Dating in Archaeology
{"Image DocumentName": "Absolute-Dating Methods", "Image ImageDescription": "The discovery of radioactivity destroyed Kelvin\u2019s argument for the age of Earth. Radioactivity is the spontaneous decay of an atom\u2019s nucleus to a more stable form. The heat from radioactivity helps explain why the Earth is still warm inside. Radioactivity provides geologists with a powerful tool to measure absolute ages of rocks and past geologic events.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}