The CT technique is unique because it provides a non-destructive evaluation of sedimentary rocks. The absorption of X-radiation, emitted by a high-voltage generator, depends on the bulk density and atomic weight of the substance. The lower the density of the material, the more transparent it is to X-rays. If the emitted energy is constant, the absorption depends only on the density of the substance, which is represented by different Hounsfield Units. In case study No. 1, a pelitic core sample of an ox-bow lake environment was analyzed. The mathematical-statistical estimates and significant time-series model (ARIMA) proved that the data coming from the CT images show the presence of micro-cycles. The applied method proved the influence of seasonal floods on local sedimentation. In case study No. 2, the data represent a younger and an older Bouma sequence. The macroscopic study suggests that there are two C units in the core, because an erosional surface is clearly identifiable between the older and the younger units. This case study shows the necessity of precise sedimentological knowledge in addition to that of mathematical-statistical methods and software, and that an accurate macroscopic study is essential and never replaceable. Also, it should be kept in mind that it is often reasonable to replace the conventional statistical conception with a geostatistical approach. The aim of this study was to demonstrate a “non-traditional” strategy in sedimentology and the interpretation thereof.
Balogh, K., B. Molnár, M. Szónoky 1968: Research report to the OKGT (former Hungarian Oil and Gas Company). - Department of Geology and Paleontology, University of Szeged, 477 p.
Boggs, S., Jr., 1987: Principles of sedimentology and stratigraphy. - MacMillan Publishing Co., New York, 304 p.
Principles of sedimentology and stratigraphy, () 304.
Principles of sedimentology and stratigraphy304)| false
Sümegi, P., J. Geiger, E. Magyar, T. Földes, P. Bogner, Gy. Gyurica, L. Hum 2002: Sedimentological and paleontological analysis of a Holocene yazoo-type river of the Upper-Tisza Region. - Poster presentation at the I. Congress of Geomorphology, Hungary.
Schwarzacher, W., 1975: Sedimentation models and quantitative stratigraphy. - Developments in sedimentology, No. 19, Elsevier Pub. Co., Amsterdam, 382 p.
Sedimentation models and quantitative stratigraphy, () 382.
Sedimentation models and quantitative stratigraphy382)| false