Skip to main content

WG: Geomorphology and Polar Research

Profile

The working group “Geomorphology and Polar Research” (GEOPOLAR) focuses on geomorphology and polar research as well as on palaeoclimatic and palaeoenvironmental reconstruction based on the investigation of natural environmental archives such as lacustrine and aeolian sediment records.

Contact

Your way to GEOPOLAR: Offices of GEOPOLAR are located on the campus of the University of Bremen in the FVG building. Walk to this building by following the University Boulevard (central pedestrian area) until its western end. After descending the stairs the brick building straight ahead is the FVG building. The laboratory is located on the ground floor and offices are in the second floor of the central section of the FVG building (FVG-M).

GEOPOLAR, University of Bremen

Celsiusstr. FVG-M, D-28359 Bremen

Secretary: Britta Schülzke

Phone: +49-(0)421-218.67152

Email: britta.schuelzkeprotect me ?!uni-bremenprotect me ?!.de

Projects

Ongoing and completed research projects are listed under research in physical geography. Additionally, the research and expert information-system of the University of Bremen (FOREX) is a source of information.

Geomorphological and Sedimentological Laboratory

The geomorphological-sedimentological laboratory is equipped for field work to recover short and up to 20 m-long sediment cores from lakes and to monitor the particle flow in the lacustrine water column. Furthermore, the laboratory is designed for the non-destructive and continuous investigation of sediment cores with physical methods and to perform geochemical analyses with a high sample throughput, as it is necessary for studies of high-resolution sediment sequences from natural environmental archives. The following devices with high operational capacity are available:

  • Coring platform motorised with a long-shaft outboard engine and two different-sized rubber boats either with combustion or electric outboard engines
  • Field generator (220 V)
  • Surveying instruments including a differential Global Positioning System (dGPS)
  • Sediment echograph
  • Several gravity coring systems (diameter: 60 mm) to recover the sediment/water interface and surface sediments of up to 2.5 m in length
  • Niederreiter piston coring system to recover long sediment cores (diameters: 60/90 mm)
  • Hand-operated winch with a Ruttner water sampler
  • Multiparameter sonde to measure temperature, pH, electrical conductivity, oxygen content and redox potential
  • CTD (conductivity, temperature, depth) sonde with turbidity sensor
  • Computer-controlled sediment trap (Technicap PPS 4/3) for sequential collection of particle samples in the water column
  • Lake core repository, i.e. a walk-in cold room (+4°C) for the storage of sediment cores
  • Mechanic core splitter for precise core splitting of PVC-liners with up to 90 mm diameter
  • XRF core scanner (ITRAX, Cox Analytics) for major and trace element analysis including digital line-scanning and radiographic image capturing systems with a resolution of 200 µm
  • Scanning system for magnetic susceptibility using Bartington MS2E and MS2F point sensors; this scanning device can be equipped with a loop sensor (Bartington MS2C) for whole core measurements
  • Bartington MS2B sensor for frequency dependent determination of magnetic susceptibility
  • Equipment to shock freeze, freeze dry (LYOVAC GT2) and impregnate soft sediments
  • Petrographic (polarizing) microscopes and binoculars with conventional and digital image capturing systems
  • CNS elemental analyser (EURO-EA, HEKAtech with TOC-kit) for the determination of total carbon (TC) - after removal of carbonates also of total organic carbon (TOC) and total inorganic carbon (TIC), total nitrogen (TN) and total sulphur (TS)
  • Muffle furnace (NABERTHERM) to determine loss on ignition at various temperatures
  • Continuous flow system with UV-VIS spectrometry (SKALAR) for the determination of biogenic silica
  • Laser-granulometry (LS 200, BECKMAN-COULTER) for grain-size analyses ranging from 0.4-2000 µm
  • Sieving machine (RETSCH) for grain-size measurements ranging from 0.063-20 mm