Red-blue seafloor maps to understand East Mediterranean tectonics
2022
Fernández-Blanco, David | Ranero, César R.
International Conference on Seafloor Forms, Processes and Evolution, 4-6 July 2022, Valletta, Malta
Show more [+] Less [-]The analysis of relief is fundamental for Earth Science discoveries: from seafloor spreading and plate tectonics to lithospheric mechanics and landscape evolution. However, interpretations of relief data based on (colored) hillshades may be biased, since this widely-used visualization method requires an arbitrary selection of lighting (direction and azimuth) that emphasizes and dims sub-sets of the features contained in the data. Here, we overcome lighting biases producing quantitative relief maps that blend relief concavity-convexity and slope in our novel red-blue relief visualization. We produce original red-blue relief maps of the East Mediterranean seafloor at tectonic scale using the EMODNet bathymetry, and profit from the increased observational power in unbiased structural interpretations. We compare colored hillshades and red-blue seafloor maps at different sites, including the Cyprus Arc, the Nile Delta offshore, the Anaximander Mountains, and the Mediterranean Ridge, where we discuss the newly found observational evidence in the context of the tectonic evolution of the East Mediterranean region at large
Show more [+] Less [-]Peer reviewed
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