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Arcane Stratums of Earth’s Interior
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Adjective describing the rigid Earth’s outer shell traits
  • 2. Process where oceanic plate dives beneath continental
  • 3. Collective term for Earth’s structural layers
  • 4. Rigid shell where tectonic plates roam
  • 5. Molten iron ocean generating geomagnetic shield
  • 7. First crust’s composition rich in silica and aluminum
  • 9. Seismic boundary separating crust from mantle
  • 12. Frozen Earth’s domain, often overlooked by geologists
  • 15. Study of ancient supercontinental configurations
  • 18. Dynamic process shaping lithospheric architecture
  • 19. Yielding layer beneath the plate’s firm crust
Down
  • 6. Layer formation by density-driven segregation of elements
  • 8. Basaltic substratum underlying continental sial
  • 10. Intermediate mantle where rigidity resumes
  • 11. Solid iron heart, Earth's innermost core
  • 13. Protective magnetic bubble generated by the core
  • 14. Ultramafic rock indicative of upper mantle material
  • 16. Protrusion of crust poking into oceanic regions
  • 17. Descriptive of forces breaking through lithospheric boundaries
  • 20. Earth’s internal heat influencing mantle convection

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