Sampling of marine core

Last Update:
Tue, Jan 3, 2006
Core Analysis Flow-Chart
  1. Non-invasive measurements
    Non-invasive measurements of the core samples provide sequential digital data on sediment structure and physical properties prior to more detailed invasive analyses. The provisional data-set gives us general information from which the subsequent sampling strategy can be formulated.
  2. Sampling
    After the non-destructive measurements have been completed, each piston core is halved longitudinally using a core cutter or wire. One of the halves is called the working half which is sampled at certain depth intervals for further analysis, while the other half, called the archive half, is kept in the core repository in reserve.
  3. Analyses and measurements
    Individual samples taken from the working half of the cores are distributed to each laboratory (micropaleontology, physical property, sedimentology, paleomagnetism, organic chemistry, inorganic chemistry, and microbiology) for detailed observations, analyses or measurements.
  4. Storage
    The core repository is continuously monitored to avoid fluctuations in temperature and humidity, so that the archive halves are kept in good condition. For microbiological samples, supercold conditions are needed to prevent oxidation and chemical breakdown.

Sampling room