fossil by Andy Delgado https://padlet.com/andybdelgado22/ng0w5b58zyvr en-us 2018-09-04 13:06:46 UTC 2025-11-20 01:59:05 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Carfront.png fossils andybdelgado22 https://padlet.com/andybdelgado22/ng0w5b58zyvr/wish/277527076 2018-09-04 13:07:50 UTC https://padlet.com/andybdelgado22/ng0w5b58zyvr/wish/277527076 The most important are Relative Dating, in which fossils and layers of rock are placed in order from older to younger, and Radiometric Dating, which allows the actual ages of certain types of rock to be calculated. Relative Dating. andybdelgado22 https://padlet.com/andybdelgado22/ng0w5b58zyvr/wish/277535254 2018-09-04 13:23:06 UTC https://padlet.com/andybdelgado22/ng0w5b58zyvr/wish/277535254 Absolute dating is used to determine a precise age of a rock or fossil through radiometric dating methods. This uses radioactive minerals that occur in rocks and fossils almost like a geological clock. It’s often much easier to date volcanic rocks than the fossils themselves or the sedimentary rocks they are found in. So, often layers of volcanic rocks above and below the layers containing fossils can be dated to provide a date range for the fossil containing rocks. andybdelgado22 https://padlet.com/andybdelgado22/ng0w5b58zyvr/wish/277539275 2018-09-04 13:29:56 UTC https://padlet.com/andybdelgado22/ng0w5b58zyvr/wish/277539275