Image processing techniques to improve characterization of composite ichnofabrics. Issue 3 (2nd July 2020)

• Record Type: Journal Article
• Authors: Rodríguez-Tovar, F. J.; Miguez-Salas, O.; Dorador, J.
• Is Part Of: Ichnos. Volume 27:Issue 3(2020)
• Page Start: 258
• Page End: 267
• Publication Date: 2020-07-02
• Subjects: Composite ichnofabrics -- image treatment -- Fiji and ICY -- core and outcrops; Ichnology -- Periodicals; Trace fossils -- Periodicals; 560.5
• DOI: 10.1080/10420940.2020.1744579
• Languages: English
• ISSNs: 1042-0940

Abstract

Abstract: Image processing techniques, including the Analyze Particles tool offered by Fiji software and the Intensity Profile by ICY (IP-ICY), were applied in core and outcrop examples to improve characterization of autocomposite ichnofabrics. Analyze Particles gives information about particle shape and size in the studied image. This tool was applied to Chondrites assemblages in composite ichnofabrics in view of selected images of modern marine hemipelagic cores from Site U1385 of IODP Expedition 339. Differences in size, relative abundance, density and distribution of Chondrites were interpreted as related to variations within the population of Chondrites tracemakers. Intensity Profile quantifies pixel values of the infilling material of traces, proving helpful to discriminate between specimens, evaluate the horizon of colonization, and approach the penetration depth. Its application to the analysis of Zoophycos improves characterization of composite ichnofabrics from deep-sea pelagic calcilutites of the Petra Tou Romiou section (Eocene Lefkara Formation; southern Cyprus). Some suites of Zoophycos were interpreted as associated with different phases of colonization from several horizons. Moreover, it was possible to discriminate structures pertaining to different specimens, as opposed to those from the same specimen.