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How Does Magma Affect Land Features?

How Does Magma Affect Land Features?. D35. Underground magma can cool and harden in many shapes and forms before it reaches the surface. Dike: hardens in vertical cracks Sill: hardens between horizontal layers of rock (flat)

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How Does Magma Affect Land Features?

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  1. How Does Magma Affect Land Features? D35

  2. Underground magma can cool and harden in many shapes and forms before it reaches the surface

  3. Dike: hardens in vertical cracks • Sill: hardens between horizontal layers of rock (flat) • Laccolith: Magma pushes into a sill to form a pocket, pushes rock layers up into dome mountains.

  4. Dome mountains:broad, circular mountains formed from uplifted rock layers (Black Hills of South Dakota) • Batholiths: largest and deepest underground formation- if above sea level it looks like large steep hills

  5. Dome Mountain

  6. What feature is this? • Dome mountain

  7. Batholith

  8. Dike formation

  9. A sill

  10. Laccolith

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