This PowerPoint briefly explains radiometric dating and introduces the terms: half-life, closure temperatures, decay constant, decay law, parent isotope, daughter isotope. It looks at potassium-argon, samarium-neodymium and rubidium-strontium decay and explains how these three methods are used to date the age of a rock.
Video showing impressions of the field meeting in Bremen in 2018 for the IGCP 652 Project Meeting: “Reading geologic time in Palaeozoic sedimentary rocks”. https://vimeo.com/294153534
A variety of lesson plans for introducing stratigraphy. Content via Mike Tuke Partnership
An exercise that encourages students to look at the ways in which geologists began to understand time
A geological puzzle to build a geological history and cross-section
The order of events based on dyke and vein cross-cutting relationships in Donegal, Ireland.
An activity to reconstruct the geological history of an area based on a sea cliff exposure.
An activity featuring trace fossils related to trilobites.
A demonstration of how isotope ratios recorded in minerals change over time