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Research
- Biogeochemistry and Geochemistry
- Paleoclimate: Lake Records and Landscape History
- Sedimentary Processes and Geophysical Imaging
People
Graduate Studies
Facilities
- R/V Blue Heron
- Geophysical Tools
- Inorganic Geochemistry Lab
- Organic and Stable Isotope Biogeochemistry Lab
- Physical Limnology Lab
- Sedimentology Lab and Sample Repository
Additional Information
- The Center for Freshwater Research and Policy's report: Fresh Water
- Lake Cam - view of the lake from campus
- Met Buoy - Meteorological Buoy near the Duluth city water intake
Organic and Stable Isotope Biogeochemistry Analytical Research Facility (OSI-BARF)
The biogeochemistry laboratories at LLO are focused on organic and stable isotopic analysis of natural samples. Currently the labs house UIC carbon and sulfur coulometers, a Lachat nutrient flow-injection autoanalyzer, uv/vis spectrophotometers, a Costech Elemental Analyzer, as well as Gas Chromatograph and GC/Mass Spectrometer systems for organic geochemical analyses (HP 6890 GC with FID and sulfur-specific FPD detectors and HP 6890/5973 GC/MS). The centerpiece of the stable isotope lab is a Finnigan Delta Plus XP isotope ratio monitoring mass spectrometer with multiple inlet devices for the analysis of light stable isotopes (C, H, O, N, S) in a diverse array of natural samples. The inlets include a Costech EA for bulk samples, HP 6890 GC for specific organic compounds, a GasBench II for carbonates and waters, and a dual inlet for anything else.