Relative dating uses to estimate how old a fossil is msn speed dating

When paleontologist Mary Schweitzer found soft tissue in a Tyrannosaurus rex fossil, her discovery raised an obvious question -- how the tissue could have survived so long?The bone was 68 million years old, and conventional wisdom about fossilization is that all soft tissue, from blood to brains, decomposes.Atoms may have an equal number of protons and neutrons.If, however, there are too many or too few neutrons, the atom is unstable, and it sheds particles until its nucleus reaches a stable state.Read on to see what it takes to date a fossil and what volcanic ash has to do with it.is any preserved remains, impression, or trace of any once-living thing from a past geological age.

Fw-300 .qstn-title #ya-trending-questions-show-more, #ya-related-questions-show-more #ya-trending-questions-more, #ya-related-questions-more /* DMROS */ .Only hard parts, like bones and teeth, can become fossils.But for some people, the discovery raised a different question.Radiometric dating relies on the properties of isotopes.These are chemical elements, like carbon or uranium, that are identical except for one key feature -- the number of neutrons in their nucleus.

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