Global Centroid Distribution of Magnetized Layer From World Digital Magnetic Anomaly Map
Global Centroid Distribution of Magnetized Layer From World Digital Magnetic Anomaly Map
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DOI：
10.1002/2017tc004770
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发表时间：
2017-12
期刊：
影响因子：
4.2
通讯作者：
A. Tanaka
中科院分区：
文献类型：
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作者：
A. Tanaka
利用最近发布的新的全球数字磁异常数据，世界数字磁异常图（WDMAM）2.0版，通过对航磁和海洋磁异常的频谱分析，估计了磁层质心Zo的全球分布。Zo分布提供了岩石圈厚度的区域尺度趋势的全面视图; Zo通常在洋脊和更深的古老大陆中较浅，这与以前的工作一致。Zo与合理的平均热体制密切相关，与构造体制的对应表明Zo对区域地壳热结构的划分是有用的。预计Zo与多学科数据相结合，将有助于推断勘探较少地区的地球物理和地质信息。
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.