Rocks

Question 1

What is a concept used to explain how the three basic rock types are related and how Earth processes, over geologic time, change a rock from one type into another.

Answer 1

ROCK CYCLE

Question 2

What is an aggregate of minerals ?

Answer 2

ROCK

Question 3

What are the three types of rocks?

Answer 3

Igneous
Sedimentary
Metamorphic

Question 4

is any crystalline or glassy rock that forms from cooling of a magma.

Answer 4

Igneous rocks

Question 5

Crystallized below the surface of the earth
texture: coarse-grained

Answer 5

Plutonic rocks

Question 6

Granite

Answer 6

Igneous - plutonic

Question 7

Diorite

Answer 7

Igneous - plutonic

Question 8

Crystallized on the surface of the earth
texture: fine-grained

Answer 8

Vulcanic

Question 9

Rhyolite

Answer 9

IGNEOUS - Vulcanic

Question 10

Andesite

Answer 10

Igneous - vulcanic

Question 11

Basalt

Answer 11

Igneous - Vulcanic

Question 12

rocks that form near the surface of the earth through chemical precipitation from water or by cementation of loose fragments

Answer 12

Sedimentary

Question 13

Breaking down of rocks to sediments

Answer 13

WEATHERING

Question 14

Compaction and cementation of sediments to rocks

Answer 14

LITHIFICATION

Question 15

causes the disintegration of rock to smaller fragments

Answer 15

Weathering

Question 16

disintegration of rocks and minerals by a physical or mechanical process.

Answer 16

Physical Weathering

Question 17

decomposition of rocks and minerals.

Answer 17

Chemical weathering

Question 18

Classified on particle size
The presence of variable grain sizes is indicative of sedimentary differentiation which is actually a function of processes happening in different sedimentary environment.

Answer 18

CLASTICS

Question 19

Conglomerate

Answer 19

Sedimentary - clastic

Question 20

Breccia

Answer 20

Sedimentary - Clastic

Question 21

Sandstone

Answer 21

Sedimentary - clastics

Question 22

High quartz percent in composition

Answer 22

Arenities

Question 23

Composed mainly clay minerals

Answer 23

Argillities

Question 24

Formed through evaporation and precipitation

Answer 24

Non clastics

Question 25

Evaporites (halite, gypsum dolostone)

Answer 25

Sedimentary - Non clastics

Question 26

Precipates (limestone

Answer 26

Sedimentary - Non clastics

Question 27

Bioclastic (coal)

Answer 27

Sedimentary - non clastics

Question 28

form as a result of increasing the pressure and/or temperature on a previously existing rock to form a new rock.

Answer 28

Metamorphic rocks

Question 29

Refers to the changes in mineral assemblage and texture.

Answer 29

Methamorphism

Question 30

What are the agents of methamorphism

Answer 30

Heat, pressure and chemically active fluids

Question 31

Heat and chemically-active fluid as agents
Creates non-foliated metamorphic rocks

Answer 31

Contact methamorphism

Question 32

Hornfeels

Answer 32

Methamorphic - Contact methamorphism

Question 33

Marble

Answer 33

Methamorphic - contact methamorphism

Question 34

There are no alignment or layering of minerals.

Answer 34

Non- foliated rocks

Question 35

Pressure as agent
Creates foliated metamorphic rocks
Occurs at regional scale

Answer 35

Regional metamorphism

Question 36

There are visible alignment or layering of minerals.

Answer 36

Foliated rocks

Question 37

Shale

Answer 37

Methamorphic - foliated rocks

Question 38

Slate

Answer 38

Methamorphic - foliated

Question 39

Phyllite

Answer 39

Metamorphic - foliated

Question 40

Schist

Answer 40

Methamorphic - foliated

Question 41

Gnesis

Answer 41

Methamorphic - foliated

Question 42

Cooling and crystallization of magma

Answer 42

Igneous

Question 43

Lithification of sediments

Answer 43

Sedimentary

Question 44

Application of heat, pressure & fluids

Answer 44

Methamorphic