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Mind map

Metamorphic Reactions

Sophie Alexander English

Map content

Metamorphic Reactions

Reactions
- Dehydration
  - Muscovite + Quartz -> K feldspar + Sillimanite + H20
  - 200MPA and 600 degrees
- Retrograde
  - Garnet -> Chloride
  - High Grade
  - Slow cooling
- Solid State
  - Kyanite
    - 250 - 900 KPA
    - 400 - 775 degrees
  - Sillimanite
    - 0-900kpa
    - 500-800 degrees
  - Andalusite
    - 0-350 kpa
    - 400-775 degrees
- Continuous
  - Garnet + Quartz + Al2SiO5 -> Corderite
  - C + G (Fe/Mg)
    - Varied line
- Decarbonation
  - Calcite + Quartz -> Wollastonite + CO2 + Heat
  - Co2 in fluid stabalises left hand side
Factors
- Rate
  - Increased T = increased RR
  - H20 = increased RR
- Fluid
  - % H20/CO2 affects stability
- Timing
  - Pre
    - Undulose
    - Fracture
    - Compaction
    - P Shadow
    - Inclusions
  - Syn
    - S shaped
  - Post
    - Mica Mimics
    - Strained Plag. in Zebra patterns
    - Poikiloblasts wavy

Information

Description: Mind Map on Metamorphic Reactions, created by Sophie Alexander on 19/01/2015.
Created by: Sophie Alexander · Jan 2015
Updated: Feb 19, 2016
Views: 0
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