Dating techniques

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Sedimentary rock is made of particles derived from other rocks, so measuring isotopes would date the original rock material, not the sediments they have ended up in.

However, there are radiometric dating methods that can be used on sedimentary rock, including luminescence dating.

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Isotopes are important to geologists because each radioactive element decays at a constant rate, which is unique to that element.The atoms of some chemical elements have different forms, called isotopes.These break down over time in a process scientists call radioactive decay.Relative techniques are of great help in such types of sediments.➤ It determines if an object/event is younger or older than another object/event from history.➤ Relative dating is qualitative.➤ This technique helps determine the relative age of the remains.➤ It is less specific than absolute dating.➤ Relative dating is comparatively less expensive and time-efficient.➤ It works best for sedimentary rocks having layered arrangement of sediments.The following are the major methods of relative dating.

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