MODULE 4 - Metamorphism

Question 1

What correctly describes the major role of pressure in producing metamorphic rocks?

Answer 1

Pressure leads to foliation in the rock

Question 2

What type of metamorphic rock will form if a mud rock experiences high-grade
metamorphism?

Answer 2

Schist

Question 3

Granite is an igneous rock that are formed through slow solidification of
magma; accordingly, it does not change very much at lower metamorphic
grades. Why is this so?

Answer 3

Granite minerals are still stable at lower temperatures.

Question 4

What is the source of increase of temperature and pressure in
regional metamorphism?

Answer 4

Increase in temperature with increasing depth of buria

Question 5

In what geographic area will there be the highest potential for regional metamorphism?

Answer 5

Mid-ocean ridge in the Atlantic Ocean

Question 6

Which of the following does NOT belong to the group?

Answer 6

Marble

Question 7

What is the process exhibited by parallel alignment of mica
in a metamorphic rock?

Answer 7

foliation

Question 8

order of increasing metamorphic grade

Answer 8

shale - slate - schist

Question 9

What transformation is directly related to pressure in
producing metamorphic rocks?

Answer 9

formation of foliation

Question 10

In which geographic area will there be a metamorphic rock with very distinct
foliations?

Answer 10

in convergent boundaries where plates move towards each other

Question 11

Low-grade metamorphism takes place at temperatures between about 200oC
to 320oC, and relatively low pressure. Which metamorphic rock is created at
this environmental setting

Answer 11

Slate

Question 12

The dissolve minerals in the fluids react with rocks that the fluids
penetrate causing changes in chemical and mineral compositions.

Answer 12

metasomatism process