Describes changes in the rocks or minerals that form as a result of magma movements. Mmagmatic segregations are mineral deposits created directly as a result of the separation of one part of a mass of molten rock in one spot. Some iron deposits are thought to have formed in this way, by a separation and concentration of magnetite crystals from a mass of magma.
Magmatic
| Geological Glossary: Magmatic |
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 | Geological Glossary. Peterson Field Guide to Rocks and Minerals, by Frederick H. Pough. Copyright © 1998 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. Read more |
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Mentioned in
- pneumatolytic metamorphism (petrology)
- cognate ejecta (geology)
- collapse caldera (geology)
- perimagmatic (geology)
- piecemeal stoping (geology)
- ring-fracture stoping (geology)
- telemagmatic (geology)
- burial metamorphism (geology)
- offset deposit (geology)
- phreatomagmatic (geology)
- pneumotectic (geology)
- resurgent (geology)
- zonal theory (geology)
- plutonic
