Earth and Environmental science
presentation on isotope rock dating
By Youmna
Introduction into the process
- Natural process
- alpha
- beta
- Gamma
In order of weakest to strongest -> Alpha, Beta and Gamma.
Half Life and explaination
One of Australia's oldest rock
zircon crystal around 4.4 billion years old.
Below is a micoscopic picture of it.
May possibly be the oldest piece of Earth.
Bibliography
The Process of Natural Radioactive Decay (2014) :Dummies http://www.dummies.com/how-to/content/the-process-of-natural-radioactive-decay.html [assessed 3/3/2014 and 6/3/2014]
Anne Marie Helmenstine, Ph.D (2014) What Is Radioactivity? What is Radiation? [about.com] http://chemistry.about.com/od/chemistryfaqs/f/radioactivity.htm [assessed 3/3/2014 and 6/3/2014]
Absolute dating: [ Foundational concepts]
http://paleobiology.si.edu/geotime/main/foundation_dating3.html [accessed 7/3/2014]
Half life (2014) : Wikipedia http://en.wikipedia.org/wiki/Half-life [accessed 10/3/2014]
Rock of Ages: Microscopic 4.4 billion-year-old crystal is the oldest-known fragment of Earth (2014) : Daily mail {UK} http://www.dailymail.co.uk/sciencetech/article-2566588/Rock-Ages-Microscopic-4-4-billion-year-old-crystal-oldest-known-fragment-Earth.html [accessed 10/3/2014]