Using Fossils to Date Rocks
{"Image DocumentName": "Using Fossils to Date Rocks", "Image ImageDescription": "Geologists sometimes use index fossils to date rocks while in the field. Index fossils: fossils of organisms that lived during a relatively short, well-defined time span.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}