A novel application of digital image treatment by quantitative pixel analysis to trace fossil research in marine cores

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doi: 10.2110/palo.2014.044
Author(s): Dorador, Javier; Rodríguez-Tovar, Francisco J.
Author Affiliation(s): Primary:
Universidad de Granada, Departamento de Estratigrafía y Paleontología, Granada, Spain
Volume Title: Palaios
Source: Palaios, 29(10), p.533-538. Publisher: Society for Sedimentary Geology, Tulsa, OK, United States. ISSN: 0883-1351
Note: In English. 27 refs.; illus., incl. 1 table
Summary: Ichnological analysis in cores has grown substantially in the past two decades because of its importance in fields such as paleoecology, biostratigraphy, or reservoir characterization. Yet core analysis entails some added difficulties in comparison to ichnological outcrop study, especially in modern marine sediments. Quantitative pixel analysis conducted on high-resolution images is used to facilitate the study of bioturbation in marine cores from site U1385 of IODP Expedition 339 in the Gulf of Cadiz. Lateral and vertical variation of pixel values obtained from the infilling trace fossils and from the host sediment are revealed to be highly useful to: (1) differentiate between trace fossils and biodeformational structures, including the host sediment; (2) discriminate between ichnotaxa (i.e., Palaeophycus vs. Planolites); (3) differentiate between passively and actively infilled structures (e.g., Thalassinoides vs. Planolites), and (4) characterize the horizon of bioturbation and thus evaluate the depth of penetration of particular tracemakers.
Year of Publication: 2014
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 10 Paleontology, Invertebrate; Atlantic Ocean; Biogenic structures; Bioturbation; Burrows; Cores; Expedition 339; Gulf of Cadiz; IODP Site U1385; Ichnofossils; Image analysis; Integrated Ocean Drilling Program; Invertebrata; Marine environment; Marine sediments; North Atlantic; Quantitative analysis; Sedimentary structures; Sediments
Coordinates: N373417 N373417 W0100719 W0100720
Record ID: 2015007620
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