ye sci Flashcards
low-grade qualities
low temp/pressure, less than 400 degrees / MPA
high-grade qualities
high temp/pressure, more than 400 degrees / MPA
foliated qualities on banding, stress, squishing
banded, layered, different stress, arranged, squishing together
non foliated qualities on banding, stress, squishing
massive, no banding, uniform stress, no squishing
protolith definition
parent rock
what happens when you increase temp on grain size and water content
increase grain size, decrease water content, grow new minerals
what happens when you increase temp a lot
melt at 700 degrees, create magnitude
what happens when you increase pressure (density, porosity)
increase density, deform rock, decrease porosity
what is contact metamorphism on pressure, heat, deformation
low pressure, high heat, no deformation, “baked zone”
what is hydrothermal metamorphismon pressure, heat, deformation
low pressure, high heat, chem charge parent rock, low from hot water precipitation
what is regional metamorphism
both temp and pressure increase
what is burial metamorphism
bury very deep, increase temp/pressure
