Abstract

Global distribution of the centroid of magnetic layer, Zo, was estimated from spectral analysis of aeromagnetic and marine magnetic anomalies using recently released new global digital magnetic anomaly data, World Digital Magnetic Anomaly Map (WDMAM) version 2.0. Zo distribution provides a comprehensive view of regional‐scale trends of lithospheric thickness; Zo is generally shallower in oceanic ridges and deeper older continents, which is consistent with previous works. Zo is closely related to reasonable average thermal regime, and its correspondence with tectonic regime indicates that Zo is useful to delineate regional crustal thermal structure. It is expected that Zo combined with multidisciplinary data should help to infer geophysical and geological information in less explored regions.

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