The enigmatic curvature of Central Iberia and its puzzling kinematics

Abstract

The collision between Gondwana and Laurussia that formed the latest supercontinent, Pangea, occurred during Devonian to Early Permian times and resulted in large-scale orogeny that today transects Europe, northwest Africa and eastern North America. This orogen is characterized by an 'S' shape corrugated geometry in Iberia. The northern curve of the corrugation is the well known and studied Cantabrian (or Ibero-Armorican) Orocline and is convex to the east and towards the hinterland. Largely ignored for decades, the geometry and kinematics of the southern curvature, known as the Central Iberian curve, are still ambiguous and hotly debated. Despite the paucity of data, the enigmatic Central Iberian curvature has

Characterizing the Source of the Eastern Galicia Magnetic Anomaly (NW Spain): The Role of Extension in the Origin of Magnetization at the Central Iberian Arc

“…Extensional detachments probably exist in all these thermal domes, buried at depth as in the Sanabria Dome or hidden by the massive intrusion of late‐orogenic, undeformed granites. If these anomalies, all located in the NW Iberian Massif, also imply the existence of a Kiaman remagnetization, the age of the closure of the CIA or even its existence, cannot be established by paleomagnetic techniques alone (Pastor‐Galán et al., 2020), as magnetic remanence is probably syn‐to‐post arc.…”