- Marine Sedimentology
- Laboratories
Laboratories - Facilities & Infrastructure
We are responsible for the organisation, maintainance and time scheduling of laboratories and facilities listed below. In case, you need further information, do not hesitate to contact the responsible person.
Wet Sieving Lab (1370)
Information
The lab is equipped with two washbasins prepared for wet sieving, sieves of different mesh sizes (63µm to 2mm), a drying oven, an ultrasonic bath (Bandelin Sonorex), and a special accuracy weighing machine (tolerance: 0.005 g).
Contact Person
| Christina Gnade | [Bitte aktivieren Sie Javascript] | 0421-218-65654 |
Grain Size Lab (1390)
Technical data
The lab is equipped with a laser diffraction particle size analyzer, type LS 13 320 of the Beckman Coulter company. The laser itself is equipped with an Aquous Liquid Module and an Auto Prep Station, and determines particle grain sizes from 0.04 to 2000 µm grouped into 116 size classes.
Contact Person
| Dr. Jürgen Titschack | [Bitte aktivieren Sie Javascript] | 0421-218-65623 |
Stone Saw
Technical Data
| Type | TS100F - Husqvarna |
| Blade | 900mm / 1000mm |
| Bore of the blade | 60mm |
| Depth of cutting | 310mm / 360mm |
| Net weight | 324kg |
| Dimensions | 1950mm x 970mm x 1700mm |
| Power / Voltage | 12CV / 9kW / 400V (3phases) |
| Extras | special table modification for GeoB sediment cores (section length: 1000mm, core diameter: 120mm) |
Contact Person
| Dr. Claudia Wienberg | [Bitte aktivieren Sie Javascript] | 0421-218-65652 |
| Daniel Hüttich | [Bitte aktivieren Sie Javascript] | 0421-218-65630 |
Own Experience
Our working group uses the saw to open sediment cores containing a high content of cold-water coral fragments. A special procedure is needed to avoid any disturbance of the hard coral fragment/soft sediment mixture. Before opening, the cores are frozen at -20°C for 24 hours. The core sections (length: 1m) are cutted lengthwise into two halves (archive and work halves). The surface of the core halves is rinsed with clean water to remove any cutting remnants. Afterwards, the cores need again 24 hours for defreezing before they can be further described and sub-sampled.
a. Stone saw on board R/V MARIA S. MERIAN. b. Opening of the frozen gravity cores. c. Opened coral-bearing core (white spots are coral fragments).