the layers. The relative differences in arrival times of the S and P seismic waves at several recording stations tell scientists about the different speeds those waves were traveling at, which in turn gives information about the density of the material the layer is made of, and how thick the layer is in several directions. [scienceline.ucsb.edu]
Laurence Aufderhar
Wiki User
∙ 10y agoScientists learn about the layers deep within the Earth's crust by studying how seismic waves travel through the Earth. If there is an earthquake somewhere, seismographs in many locations will record it. By looking at the time of arrival of the main set of waves, and how the frequencies of the waves are arranged within the set, scientists can learn about the density and other properties of the layers. The relative differences in arrival times of the S and P seismic waves at several recording stations tell scientists about the different speeds those waves were traveling at, which in turn gives information about the density of the material the layer is made of, and how thick the layer is in several directions. [scienceline.ucsb.edu]
Wiki User
∙ 12y agoThey record the wave lengths,time, history, etc
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How do scientist learn about the mantle and core on earth?
they cut cross-sections of layers using a specially made drill
What is the thick rocky layer around earths core?
The core of the earth is surrounded by the mantle.The earth's core is called the inner core. Just outside that is the outer core, and it is liquid. Outside the liquid outer core is the mantle.
What is the earth's soft middle layer?
The mantle. Earth's layers are core, outer core, mantle.
Which is thicker the earth's mantle or the outer core?
earth's mantle
What is the central part of Earth below the mantle?
The layers of the Earth go as such: Crust --> Mantle --> Outer Core --> Inner Core
What are the 3 main layers of the earth?
MantleCrustcore
What earth scientist study?
Scientists study the earth's atmosphere and the earth's 5 layers like the crust, core, mantle, inner core, and outer core. They also study the 3 types of rock which are Igneous, Metamorphic, and Sedimentary rocks.
What is the layer of the earth above the core called?
The layer of the Earth above the core is called the mantle. It is located between the core and the Earth's crust. The mantle is composed of hot, semi-solid rock.
How do scientist know the measuremnt of the earth mantle and core?
Because of the difference/wavering in the earths magnetic field due to thwe fact the inner core is largely Iron....
What does the crust include?
The Earth's crust includes everything we know ON EARTH except for the Mantle, and core, and the elements of the mantle, and core.
What are the parts of earth called?
The Earth's layers are Crust, Outer Mantle, Inner Mantle, Outer Core, Inner Core.
What causes convection currents it the mantle?
Heat from the core and the mantle itself causes convection currents in earth's mantle.
