Magnetic characterization of the zigzag shaped J‐anomaly: Implications for kinematics and breakup processes at the Iberia–Newfoundland margins

Lithospheric breakup is generally defined as the process that results in a new plate boundary and oceanic crust. However, how this process occurs in magma‐poor systems remains debated. As recently suggested, the J‐magnetic anomaly at the Iberia–Newfoundland margins has polygenic sources and therefore cannot be interpreted as an isochron. However, the presence of the J‐anomaly on both margins suggests a common origin. By using analytic signal map...