Application of image-based granulometry to siliceous and calcareous estuarine and marine sediments

Grain-size analysis has long been used as a descriptor of transport and depositional processes. This paper presents the possibility of using image-based granulometries, not yet widely used in the earth sciences, to characterize granulometric composition of unconsolidated estuarine and marine sedimen...

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Bibliographic Details
Published in:Estuarine, coastal and shelf science coastal and shelf science, 2003-10, Vol.58 (2), p.227-239
Main Authors: Frančišković-Bilinski, Stanislav, Bilinski, Halka, Vdović, Neda, Balagurunathan, Yoganand, Dougherty, Edward R
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Biological and medical sciences
calcareous sediments
digital image processing
Fundamental and applied biological sciences. Psychology
General aspects. Techniques
grain size characteristics
granulometries
Marine
Methods and techniques (sampling, tagging, trapping, modelling...)
siliceous sediments
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Summary:Grain-size analysis has long been used as a descriptor of transport and depositional processes. This paper presents the possibility of using image-based granulometries, not yet widely used in the earth sciences, to characterize granulometric composition of unconsolidated estuarine and marine sediments. To test the method, conventional sediment analysis of siliceous and calcareous sediments are compared to image-based analysis of sediments obtained along the Öre estuary (Northern Sweden) and the Adriatic Sea (Croatia and Italy). These grains have different textural characteristics, composition, roundness and specific surface area. Granulometric parameters are calculated using both a graphical method and the mathematical method of moments. Grains have been imaged using a microscope and mathematical granulometries have been applied to the digital data. Image-based granulometric moment descriptors are compared with sieve + Coulter counter-derived moments. Although it is not claimed that digital-imaging should be the only method used in sedimentology, the results show the potential of applying digital electronic imaging to granulometric analysis of sediments. In this way, sampling for granulometric analysis and sieving processes combined with Coulter counter analysis of fraction
ISSN:0272-7714
1096-0015
DOI:10.1016/S0272-7714(03)00074-X