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首页> 外文期刊>Geophysical Research Letters >Structural Variability Within the Kane Oceanic Core Complex From Full Waveform Inversion and Reverse Time Migration of Streamer Data
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Structural Variability Within the Kane Oceanic Core Complex From Full Waveform Inversion and Reverse Time Migration of Streamer Data

机译：来自全波形反演的凯恩海洋核心复合体内的结构变异，反向时间迁移拖缆数据

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摘要

The origin and distribution of the gabbroic bodies provide crucial information to understand the formation and evolution processes of the oceanic core complexes (OCCs). Nevertheless, images of the shape of the gabbroic bodies across the domes and gabbroic intrusion into the mantle have remained elusive. High-resolution acoustic early-arrival full waveform inversion tomography models obtained along and across the Kane OCC characterize the detailed lateral variability in structure and composition of the upper similar to 2 km of this well-developed OCC. Reverse time migration images show the gabbroic plutons embedded in mantle rocks are seismically transparent, while more reflective sections correspond to the layered magmatic crust. Lithological interpretation shows heterogeneous distribution of gabbroic bodies within the Kane OCC, indicating strong spatial and temporal variability in magmatism during fault exhumation. Our results will also be of high value for future scientific ocean drilling efforts in the area.
机译：Gabbroice身体的起源和分布提供了了解海洋核心复合物（OCC）的形成和演化过程的重要信息。然而，圆顶和古典侵入地幔的古古代身体形状的形状仍然难以捉摸。高分辨率声学早期到达全波形反转断层扫描模型沿和跨越Kane OCC的结构，其结构和组成的详细横向变异性，类似于这件良好的OCC的2公里。相反时间迁移图像显示嵌入在地幔岩中的古桥型浮子是地震透明的，而更多的反射部分对应于层状岩石地壳。岩性解释显示了凯恩OCC内的虎斑体的异质分布，表明在故障挖掘期间岩浆中的岩浆中的强空间和时间变异性。我们的结果对该地区未来的科学钻井努力也有高价值。

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