Radioactive dating is also called


26-Mar-2016 17:24

The biggest assumption is that, to first order, the number of asteroids and comets hitting the Earth and the Moon was the same as for Mercury, Venus, and Mars. The bottom line is that the more craters one sees, the older the surface is.This can be interpreted in two ways: why it is important to know the age of a planet or how is age dating important in determining the age of a planet?In a way this field, called geochronology, is some of the purest detective work earth scientists do.There are two basic approaches: relative age dating, and absolute age dating.

radioactive dating is also called-33

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It takes a certain amount of time for half the atoms in a sample to decay.

We can get absolute ages only if we have rocks from that surface.

For others, all we are doing is getting a relative age, using things like the formation of craters and other features on a surface.

Based on our study of meteorites and rocks from the Moon, as well as modeling the formation of planets, it is believed (pretty much well-established) that all of the objects in the Solar System formed very quickly about 4.56 billion years ago.

When we age date a planet, we are actually just dating the age of the surface, not the whole planet.To determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This rule is common sense, but it serves as a powerful reference point.



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