Age of a rock using radiometric dating

26 Apr

Geologists often need to know the age of material that they find.

They use absolute dating methods, sometimes called numerical dating, to give rocks an actual date, or date range, in number of years.

Each original isotope, called the parent, gradually decays to form a new isotope, called the daughter.

Each isotope is identified with what is called a ‘mass number’.

When ‘parent’ uranium-238 decays, for example, it produces subatomic particles, energy and ‘daughter’ lead-206.

Isotopes are important to geologists because each radioactive element decays at a constant rate, which is unique to that element.

This technique is generally used to date igneous and metamorphic rock, which are rocks that were once melted due to extreme heat and pressure.

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The best-known radiometric dating techniques include radiocarbon dating, potassium-argon dating, and uranium-lead dating.

First, it provides no evidence whatsoever to support their claim that the earth is very young.

If the earth were only 6000–10 000 years old, then surely there should be some scientific evidence to confirm that hypothesis; yet the creationists have produced not a shred of it so far.

Dating the particles which make up the rock wouldn’t give you the age of the rock itself.

In addition, the redeposition process upsets the conditions necessary to achieve accurate results through radiometric dating.