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Tag: Oceanic crust

Global Moho depth

Global maps of the Mohorovičić discontinuity, i.e., the Moho depth, across the Earth based on ESA’s satellite observations and the project GEMMA.

Global maps of the Mohorovičić (Moho) discontinuity across the Earth based on observations by ESA’s GOCE gravity satellite and the GEMMA project. While the Moho depth is relatively constant below sea floor, it varies by more than 70 km below continental plates. The Moho is the boundary between the Earth’s crust and its mantle. It is defined by an abrupt density variation of rock causing a change in velocity of seismic waves as they pass through the discontinuity. The Scientific colour map ‘tokyo‘ is used to represent the Moho depth data accurately and to all readers.

  • Alternative map projections
  • Transparent background
  • Light & dark background versions
  • Perceptually uniform
  • Colour-vision deficiency friendly
  • Readable in black&white
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Oceanic plate age (poster)

Visually accessible global map for poster print of oceanic plate age designed for color-blind readers.

Visually accessible global maps of oceanic plate age designed for color-blind readers. Highlighted are subduction zones (wide black lines) and other plate boundaries (thin black lines). Ages of the oceanic crust range from 0 (depicted in light colours) to approximately 200 Million years (depicted in dark colours), illustrating the dynamic process of ongoing plate motion and recycling through ocean-plate tectonics. This comprehensive representation is based on global seafloor age data from Müller et al. (1997), visualised on a custom Interrupted Mollweide map projection developed by Crameri et al. (2020a), with a specific focus on the world’s oceans. The ‘batlow‘ Scientific color map ensures accurate data representation and inclusivity for all readers.

  • Creator: Fabio Crameri
  • This version: 19.11.2023
  • License: Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
  • Specific citation: This graphic by Fabio Crameri using data from Müller et al. (1997) is available via the open-access s-ink.org repository.
  • Related references:
    Müller, R. D., et al. (1997). “Digital isochrons of the world’s ocean floor.” J. Geophys. Res. 102(B2): 3211-3214.
    Crameri, F., V. Magni, M. Domeier, G.E. Shephard, K. Chotalia, G. Cooper, C. Eakin, A.G. Grima, D. Gürer, A. Király, E. Mulyukova, K. Peters, B. Robert, and M. Thielmann (2020a), A transdisciplinary and community-driven database to unravel subduction zone initiation, Nature Communications, 11, 3750. doi:10.1038/s41467-020-17522-9
  • Printable version in CMYK and vector format
  • Suitable for light & dark backgrounds
  • Perceptually uniform colour map
  • Colour-vision deficiency friendly
  • Readable in black&white
Download

Faulty or missing link? – Please report them via a reply below!

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