Earth Sciences Division Staff: Nicholas Pester
Nick Pester received a Ph.D. in Geology from the University of Minnesota in 2012. His research involves experimental and field investigations pertaining to the geochemistry of hydrothermal reactions. Specific studies currently include: the chemical evolution of deep-sea hydrothermal vent fluids and the impacts on associated biota, the abiotic synthesis and stability of organic compounds, potential reservoir effects related to geological carbon sequestration or carbon capture and storage, the effect of high salinity fluids on subsurface reactions, and the effects of fluid chemistry on sub-critical crack growth in deforming materials.
- High-temperature/pressure fluid-mineral and fluid-fluid phase equilibria relevant to natural hydrothermal systems
- Experimental design and use of hydrothermal reaction cells/techniques and high-temperature/pressure flow systems
- Volatile gas equilibria and hydrocarbon formation in geothermal systems
- Geochemical effects of carbon capture and storage processes
- Stability of hydrocarbons and biomolecules in fluid-mineral systems
- Chemical effects on subcritical crack growth in glass/minerals
Field Research – Oceanographic Expeditions
- Cruise AT-11-27 (R/V Atlantis, DSV Alvin) to the Galapagos Rift, 5/20 - 6/3, 2005
- Cruise AT-11-31 (R/V Atlantis, DSV Alvin) to the Main Endeavour Field, Juan de Fuca Ridge, 8/15 - 9/2, 2005. Starboard scientist aboard Alvin dive 4142.
- Cruise AT-15-28 (R/V Atlantis, DSV Alvin) to 9-13°N, East Pacific Rise, 12/30/07 - 1/13/08. Port scientist aboard Alvin dive 4392.
- Cruise KNOX18RR (R/V Roger Revelle, ROV Jason II) to 26-37°N, Mid-Atlantic Ridge, 7/9 - 8/18, 2008.
Shipboard duties included dive planning, acquisition of hydrothermal fluid samples, dissolved volatile analysis (e.g. H2, CH4, CO2) by gas chromatography and wet (electrochemical) analytical techniques (e.g. H2S, chlorinity, alkalinity, pH), sampler preparation and recovery and sub-sample preservation for shore-based analyses.
Gas Chromatography (GC), GC-MS, Hydrothermal Atomic Force Microscopy, Scanning Electron Microscopy, ICP-OES, Ion Chromatography, ICP-MS, XRD, XAFS/XANES, Interferometry
Proficient in geochemical modeling software (e.g. Geochemist’s Workbench, supcrt92) and the development of high-temperature/pressure thermodynamic databases, including incorporation of new experimental data to better model natural hydrothermal systems and interpret field data.
- Bachelor of Arts, Geology, Gustavus Adolphus College, St. Peter, MN, 2000 (98 - 99 academic year was spent at the University of Edinburgh, Scotland)
- Doctor of Philosophy, University of Minnesota, Minneapolis, MN
(thesis advisor: William E. Seyfried, Jr.), 2012
- Univ. of MN - Lab instructor for Intro Geology 1001, Oceanography 1006 and Geochemical Principles 3303W (2005 - 2010)
- Univ. of MN – T.A. and lecturer for Oceanography 1006 (2009 - 2012)
- Univ. of MN - compiled and authored Oceanography 1006 lab manual (2007, still in use)
- William Emmons Fellowship, Univ. of MN, 2007 - 08
- Richard Clarence Dennis Graduate Fellowship, Univ. of MN, 2007 - 08
- Kimball Forrest Fellowship, Univ. of MN, 2008 - 09
- Goldschmidt Student Travel Grant, Geochemical Society, 2010, 2011 and 2012