| Abstract: | Spatial and temporal variations in sedimentation rate and the formation of cyclic and event types of stratification have been identified by the correlation of sedimentation units between sediment cores, which were sampled on the same day during different seasons and years, as well as before and after specific events. Some results are presented from a number of selected areas along the coast of Sweden. The cores were collected in rectangular, transparent coring tubes which were subsequently X-rayed (the uppermost part in stereo) before the cores were extruded from the tubes. The optical data obtained from the radiographic images were then quantified by the use of X-ray densitometric methods. The use of X-ray radiographic techniques, especially stereo-radiography and X-ray densitometry, simplifies the core-to-core correlation as well as the determination of sedimentary properties and the quantification of sedimentation rates. |
