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April 10, 2026Journal of Geophysical Research Solid Earth

Dense Array Imaging of the Upper Crust at Bayan Obo Region: Implications for Deep‐Seated Faults and Mineralization

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Authors

CYChen YangYCYunfeng ChenXMXiaoling Meng

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Overview

Seismic imaging reveals subsurface fault zones in the Bayan Obo area, suggesting mineralization pathways.

Key Points

  • This research aims to elucidate the subsurface fault structures and their implications for mineralization in the Bayan Obo region.
  • Utilized 158 short-period seismic stations for data collection
  • Applied ambient noise tomography for upper crustal imaging
  • Developed a 3D shear-wave velocity model
  • Analyzed subsurface structures at depths exceeding 3.5 km
  • Identified a north-south dichotomy in velocity structure at deeper levels
  • Delineated a fault boundary that diverges from high-velocity rock structures
  • Proposed the fault system as potential pathways for fluid migration
  • Linked the fault geometry to historical tectonic events

Cite This Study

Yang et al. (2026) studied this question.

synapsesocial.com/papers/69d895d86c1944d70ce06fc8https://doi.org/10.1029/2025jb033432
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