Slate(Metamorphic)
~ -low-grade metamorphism
-fine gained
- originally mudrocks, and volcanic ash
Phyllite (Metamorphic)
~ -glassy sheen an wavy texture
-more temp and pressure than slate
-Composed mainly of fine crystals of muscovite and chlorite
Schist(Metamorphic)
~ -Medium to coarse gr...
✓✓✓✓~ A mass of rock formed when a large body of magma cools inside the crust
Laccolith
✓✓✓✓~ A local intrusive body with other rocks below(fed by dykes)
Examples of Batholiths
✓✓✓✓~ Sieraa nevada, Coast range on the west coast
Laccoliths examples
✓✓✓✓~ Devils tower(Wyoming), Mount Royal(montreal)
Torres del paine(chile)
What are magam 3 components
✓✓✓✓~ Melt(the liquid portion composed of mobile ions)
Solids(If any are silicate minerals that have already crystallized from the melt)
, Volatiles(gases dissolved in the melt like H2O, CO2 SO2) violitiles make magma
rise faster and change how it behaves
geothermal gradient
✓✓✓✓~ the gradual increase in temperature with depth in the crust on average 25 degrees
per km
Rocks in the lower crus and upper mantle are between what temperatures
✓✓✓✓~ 1500-2500 degrees
What 3 causes cause melting to beginning
✓✓✓✓~ Confining pressure drops slightly, Temperature increased, volatiles are introduced
What is decompression melting
✓✓✓✓~ melting due to a drop in confining pressure that occurs as rock rises
What is crystallization?
✓✓✓✓~ Cooling magma results in the systematic arrangement of ion into crystal structures.
What is a mantle of composed of peridotite rich of?
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 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 Latestupdate. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £10.23. You're not tied to anything after your purchase.
