So Mike Jollands and I wrote a paper looking at small scale diffusion in mantle garnet, which shows that the diffusion occurred between 25 days and 400 years before kimberlite ascent (a very short time frame geologically). So that means we have a very rare sample of a mantle metasomatism event that has preserved (possibly a failed kimberlite ascent). It’s in Earth and Planetary Science Letters, feel free to go and read it:
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When is the real ‘end’ of a PhD?
Recently a number of the original OnCirculation contributors have reached the ‘end’ of their PhDs including Evan, Kelly, Nick and myself; however this has led to the question, ‘When is the true end of the PhD?’ or in popular terms ‘Can I call myself a doctor yet?’. Here in Australia, the PhD approval process is different to many other countries, based on our relative isolation from the rest of world. In this post I am going to talk about the various ‘end’ points and where they fit into the process. These stages are what I have been through or still have to come here at RSES, but are similar to most departments around the country.
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