Summary
Zusammenfassung Metamorphite
- Course
- Institution
Klassifikation von Metamorphiten, sowie tabellarische Auflistung einiger Beispiele mit Mineralbestand und Entstehung/Vorkommen.
[Show more]
Seller
Follow
Geo123
Content preview
MetamorphiteGefüge:
- Foliation (stofflicher Lagenbau)
- Schieferung (starke Foliation; bevorzugte Teilbarkeit)
- Parallelgefüge (Vorstufe der Schieferung; Gestein massig)
- Lineation (durch stängelige Minerale; auf Schichtoberfläche)
- Falten (verformte Lagen im Gestein)
Gesteine (Gefüge):
- Fels (→ gut erkennbare Korngröße) Fels:
- Hornfels (→ kleine Korngröße) richtungslos (isotrop), massig
- Tonschiefer (→ geringste Schieferung,
niedrig metamorph, eher Ton) Schiefer:
- Phyllit (→ extrem gute Schieferung, bevorzugte Teilbarkeit in eine
phyllitischer Glanz) Richtung, Minerale in Schichten
- Schiefer (→ auch grobkönrig) angeordnet, aus Tonmineralen
- Knotenschiefer (→ große Minerale bildet sich Glimmer
(Porphyroblasten) in Schiefermatrix)
- Gneis massig, kompakt, Parallelgefüge, Einregelung der Minerale
- Migmatit partiell aufgeschmolzenes Gestein
- Mylonit stark tektonisch deformiert (Scherzonen), feinkörnig, rekristallisiert,
aus großen Kristallen werden viele kleine Kristalle
, Ausgangsgestein: Basalt
Fazies T/P Matite (Basalt)
Zeolith 0-200°C (LP) Zeolithe
Pumpellyit – 200-300°C (LP) Pumpellyit, Prehnit
Prehnit
Grünschiefer 300-500°C (LP) Chlorit, Epidotit, Aktinolith
(Amphibol), Albit (weiß)
→ z.B. Grünschiefer
Amphibolit 500- ∽700°C Hornblende (Amphibol), Plagioklas,
(Klinopyroxen, Epidot, Granat)
→ z.B. Amphibolit
Granulit HT Orthopyroxene, Granat,
(Klinopyroxene, Plagioklas)
→ z.B. 2 Px-Granulite
Blauschiefer 200-600°C (HT) Glaukophan (Amphibol), Lawsonit,
Chlorit, Epidotit, Granat, Albit
→ z.B. Blauschiefer
Eklogit > 500°C Granat, Omphazit, Disthen,
(Phengit, Epidotit)
→ z.B. Eklogit
Ausgangsgestein: Granit
Fazies Granit
Zeolith Muskovit, Chlorit
Pumpelliyt-Prehnit Muskovit, Chlorit
→ Orthogneis
Grünschiefer Muskovit, Chlorit, Biotit
→ Orthogneis
Amphibolit Muskovit (→ out), Biotit, Granat
→ Orthogneis
Granulit Orthopyroxen, Granat, Biotit
→ Orthogneis
Blauschiefer Glaukophan, Albit, Phengit, Granat
→ Granat-Phengit-Glimmerschiefer
Eklogit Granat, Phengit, Chlorit, Kyanit (Dithen)
→ Granat-Phengit-Glimemrschiefer
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Geo123. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.18. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
48072 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 15 years now