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Rodiometric dating

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How did scientists figure that the earth was made of layers?

Scientists inferred that the Earth is made of layers through the study of seismic waves generated by earthquakes. By analyzing how these waves travel through the Earth, scientists were able to identify different layers based on variations in density, composition, and rigidity. This led to the development of the Earth's layered structure known as the crust, mantle, outer core, and inner core.


How do transform move?

convection current from the magma in the centre of the earth pushes plates to move.


What is the average age of oceanic crust?

The average age of oceanic crust is about 200 million years. This figure takes into account the continuous process of crust formation at mid-ocean ridges and its subsequent destruction at subduction zones.


How do seismographs help scientists study the earth's interior?

Seismic waves bounce off things inside of the Earth, helping scientists figure out it's interior. An example is like if you taped a block in a box, put a marble inside of the box, and closed the lid. By tilting the box, the marble would roll and you'd get a pretty good idea where the block is located.


What uses the age of layers to figure out how old something is?

Geochronology is the branch of science that uses the age of layers in rock formations to determine the age of objects or events. By studying the sequence of rock layers and the fossils contained within them, scientists can establish the relative age of the materials and events they are investigating. This information helps in dating archaeological artifacts, understanding past climates, and interpreting Earth's history.