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Lateral heterogeneity in the Earth's mantle
1Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02173, USA.
Seismic wave analysis reveals mantle inhomogeneities beneath the Bonin Island Arc. These findings highlight complex geological structures within the Earth's mantle.
Area of Science:
- Geophysics
- Seismology
- Earth Science
Background:
- Seismic wave propagation is influenced by variations in Earth's internal structure.
- Understanding mantle heterogeneities is crucial for plate tectonics and geodynamic models.
Purpose of the Study:
- To investigate the presence of lateral inhomogeneities in the Earth's mantle.
- To analyze seismic wave characteristics recorded at a specific seismic array.
Main Methods:
- Analysis of seismic wave data.
- Utilizing the Large Aperture Seismic Array (LASA) in Montana.
Main Results:
- Observed seismic wave characteristics indicate variations in mantle properties.
- Specific anomalies were detected beneath the Bonin Island Arc.
Conclusions:
- The Earth's mantle, particularly beneath the Bonin Island Arc, exhibits significant lateral inhomogeneities.
- These findings contribute to a better understanding of mantle dynamics and seismic wave behavior.
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