Introduction to Metamorphism

0.0(0)
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/21

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

22 Terms

1
New cards
Metamorphism
A subsolidus process leading to changes in mineralogy and/or texture in a rock due to differences in physical and/or chemical conditions.
2
New cards
Protolith
The original, unmetamorphosed rock from which a metamorphic rock forms.
3
New cards
Geothermal gradient
The rate of increase in temperature with depth in the Earth.
4
New cards
Foliation
The alignment of mineral grains or structural features within a metamorphic rock.
5
New cards
Contact metamorphism
Metamorphism caused by the heat from nearby igneous intrusions.
6
New cards
Regional metamorphism
Metamorphism that affects large areas of rock, often associated with orogenic (mountain-building) activity.
7
New cards
Retrograde metamorphism
Changes that occur as a rock cools and decompresses after experiencing peak metamorphic conditions.
8
New cards
Differential stress
Stress that is not uniform and differs in direction, causing deformation.
9
New cards
Hydrothermal metamorphism
Metamorphism that involves hot, water-rich fluids affecting the rock.
10
New cards
Migmatite
A mixed rock resulting from partial melting and metamorphism.
11
New cards
Granofels
Medium- to coarse-grained metamorphic rocks without clear foliation.
12
New cards
Eclogite
A high-pressure metamorphic rock composed mainly of garnet and omphacite.
13
New cards
Amphibolite
A metamorphic rock primarily composed of amphibole and plagioclase.
14
New cards
Metasomatism
The process of chemical alteration of a rock by hydrothermal and other fluids.
15
New cards
Lithostatic pressure
Pressure exerted on a rock by the weight of overlying material.
16
New cards
Shear stress
Stress that occurs when forces are applied parallel to a surface.
17
New cards
Mineralogy
The study of minerals, their compositions, properties, and classifications.
18
New cards
Peak metamorphic conditions
The highest temperature and pressure conditions a rock experiences during metamorphism.
19
New cards
Slaty cleavage
The property of a metamorphic rock to split along flat planes.
20
New cards
Phyllite
A fine-grained metamorphic rock with a foliation that shines due to micaceous minerals.
21
New cards
Schistosity
A type of foliation present in schist that reflects the alignment of larger mineral grains.
22
New cards
Granite
A type of igneous rock commonly serving as a protolith for metamorphic rocks.