Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Metamorphic Rocks
HSAG unit definition
| Term | Definition |
|---|---|
| contact metamorphism | mineralogy and texture of a body of rock are changed due to the heat and pressure from an intrusive body of magma. |
| hydrothermal metamorphism | metamorphism due to a high temperature fluid of variable composition |
| foliated texture | mineral grains from pre-existing rocks are oriented parallel to each other or organized into distinctive bands during metamorphosis |
| non-foliated texture | non-foliated metamorphic rocks appear massive or granular without the characteristic parallel mineral grains in foliated rocks |
| gneissic texture | metamorphic rocks that have minerals separated into light and dark bands |
| slaty cleavage | metamorphic rocks that are fine-grained, dull surfaces, and split apart easily. |
| regional metmorphism | metamorphism over a large region that could create an orogenic event. (mountain building) |
| porphyroblastic texture | metamorphic rock which has many porphyroblasts |
| schistosity | the layering in a coarse grained, crystalline rock due to the parallel arrangement of platy mineral grains such as muscovite and biotite |
| parent rock (protolith) | rock type before metamorphism occurred |
| recrystallization | heat and pressure changes the crystalline structure of a mineral during metamorphism |
| porphyroblast | a large mineral crystal in a metamorphic rock which has grown within the finer grained groundmass |
Created by:
Langerphysics
Popular Earth Science sets