Periglacial Research: Laboratories & Field Equipment

Samoylov Station, Lena Delta, Eastern Siberia

Contact: Hans-Wolfgang Hubberten

Field Equipment

• GPS (Global Positioning System), normal and differential

• rubber boats and 5-30 HP engines

• working platform (2.7 x 3.7 m), with inflatable rubber pontoons or runners for   lake sediment coring

• gravity and hand-push corers for sampling of near-surface lake sediments (down to 1.5 m)

• piston corer for sampling of deep lake sediments (down to 23 m)

• WTW instruments for in situ measurements of pH, Eh, dissolved oxygen, conductivity/salinity, and temperature in the water column down to 100 m

• multi-recorder ELBAGU for in situ measurements of pH, Eh, dissolved oxygen, conductivity/salinity, and temperature in the water column including data logger

• water samplers, plankton nets, sediment traps

• echosounder

• portable ion chromatograph for field measurement of cations and anions

• DR/2000 Spectrophotometer (HCAH)

• Subbottom Acoustic Profiling System (3.5 kHz)

Contact: Hans-Wolfgang Hubberten

Sediment Laboratory

• sample preparation (freeze-drying, grinding, splitting)

• grain-size analyses (dry and wet sieving, settling tubes)

• Laser-Particle-Sizer, SediGraph

• Organic Element Analysis (Corg, Carbonate, N, S)

• microscopy (binoculars and polarization microscopes in Potsdam, SEM in Bremerhaven)

• clay mineralogy (preparation of texturally oriented aggregates in Potsdam, XRD measurement in Bremerhaven)

• physical properties (water content, susceptibility of sediment subsamples in Potsdam, whole-core measurements of susceptibility, density, and Vp velocities in Bremerhaven)

• Avatec XRF/Colour Core Scanner (Bremerhaven)

Contact: Bernhard Diekmann

Geochemistry Laboratory

• ICP-OES (Perkin Elmer)

• GF-AAS (Perkin Elmer)

• Ion-Chromatograph (Dionex)

Contact: Bernhard Diekmann

Stable-Isotope Laboratory

• carbon and nitrogen isotopes in organic matter (automated preparation device)

• carbon and oxygen isotopes in carbonates (manual preparation device)

• carbon, nitrogen, and oxygen isotopes in gas samples (automatic multi sample port)

• hydrogen and oxygen isotopes in water samples (automated preparation device)

• oxygen isotopes in silicates (planned)

Contact: Hanno Meyer

Micropalaeontology Laboratory

• pollen preparation techniques

• diatom preparation techniques

• microscopy of diatoms, pollen, palynomorphs, charcoals, and other terrestrial micro remains

• Zeiss Axioplan microscopes (DIC, phase contrast, microphotography)

Contact: Ulrike Herzschuh

Microbiology Laboratory

• autoclave

• clean bench

• glove box

• gas chromatograph (methane, carbon dioxide, oxygen, nitrogen)

• anaerobic culture technique (Hungate)

• low temperature experiments (psychrophilic microorganisms)

• fluorescence in situ hybridisation (FISH)

Contact: Dirk Wagner

Geophysical Instruments

• Gravity Meter LaCoste&Romberg Model G

• "Chirp" sediment echosounder for sub-bottom profiling (together with AWI Bremerhaven)

• RAMAC Georadar (together with AWI Bremerhaven)

Contact: Diedrich Fritzsche & Conrad Kopsch