This panoramic photo shows the El Gordo Anticline plunging in the subsurface towards the right of the image where, unseen, the El Gordo Diapir crops out. The El Gordo Anticline is part of the Coahuila fold and thrust belt, which is thought to have started to develop during the Late Cretaceous in an ancient foredeep basin (La Popa Basin).
Most of the hinge of this anticline has been eroded producing the current triangular facet-bearing scarps on both subvertical limbs of the fold. These facets have been produced in reddish sandstone packages interpreted as part of a deltaic system – the Cretaceous Muerto Formation.
The El Gordo Anticline is about 60 km to the northwest of Monterrey City, in the state of Nuevo Leon, Mexico.
