> For the complete documentation index, see [llms.txt](https://dating-wendy3141989.gitbook.io/dating/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dating-wendy3141989.gitbook.io/dating/define-radioactive-dating.md).

# Define radioactive dating

Dating > Define radioactive dating

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&#x20;[![View](https://i.imgur.com/hdBcR1O.png)](http://bit.ly/FastDating18) <br>

Dinosaur bones do not have carbon-14 unless contaminated , as the dinosaurs became extinct over 60 million years ago. Carbon-14 has a half life of 5730 years and its daughter isotope is Nitrogen-14. This is not a guarantee for one specific sample.\
&#x20;![define radioactive dating](http://slideplayer.com/9761454/31/images/14/The+process+of+Carbon-14+Dating.jpg)<br>

A continuous record of growth rings has been used to calibrate radiocarbon ages back as far as 10,000 years ago. A stronger magnetic field shields the upper atmosphere better from charged cosmic rays, resulting in less carbon-14 production now than in the past.\
&#x20;![define radioactive dating](http://iphone5cashback.info/img/6275740.jpg)<br>

**Nuclear Chemistry: Half-Lives and Radioactive Dating** - Radioactive decay is a natural process and comes from the atomic nucleus becoming unstable and releasing bits and pieces. If you have ever taken a tour of a cave and seen water dripping from stalactites on the ceiling to stalagmites on the floor of the cave, you have seen carbonate deposits being formed.\
&#x20;![define radioactive dating](http://1.bp.blogspot.com/-E1zLF_g0Mh4/UXbmDPFUwAI/AAAAAAAAABU/zZmT8LOri3g/s1600/RadiometricDating.002.jpg)<br>