Title Slide: Name(s), affiliations Intro: Field, definition Intro: Problem, history

Intro: Point preview, central idea Body Point 1: Definition, picture BP1: Revised question

BP1: Solution explained BP1: Explain graph data BP1: Explain results in word

BP2: isotope ratio – def’n, info BP2: High ratio mechanism BP2: Graph – our zircons high ratio

BP2: Discussion, implications BP3: [Flexible time] Collection of… … other evidence, picture

Conclusion: Review body points C: Main result, significance C: [Flexible time] Open questions