Absolute dating
{"Image DocumentName": "Absolute Age: Radiometric Dating", "Image ImageDescription": "Uses Radioactive Isotopes. Compares relative % of parent:daughter. Gives specific age of rock.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}