A fundamental question in Earth and planetary systems is: how are chemical elements distributed from high temperature in the planet’s interior to low temperatures at the surface, atmosphere and/or ocean? This question is at the heart of understanding how life originated, how planetary atmospheres develop, how ore deposits form and how climate is regulated. Currently, there is no consensus on the sources and sinks of elements on Earth now, nor over Earth’s history, in part because some elements are volatile: preferring to be in the gas phase and they leave little trace.
Gas mixtures play a crucial role in distributing elements between different parts of Earth and planet-forming systems over a range of settings and temperatures. Despite the fundamental role of gases in geochemical cycles, few experiments exist on gas-solid or gas-melt reactions and the molecular-scale reaction mechanisms are poorly constrained by experiment, theory or field observations. Our recent work shows that these reactions may be extraordinarily rapid.
PhD and Masters students are sought for geochemistry and petrology research projects at the Research School of Earth Sciences at The Australian National University, Canberra ACT (rses.anu.edu.au). Students who might be interested in the projects may have undergraduate degrees in Earth Sciences, Chemistry, Environmental Science, Materials Science, or Engineering. Projects that investigate gas-solid reactions using experiments combined with state-of-the-art analysis of laboratory, field samples, and modelling are available. Students will have access to state-of-the-art analytical and experimental facilities (rses.anu.edu.au/research/facilities) and a vibrant PhD student population (oncirculation.com).
Interested applicants should send an e-mail, preferably with a CV or resume, to Dr. Penny King email@example.com.
PhD Opportunities with the Desert Fireball Network
Curtin University, Perth, Australia
The Desert Fireball Network team at Curtin University are seeking two PhD candidates (fully funded) to work within the team to analyse the massive dataset. Potential projects include, but aren’t limited to:
• Statistical analysis of asteroidal material arriving at 1 AU;
• Fireball modelling;
• Probabilistic orbital dynamics of meteorites (and their parent asteroids);
• Tracking space debris;
• Fitting orbital and compositional data into an overall model of the compositional structure of the Solar System.
There will be opportunities to become involved in all other areas of the project, including meteorite recovery in Australia, and sample analysis.
More information about the Desert Fireball Network is available on the website www.fireballsinthesky.com.au
To apply, please send an email (with subject heading DFN PhDs) including a CV and a one-page summary of your research interests to Professor Phil Band (firstname.lastname@example.org).