Sedimentology

  • Sample preparation (freeze-drying, grinding, splitting)
  • Grain-size analyses (2x ATM Sonic Sifter, 2x Gil Sonic for dry and wet sieving, settling tubes)
  • Laser-Particle-Sizer (Malvern Mastersizer 3000, LS Coulter 200), 
  • Element analysis (organic carbon, inorganic carbon, nitrogen)
  • Microscopy: binoculars and polarization microscopes
  • Clay mineralogy

Head

Lutz Schirrmeister

Technical Staff

Dyke Scheidemann

 

 

 

 

Geochemistry

Head

Paul Overduin

Technical Staff

Antje Eulenburg

Stable Isotopes

Head

Hanno Meyer

Technical Staff

Lutz Schönicke

Micropaleontology & Paleogenetics

Sampling of a frozen fragment of a sediment core for old DNA (Photo: Heike Zimmermann)

Morphological and genetic analyses of organismic remains from terrestrial plants (e.g. pollen) or aquatic taxa (e.g. diatoms, chironomids, cladocerans) facilitate the investigation of spatial and temporal changes in Arctic ecosystems. The laboratories for micropaleontology, genetics and paleogenetics are specialized to either analyze organismic material or recent and ancient environmental DNA from lake sediments archives or permafrost deposits.

 

Micropaleontology laboratory

  • Extraction of pollen, diatom valves and other microfossils
  • Microscopy (Zeiss Axio, Zeiss Axiovert microscope with manipulator)

Genetic laboratory

  • DNA Isolation of different material (Fast-Prep®-24 Instrument)
  • Metabarcoding and preparation for Illumina sequencing (End-point PCR Cycler, qPCR)
  • Preparation for genome sequencing (Covaris M220 Focused-ultrasonicator™, 4200 TapeStation)
  • Microsatellite analyses
  • Cloning (laboratories with security level S1)

Paleogenetic laboratory

  • Separated from the genetic laboratories (separate building)
  • High degree of purity (UV ceiling lights, separation in pre- and main room)
  • Isolation of ancient DNA from environmental samples (e.g. lake sediment, permafrost)