Metamorphism

What is the effect of heat and pressure in rocks as there is an increase in depths?

• foliation surfaces shine

• low -grade metamorphism

• grain size becomes coarse

• increase in mineral alignment

Which of the following rock samples is less influenced by the heat?

• slate

• schist

• gneiss

• phyllite

Tags

NGSS.HS-ESS2-3

How do you know the grain size texture of hornfels?

• fine

• coarse

• coarse to fine

• medium coarse

All of the following samples are included in non-foliated classification of metamorphic rock EXCEPT

• marble

• phyllite

• honrfels

• metaconglomerate

Complete the analogy : Foliated is to slate as non-foliated is to _________.

• schist

• gneiss

• marble

• phyllite

It occurs when rocks are buried to depths of several hundred meters and form new low-grade rocks due to the temperature increase.

• CONTRACT METAMORPHISM

• BURIAL METAMORPHISM

• DYNAMIC METAMORPHISM

• REGIONAL METAMORPHISM

It occurs when a meteorite hits the surface of earth & transfers a lot of heat to the place of impact, causing rocks to change.

• RETOGRADE METAMORPHISM

• DYNAMIC METAMORPHISM

• SHOCK METAMORPHISM

• REGIONAL METAMORPHISM

4. It is the formation of new minerals from the pre-existing minerals due to heat.

• NEOCRYSTALLIZATION

• RYCRYSTALLIZATION

• PROTOLITH

• PLASTIC DEFORMATION

It occurs when heat is transferred from igneous intrusions to nearby rocks.

• Burial Metamorphism

• Dynamic Metamorphism

• Thermal metamorphism

• Contract Metamorphism

10. It is a process where there is growth in size of mineral grains of pre-existing materials.

• Neocrystallization

• Phase Change

• Plastic Deformation

• Recrystallization