This dissertation attempts to determine three non-traditional stable isotope compositions, lithium (Li), magnesium (Mg) and molybdenum (Mo), of Earth's mantle and investigate the possible processes that cause the mass-dependent fractionation of the samples and apply it to trace diffusion and recycling processes al high temperature. Analytical techniques for Li and Mg isotope analysis are based on the approach of James and Palmer (2000) and Pogge ven Strandmann el a1. (2011). Tbe precision of Mg isotope analysis has been improved 10 < 0.03%0. This dissenation has built up a successful approach for the separation and precise isotope analyses of Mo in mantle basaliS (25D < 0.06%0) based on the approach of (Archer and Vance, 2008) and modified it for igneous rocks with low Mo concentration.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:601207 |
| Date | January 2013 |
| Creators | Lai, Yi Len |
| Publisher | University of Bristol |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
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