METAMORPHIC

Question 1

It is the force applied to a rock.

Answer 1

stress

Question 2

Metamorphism begins at what temperature?

Answer 2

150-200 °C

Question 3

Metamorphic minerals that form only under metamorphic temperatures and pressures

Answer 3

Mineral Assemblage

Question 4

A chemical and mineral composition alteration of rocks by reactions with
hydrothermal fluids.

Answer 4

Metasomatism

Question 5

This path indicates decreasing temperatures and pressures as rock is carried towards the Earth’s surface.

Answer 5

Retrograde

Question 6

A mixture of igneous rock and relict of metamorphic rock

Answer 6

Migmatite

Question 7

Textural change to a pre-existing “parent rock” or protolith

Answer 7

Metamophism

Question 8

Repetitive layering due to preferred mineral orientation.

Answer 8

Foliation

Question 9

The increase in temperature with increasing depth in Earth’s interior.

Answer 9

Geothermal Gradient

Question 10

A part of Metamorphic processes where formation of new metamorphic mineral crystals

Answer 10

Neocrystallization

Question 11

It is a metamorphic process that change in grain shape and size only

Answer 11

Recrystallization

Question 12

Force applied in a particular direction (shearing)

Answer 12

Differential Stress

Question 13

Are non-foliated metamorphic rocks

Answer 13

Granoblastic

Question 14

Force applied equally in all directions (compression).

Answer 14

Confining Stress

Question 15

Dark and light layers of colored minerals

Answer 15

Compositional Banding

Question 16

Preferred orientation of large mica-flakes.

Answer 16

Schistosity

Question 17

Distinctive arrangements of mineral grains not found in other rock types.

Answer 17

Metamorphic Texture

Question 18

Plays a critical role in determining which minerals occur within a metamorphic rock.

Answer 18

Temperature

Question 19

Alter a rock’s composition, mineralogy, and texture by packs atoms tightly
resulting to denser minerals

Answer 19

Role of Pressure / Pressure

Question 20

Alters by introducing or removing chemical components that are soluble in heated water.

Answer 20

Role of Hydrothermal Fluids / Hydrothermal Fluids

Question 21

it refers to the degree of metamorphic change a rock has undergone, which
correlates with changes in mental composition and textures as pressure and temperature increases.

Answer 21

metamorphic grade

Question 22

Mineral grains dissolve producing ions that migrate then precipitate elsewhere.

Answer 22

pressure solution

Question 23

One mineral which transforms to another mineral with the same composition but
different crystal structure.

Answer 23

phase change

Question 24

A type of foliation where it has strong foliation which allows it to split into thin sheets.

Answer 24

slaty cleavage

Question 25

Compositionally layered rock with alternating dark and light-colored minerals

Answer 25

Gneiss