Dr Manuel Keith

Manuel KeithHonorary Research Fellow

Direct Contact:
E: mk528@le.ac.uk

Research Interests

My research focuses on the global metal cycle in the Earth’s crust. The chemical composition of magmatic rocks, sulphide ores and their host mineral phases provide important information on metal fractionation processes in magmatic and hydrothermal systems. The combined use of trace elements and stable isotopes (e.g., S and Tl) offer the opportunity to study metal fractionation processes from their source region, such as the sub-arc mantle, through the crust to the depth of metal deposition. Active submarine magmatic-hydrothermal systems (e.g., Brothers volcano) are interpreted to be analogues of ancient volcanic-hosted massive sulphide deposits (e.g., Troodos) and possibly some subaerial epithermal systems (e.g., Milos). Hence, the comparison of active and fossil magmatic-hydrothermal systems offers the unique opportunity to study ore-forming processes through space and time. Besides the academic interest these studies also have a significant political, economic and environmental impact due to an increasing demand of rare metals (e.g., Te). Furthermore, active magmatic-dominated porphyry-epithermal systems are often associated with volcanoes that are characterised by violent explosive eruptions representing a hazard for the local population, such as Kolumbo-Santorini (Greece) and Kawah Ijen (Indonesia).

Publications

  • Keith, M., Haase, K. M., Klemd, R., Smith, D. J., Schwarz-Schampera, U., Bach, W., 2018, Constraints on the source of Cu in a submarine magmatic-hydrothermal system, Brothers volcano, Kermadec island arc: Contributions to Mineralogy and Petrology, 173: 40, 1-16.
  • Keith, M., Smith, D. J., Jenkin, G. R. T., Holwell, D. A., Dye, M. D., 2017, A review of Te and Se systematics in hydrothermal pyrite from precious metal deposits: insights into ore-forming processes: Ore Geology Reviews, 96, 269-282.
  • Smith, D. J., Naden, J., Jenkin, G. R. T., Keith M., 2017, Hydrothermal alteration and fluid pH in alkaline-hosted epithermal systems : Ore Geology  Reviews, 89, 772-779.
  • Keith, M., Haase, K. M., Klemd, R., Schwarz-Schampera, U., Franke, H., 2017, Systematic variations in magmatic sulphide chemistry from mid-ocean ridges, back-arc basins and island arcs: Chemical Geology, 451, 67-77.
  • Keith, M., Haase, K. M., Klemd, R., Krumm, S., Strauss, H., 2016, Systematic variations of trace element and sulfur isotope compositions in pyrite with stratigraphic depth in the Skouriotissa volcanic-hosted massive sulfide deposit, Troodos ophiolite, Cyprus: Chemical Geology, 423, 7-18.
  • Keith, M., Häckel, F., Haase, K. M., Schwarz-Schampera, U., Klemd, R., 2016, Trace element systematics of pyrite from submarine hydrothermal vents: Ore Geology Reviews, 72, 728-745.
  • Regelous, M., Haase, K. M., Freund, S., Keith M., Weinzierl, C. G., Beier, C., Brandl, P. A., Endres, T., Schmidt, H., 2014, Formation of the Troodos Ophiolite at a triple junction: Evidence from trace elements in volcanic glass: Chemical Geology, 386, 66-79.
  • Keith, M., Haase, K. M., Schwarz-Schampera, U., Klemd, R., Petersen, S., Bach, W., 2014, Effects of temperature, sulfur, and oxygen fugacity on the composition of sphalerite from submarine hydrothermal vents: Geology, 42, 699-702.
  • Freund, S., Haase, K. M., Keith, M., Beier, C., Garbe-Schönberg, D., 2014, Constraints on the formation of geochemically variable plagiogranite intrusions in the Troodos Ophiolite, Cyprus: Contributions to Mineralogy and Petrology, 167, 1-22.

Conference Abstracts

  • Keith, M., Smith, D. J., Jenkin, G. R. T., Holwell, D. A., 2017, Te and Se systematics in hydrothermal pyrite from precious metal ore deposits [talk] In: Goldschmidt Conference, Paris, France.
  • Keith, M., Smith, D. J., Jenkin, G. R. T., Holwell, D. A., 2016, Global Se and Te systematics in hydrothermal pyrite from different ore deposits: A review [talk] In: Mineral Deposits Studies Group, 40th Annual Winter Meeting, Bristol, UK.
  • Keith, M., Haase, K. M., Klemd, R., Krumm. S., Strauss, H., 2016, Systematic variations in the trace element and sulphur isotope composition of pyrite with stratigraphic depth in the Skouriotisse VHMS deposit, Troodos ophiolite, Cyprus [poster] In: Mineral deposits Studies Group, 39th Annual Winter Meeting, Dublin, Ireland.
  • Keith, M., Haase, K. M., Klemd, R., Krumm, S., Strauss H., 2015, Temperature controlled trace element variations in pyrite within the Skouriotissa sulfide deposit, Troodos ophiolite, Cyprus [poster] In: Goldschmidt Conference, Prague, Czech Republic.
  • Regelous M., Haase, K. M., Beier, C., Brandl, P., Keith, M., Weinzierl, C., 2015, The Troodos Ophiolite was probably formed at a RTT/RTF Triple Junction [talk] In: Goldschmidt Conference, Prague, Czech Republic.
  • Blaauwbroek, N., Keith, M., Petersen S., Bach, W., 2015, On the Behavior of Sb and As in Hydrothermal Systems from the Manus Basin, Papua New Guinea [poster] In: Goldschmidt Conference, Prague, Czech Republic.
  • Keith, M., Häckel, F., Haase, K. M., Schwarz-Schampera, U., Klemd, R., Petersen, S., 2013, Trace element systematics of pyrite from submarine hydrothermal vents [poster] In: Goldschmidt Conference 2013, Florence, Italy.
  • Freund, S., Keith, M., Endres, T., Schmidt, H., Beier, C., Regelous, M., Haase, K. M., 2012, Formation of a silicic upper oceanic crust in the Troodos ophiolite, Cyprus [poster] In: European Mineralogical Conference, Prague, Czech Republic.

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University of Leicester
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E: geology@le.ac.uk

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