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Tectonic Enigma: Deep Earth Terminology
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Layered texture in metamorphic rocks resembling leaf-like planes
  • 2. Mechanical fracturing process in brittle deformation zones
  • 3. Particles deposited by water, wind, or ice, precursor to rock
  • 5. Columnar jointing seen famously in basalt cliffs, resembling fences
  • 6. Massive igneous intrusion exposed over hundreds of square kilometers
  • 9. Foreign rock fragment enclosed within an intrusive igneous body
  • 13. Equilibrium of Earth's lithosphere on the asthenosphere’s buoyancy
Down
  • 4. Alkaline volcanic rock often linked to oceanic rift environments
  • 7. Fossilized single-celled organisms forming large carbonate lenses
  • 8. High-pressure metamorphic rock from subducted oceanic crust
  • 10. Fragments of ancient oceanic crust thrust onto continents
  • 11. Proterozoic supercontinent predating Pangea by over a billion years
  • 12. Large, saucer-shaped igneous intrusion typically of layered mafic rock

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