Projects per year
My research is aimed at understanding the materials that control large scale processes in the Earth’s mantle and crust. Most of my work involves a combination of high-pressure and temperature experiments and analytical or spectroscopic measurements.
I have a long-standing interest in understanding the interactions between volatile components and silicate minerals and melts. Such work has wide application to understanding the degassing and eruptive style of volcanoes, the physical properties (e.g. density and viscosity) of magmas and mantle melting. Similarly small amounts of volatile components can have a disproportionately large effect on the properties of the mantle, so knowledge of their concentration and distribution in the mantle is crucial for understanding global geodynamics.
Most recently I have become fascinated by the potential of diamonds and their inclusions to elucidate the structure and composition of the deep Earth. I am particularly interested in integrating measurements of defect concentrations in diamonds with data on inclusion compositions, isotopic ratios, diamond internal morphologies and age determinations.
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- 6 Finished
EXPERIMENTAL DETERMINATION OF THE PARTITION COEFFICIENT OF WATER BETWEEN PHENOCRYSTS AND SILICATE MELTS IN MAGMA CHAMBERS
1/08/08 → 1/02/10
SULPHUR DEGASSING FROM VOLACANOES
1/06/05 → 1/10/08
THE DISTRIBUTION OF WATER IN THE EARTH'S MANTLE
1/08/03 → 1/11/06
Deep Mantle Cycling of Oceanic Crust: Evidence from Diamonds and their Mineral InclusionsWalter, MJ., Kohn, SC., Araujo, D., Bulanova, G., Smith, CB., Gaillou, E., Wang, J., Steele, A. & Shirey, SB., 2011, In: Science. 334, 6052, p. 54 - 57
Research output: Contribution to journal › Article (Academic Journal) › peer-review284 Citations (Scopus)
Mineral inclusions in sublithospheric diamonds from Collier 4 kimberlite pipe, Juina, Brazil: subducted protoliths, carbonated melts and primary kimberlite magmatismBulanova, G., Walter, MJ., Smith, CB., Kohn, SC., Armstrong, LS., Blundy, JD. & Gobbo, L., 2010, In: Contributions to Mineralogy and Petrology. 160, 4, p. 489 - 510 22 p.
Research output: Contribution to journal › Article (Academic Journal) › peer-review156 Citations (Scopus)
The dissolution mechanism of sulphur in hydrous silicate melts. II: Solubility and speciation of sulphur in hydrous silicate melts as a function of fO2Klimm, K., Kohn, S. C. & Botcharnikov, R., 2012, In: Chemical Geology. 322-323, p. 250-267
Research output: Contribution to journal › Article (Academic Journal) › peer-review66 Citations (Scopus)
Neutron diffraction with isotope substitution study of levitated liquid Fe2SiO4
Drewitt, J. W. E. (Contributor), Barnes, A. C. (Contributor), Laurent, C. (Contributor), Fischer, H. E. (Contributor), Louis, H. (Contributor), Kohn, S. C. (Contributor), Neuville, D. R. (Contributor) & Michael, W. (Contributor), Institut Laue-Langevin, 1 Jan 2019
DOI: 10.5291/ill-data.6-03-441, https://doi.org/10.5291%2Fill-data.6-03-441
Replication Data for: The storage capacity of fluorine in olivine and pyroxene under upper mantle conditions.
Grützner, T. (Creator), Kohn, S. C. (Creator), Bromiley, D. W. (Creator), Rohrbach, A. (Creator), Berndt, J. (Creator) & Klemme, S. (Creator), Planetary Data Portal, 30 Sep 2022
DOI: 10.35003/wlb2eq, https://planetary-data-portal.org/citation?persistentId=doi:10.35003/WLB2EQ
Data from Gregson et al. CMP 2022
Gregson, C. (Creator), Brooker, R. A. (Creator), Kohn, S. C. (Creator) & Lord, O. T. (Creator), University of Bristol, 12 Jul 2022
DOI: 10.5523/bris.3rlsce9b4502vy5nq8gw4354, http://data.bris.ac.uk/data/dataset/3rlsce9b4502vy5nq8gw4354