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Kinematics Of Orocline Tightening In The Core Of An Arc: Paleomagnetic Analysis Of The Ponga Unit, Cantabrian Arc, Northern Spain, Arlo Brandon Weil
Kinematics Of Orocline Tightening In The Core Of An Arc: Paleomagnetic Analysis Of The Ponga Unit, Cantabrian Arc, Northern Spain, Arlo Brandon Weil
Geology Faculty Research and Scholarship
Paleomagnetic and structural analyses of the Western European Variscan Belt (WEVB) suggest that the most viable kinematic model for Variscan deformation in northern Iberia is oroclinal bending of an originally linear belt in a two-stage tectonic history. This history represents two regional compression phases (E-W in the Late Carboniferous and N-S in the Permian, both in present-day coordinates), which resulted in the refolding (about steeply plunging axes) of initially north-south trending thrusts and folds in the hinge zone, and oroclinal tightening due to vertical axis rotation of the belt's limbs. However, the orocline model has yet to be critically tested …