Themes of the Day:

• Intrusive and Extrusive Bodies
• Field Relations

Intrusive Igneous Bodies

• Intrusive forms:
  • magma body, country rock, xenolith
  • pluton, stock, batholith
  • sill, dike
  • volcanic neck - e.g., Devils Tower, WY, Shiprock, NM
  • xenoliths
  • Dikes
  • Sill
  • Veins
  • Goo - More Goo
  • Columnar Jointing - More Columnar Jointing - Giants Causeway
  • Pluton
  • Roof Pendant
  • Igneous Compositions and classification - Up next