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Welcome to the Biogeochemistry Lab

where our main research interests include sedimentary geochemistry, marine systems and biogeochemical cycles - in modern marine environments and ancient settings. Our current research is centered around trace metal and sulfur cycling in deep marine trench sediments off Japan. This lab is equipped for trace metal analysis, sulfur extraction and determination of iron phases.
Snow falling on river bend in Red River New Mexico.

Our current research includes:

  • Early diagenesis in modern marine sediments and it's impact on primary depositional signals
  • Subsurface metal cycling and it's implication for the (ultra) deep biosphere
  • Investigation and application of paleoproxies with emphasize on redox-sensitive trace metals
  • Geochemical cycles of methane, iron, sulfur, and related trace metals in active margin environments
Lake shoreline with tall grass.

We have high-quality instruments and equipment in our lab

A few of our major equipment are (ICP-MS) Inductivley coupled plasma-mass spectrometer, Thermo Scientific ICAP Qc (high sensitivity cell mode performance) with Cetac autosampler. Along with a Carbon/Sulfur Analyzer (CS-2000) ELTRA, with induction and resistance furnace, and inorganic carbon analyzer module.
Lab equipment

We also have sample preparation

along with miscellaneous equipment
  • PicoTrace acid sample digestion system (temperature and pressure digestion)
  • Ductless polypropylene fume hood (Patriot;Airclean Systems)
  • Ductless laminar fume hood (AC600;Airclean Systems)
  • Water purification system (MilliQ)
  • Acid purification system (Savillex Corporation)
  • Analytical Balance (Mettler Toledo) five digit (XSE205DU), and three digit (MS1003)
  • Horizontal Air Flow Oven
  • Overhead Shaker (Heidolph, Reax 2)
  • Ultrasonic Cleaner (Branson)
  • Muffler Furnace (Barnstead)
  • Centrifuge (Eppendorff, 5810)
  • Photometer (Hach)
lab equipment

Contact

Dr. Natascha Riedinger Associate ProfessorGeology DepartmentHBRC 330E405-744-3635natascha.riedinger@okstate.edu
 
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