The crustal and tectonic structure of the Red Sea and especially the maximum northward extent of the (ultra)slow Red Sea spreading centre has been debated-mainly due to a lack of detailed data. Here, we use a compilation of earthquake and vertical gravity gradient data together with high-resolution bathymetry to show that ocean spreading is occurring throughout the entire basin and is similar in style to that at other (ultra)slow spreading mid-ocean ridges globally, with only one first-order offset along the axis. Off-axis traces of axial volcanic highs, typical features of (ultra)slow-spreading ridges, are clearly visible in gravity data although buried under thick salt and sediments. This allows us to define a minimum off-axis extent of oceanic crust of
|Original language||English (US)|
|State||Published - Apr 24 2021|
Bibliographical noteKAUST Repository Item: Exported on 2021-04-27
Acknowledgements: The authors thank Jérôme Dyment (IPGP), Philip Ball (then Saudi Aramco) and Christian Heine (Shell) for rewarding discussions and their honest opinions during the 2017 EGU conference in Vienna and when visiting GEOMAR Kiel. This manuscript is an outcome of the GEOMAR MuHS-V writing retreats in Osten, Germany, February 21–23, 2018 and Hinter Wangern, Poel Island, Germany, November 04–08, 2019.
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Physics and Astronomy(all)