Dr Manuel Keith

Manuel KeithResearch Associate (NERC) in Applied and Environmental Geology

Direct Contact:
T
: 0116 252 5314
E: mk528@le.ac.uk

Research group: Volcanoes, Tectonics and Mineral Resources Research Group

Research Interests

My research focuses on global mineralogical and chemical variations in magmatic and hydrothermal sulphides that form during processes in the earth’s crust. The trace element and sulphur isotope composition of these sulphides provides important information on metal fractionation processes in magmatic and hydrothermal systems. Sulphide-silicate melt exsolution is a crucial process for trace metal fractionation in magmatic systems. Such fractionation processes control the composition of wall rock-hosted magmatic sulphides in hydrothermal systems that represent a potential metal source. Leaching of these metals and their transport to the seafloor results in the precipitation of hydrothermal sulphides during fluid ascent and discharge at the seafloor. These processes result in the formation of active submarine black smoker systems that represent the modern analogues of volcanic-hosted massive sulphide deposits.

Publications

  • 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, accepted.
  • 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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