Methods for dating rocks and fossils - Geochronology - Wikipedia


Different methods of radiometric dating vary in the timescale over which they are accurate and the materials to which they can be applied.

So we knew about "deep time," but exploring it was frustrating. For more than a hundred years the best method of arranging its history was the use of fossils or biostratigraphy. That only worked for sedimentary rocks, and only some of those. Rocks of Precambrian age had only the rarest wisps of fossils. No one knew even how much of Earth history was unknown! We needed a more precise tool, some sort of clock, to begin to measure it.


Methods for dating rocks and fossils

Methods for dating rocks and fossils



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