Central Afar is shaped by the interaction between the Red Sea (RS) and Gulf of Aden (GoA) rifts. While there have been several studies conducted in the region, we know surprisingly little about the mechanism of connection between these two rift branches. Here we use high‐resolution 3D lithospheric scale geodynamic modeling to capture the evolution of linkage between the RS and GoA rifts in central Afar. Our results demonstrate that the two rifts initially overlap and interact across a broad zone of faulting and vertical axis block rotation. However, through time, rift overlap is abandoned in favor of direct linkage which generates a series of localized en‐echelon basins. The present‐day direct linkage between the two rifts is supported by geodetic observations. Our study reconciles previously proposed models for the RS and GoA rift connection by considering spatial and temporal evolution of the rifts

To Rotate or to Link? The Connection Between the Red Sea and Gulf of Aden Rifts in Central Afar

La Rosa A.;Corti G.
2024

Abstract

Central Afar is shaped by the interaction between the Red Sea (RS) and Gulf of Aden (GoA) rifts. While there have been several studies conducted in the region, we know surprisingly little about the mechanism of connection between these two rift branches. Here we use high‐resolution 3D lithospheric scale geodynamic modeling to capture the evolution of linkage between the RS and GoA rifts in central Afar. Our results demonstrate that the two rifts initially overlap and interact across a broad zone of faulting and vertical axis block rotation. However, through time, rift overlap is abandoned in favor of direct linkage which generates a series of localized en‐echelon basins. The present‐day direct linkage between the two rifts is supported by geodetic observations. Our study reconciles previously proposed models for the RS and GoA rift connection by considering spatial and temporal evolution of the rifts
2024
Istituto di Geoscienze e Georisorse - IGG - Sede Secondaria Firenze
continental rifting, rift linkage, afar
File in questo prodotto:
File Dimensione Formato  
Muluneh et al 2024 Geophysical Research Letters Rotate or link.pdf

accesso aperto

Descrizione: MULUNEH A., KEIR D., BRUNE S., NEUHARTH D., PAGLI C., CORTI G. To Rotate or to Link? The Connection Between the Red Sea and Gulf of Aden Rifts in Central Afar. Geophysical Research Letters - 2024
Tipologia: Versione Editoriale (PDF)
Licenza: Creative commons
Dimensione 6.98 MB
Formato Adobe PDF
6.98 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/511312
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
social impact