Water storage in the earth's mantle - understanding the process of OH incorporation in olivine. The amount of water in the Earth's mantle is thought to be sufficient to replace the surface oceans more than ten times. Whether this water exists in a fluid, melt, or mineral is important for understanding a range of mantle properties. The entire upper mantle water budget may be accommodated at defect sites in the mineral olivine. However, defects found in natural olivine do not correspond to thos ....Water storage in the earth's mantle - understanding the process of OH incorporation in olivine. The amount of water in the Earth's mantle is thought to be sufficient to replace the surface oceans more than ten times. Whether this water exists in a fluid, melt, or mineral is important for understanding a range of mantle properties. The entire upper mantle water budget may be accommodated at defect sites in the mineral olivine. However, defects found in natural olivine do not correspond to those produced
experimentally. Therefore, previous conclusions on water storage in the mantle are questionable. To address this problem the mechanism of water incorporation in olivine will be investigated using experimental petrology and spectroscopy.Read moreRead less
The effects of local strain on the crystal chemistry of solid solutions. The concept of the solid solution, the substitution of one kind of atom for another in a crystal structure, is a central idea in both mineral sciences and solid state chemistry. Such atomic substitutions alter local crystal chemistry and hence always introduce strain into crystal lattices. In this project we aim to characterize this substitutional strain. Ultimately this should lead to a better understanding of the geologic ....The effects of local strain on the crystal chemistry of solid solutions. The concept of the solid solution, the substitution of one kind of atom for another in a crystal structure, is a central idea in both mineral sciences and solid state chemistry. Such atomic substitutions alter local crystal chemistry and hence always introduce strain into crystal lattices. In this project we aim to characterize this substitutional strain. Ultimately this should lead to a better understanding of the geological history of rocks, improvements in metal recovery from ores and to the design and synthesis of new materials.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100236
Funder
Australian Research Council
Funding Amount
$180,000.00
Summary
Facilities for spectroscopy and diffraction at high pressures. The provision of infrastructure for the study of novel materials under high pressures will enhance Australia's capability in creating new materials and in creating new devices that meet needs in communication, environment and medicine applications. The new facility will enable researchers to understand the response of structures to extreme pressures and will exploit the unique capabilities of the synchrotron light.