The Sidi Ifni transect across the rifted margin of Morocco (Central Atlantic)

The Sidi Ifni transect across the rifted margin of Morocco (Central Atlantic): Vertical movements constrained by low-temperature thermochronology

Charton, R.J.G. (TU Delft Applied Geology; NARG (North Africa Research Group))
Bertotti, G. (TU Delft Applied Geology; NARG (North Africa Research Group))
Arantegui, Angel (The University of Manchester; NARG (North Africa Research Group))
Bulot, Luc (Centre Saint Charles; NARG (North Africa Research Group))

2018-05-01

The occurrence of km-scale exhumations during syn- and post-rift stages has been documented along Atlantic continental margins, which are also characterised by basins undergoing substantial subsidence. The relationship between the exhuming and subsiding domains is poorly understood. In this study, we reconstruct the evolution of a 50 km long transect across the Moroccan rifted margin from the western Anti-Atlas to the Atlantic basin offshore the city of Sidi Ifni. Low-temperature thermochronology data from the Sidi Ifni area document a ca. 8 km exhumation between the Permian and the Early/Middle Jurassic. The related erosion fed sediments to the subsiding Mesozoic basin to the NW. Basement rocks along the transect were subsequently buried by 1–2 km between the Late Jurassic and the Early Cretaceous. From late Early/Late Cretaceous onwards, rocks present along the transect were exhumed to their present-day position.

Central Atlantic
Morocco
Sidi Ifni transect
Vertical movements

http://resolver.tudelft.nl/uuid:57ce34a4-df11-4aa4-9535-8ad60fada7d4

https://doi.org/10.1016/j.jafrearsci.2018.01.006

2020-02-22

1464-343X

Journal of African Earth Sciences, 141, 22-32

Institutional Repository

journal article

© 2018 R.J.G. Charton, G. Bertotti, Angel Arantegui, Luc Bulot