Palaeomagnetic study of a subaerial volcanic ridge (Sao Jorge Island, Azores) for the past 1.3 Myr: evidence for the CobbMountain Subchron, volcano flank instability and tectonomagmatic implications

• Published in: Geophysical Journal International
• Main Authors: Silva, P. F., Henry, B., Marques, F. O., Hildenbrand, A., Madureira, P., Mériaux, C. A., Kratinová, Z. (Zuzana)
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2012
• Subjects: palaeomagnetic secular variation; magnetostratigraphy; rock and mineral magnetism; Atlantic Ocean; Jorge Island; Tilting; North Atlantic
• Online Access: https://doi.org/10.1111/j.1365-246X.2011.05320.x; http://hdl.handle.net/11104/0212140

We present a palaeomagnetic study on 38 lava flows and 20 dykes encompassing the past 1.3 Myr on S. Jorge Island (Azores Archipelago—North Atlantic Ocean). The sections sampled in the southeastern and central/western parts of the island record reversed and normal polarities, respectively. They indic...