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    • Environment and Energy
    • Field Skills
    • Geohazards
    • Geophysics
    • Geological Time
    • Laboratory Techniques
    • Plate Tectonics
    • Rocks, Minerals and Fossils
    • Structural Geology
    • Volcanology
  • Links
    • Seminars
  • Field Safety
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Geological Time

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How old is this rock?

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.

How old is this rock?Read More

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Reading geologic time

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

Reading geologic timeRead More

Red Rocks

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Stratigraphy

A variety of lesson plans for introducing stratigraphy. Content via Mike Tuke Partnership

StratigraphyRead More

Sand Ripples

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The length of geological time

An exercise that encourages students to look at the ways in which geologists began to understand time

The length of geological timeRead More

Red Rocks

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Georiddle – A Stratigraphy Problem

A geological puzzle to build a geological history and cross-section

Georiddle – A Stratigraphy ProblemRead More

Granite veins

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Age Relations

The order of events based on dyke and vein cross-cutting relationships in Donegal, Ireland.

Age RelationsRead More

Red Rocks

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A Stratigraphy Problem

An activity to reconstruct the geological history of an area based on a sea cliff exposure.

A Stratigraphy ProblemRead More

Fossil

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Cambrian Detective Story

An activity featuring trace fossils related to trilobites.

Cambrian Detective StoryRead More

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Isochron plots

A demonstration of how isotope ratios recorded in minerals change over time

Isochron plotsRead More

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