caa a22 4500 606150072 CHVBK 20210128100537.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s00531-015-1150-x doi (NATIONALLICENCE)springer-10.1007/s00531-015-1150-x Characterization of submarine canyon bathymetries in northern Ionian Sea, Italy, using sediment geochemical variation induced by transportation distance and basin depth [Elektronische Daten] [Perri Francesco, Ohta Tohru, Critelli Salvatore] Geochemical data of marine mud sediments collected from the Esaro, Neto and Corigliano canyons in the northern Ionian Sea (southern Italy) were investigated in order to characterize canyon bathymetry types. Mud sample compositions analyzed by the principal component analysis (PCA) provided useful information for the morphology of the depositional area of the northern Ionian Sea. The use of sediment geochemical data as well as transportation distance and depth as input variables for PCA enabled the extraction of following latent variables: basin depth (PC1), sedimentation rate (PC2) and transportation distance (PC3). Based on these results, we further developed geochemical indices that can estimate basin depth (F1), sedimentation rate (F2) and transportation distance (F3); these functions can be solely calculated from the elemental concentration data of the mud samples. Since these F1, F2 and F3 functions are mathematically independent variables, they facilitate more precise characterization of individual canyon types. That is, the Esaro Canyon is regarded as a sediment-starved deep canyon characterized by a single source area; the Neto Canyon can be seen as a deeply sloped submarine apron system and sediments are mainly supplied by the sediment gravity flows; the Corigliano Canyon is characterized by multiple sources and moderately sloped system, whose sediments disperse mainly by traction currents. These interpretations are concordant with the basin bathymetry of the studied area. Therefore, F1, F2 and F3 functions might be applicable to any oceanic basins. Springer-Verlag Berlin Heidelberg, 2015 Marine mud nationallicence Ionian Sea nationallicence Geochemistry nationallicence Transportation distance nationallicence Basin bathymetry nationallicence Principal component analysis nationallicence Francesco Perri Dipartimento di Biologia, Ecologia e Scienze della Terra, Università degli Studi della Calabria, Via P. Bucci, 87036, Arcavacata di Rende, CS, Italy aut Tohru Ohta Department of Earth Sciences, Faculty of Education and Integrated Arts and Sciences, Waseda University, 1-6-1, Nishiwaseda, Shinjuku-ku, 169-8050, Tokyo, Japan aut Salvatore Critelli Dipartimento di Biologia, Ecologia e Scienze della Terra, Università degli Studi della Calabria, Via P. Bucci, 87036, Arcavacata di Rende, CS, Italy aut International Journal of Earth Sciences Springer Berlin Heidelberg 104/5(2015-07-01), 1353-1364 1437-3254 104:5<1353 2015 104 531 https://doi.org/10.1007/s00531-015-1150-x text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00531-015-1150-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Francesco Perri Dipartimento di Biologia, Ecologia e Scienze della Terra, Università degli Studi della Calabria, Via P. Bucci, 87036, Arcavacata di Rende, CS, Italy aut NATIONALLICENCE 700 1- Tohru Ohta Department of Earth Sciences, Faculty of Education and Integrated Arts and Sciences, Waseda University, 1-6-1, Nishiwaseda, Shinjuku-ku, 169-8050, Tokyo, Japan aut NATIONALLICENCE 700 1- Salvatore Critelli Dipartimento di Biologia, Ecologia e Scienze della Terra, Università degli Studi della Calabria, Via P. Bucci, 87036, Arcavacata di Rende, CS, Italy aut NATIONALLICENCE 773 0- International Journal of Earth Sciences Springer Berlin Heidelberg 104/5(2015-07-01), 1353-1364 1437-3254 104:5<1353 2015 104 531