Rocks

Question 1

Forms when magma or lava cools into a solid form

Answer 1

Igneous rocks

Question 2

Molten rocks inside the erath’s crust

Answer 2

Magma

Question 3

Magma that reached the surface

Answer 3

Lava

Question 4

Crystals are large if they are formed into a?

Answer 4

Slowly cooling magma

Question 5

Crystals are small if they are formed into a?

Answer 5

Rapidly cooling lava

Question 6

formed from magma and takes a long time to solidify into rocks, has phaneritic textures

Answer 6

Intrusive or plutonic

Question 7

Formed from lava, solidify quickly. Has a aphanitic and porphyritic texture.

Answer 7

Extrusive or volcanic

Question 8

the overall appearance of rock based on size, shape and crystal arrangement

Answer 8

Texture

Question 9

Produced when magma cools slowly at depth

Answer 9

Phaneritic

Question 10

Formed when lava cooled rapidly at or on the surface of the earth

Answer 10

Aphanitic

Question 11

Another term for phaneritic?

Answer 11

Coarse grained

Question 12

Another term for aphanitic?

Answer 12

Fine grained

Question 13

rocks that have large crystals embedded in a matrix of smaller crystals.

Answer 13

Porphyritic

Question 14

Large crystals in such a rock are called

Answer 14

Phenocrysts

Question 15

The matrix of smaller
crystals are called

Answer 15

Groundmass

Question 16

produced by very rapid cooling.

Answer 16

Glossy

Question 17

produced from the debris of an explosive eruption.

Answer 17

Pyroclastic

Question 18

air bubbles trapped inside

Answer 18

Vesicular

Question 19

unusual large crystals

Answer 19

pegmatitic

Question 20

Crystals are so small that they can only be distinguished through the use of microscope

Answer 20

Aphanetic

Question 21

produced by slow then rapid cooling

Answer 21

Porphyritic

Question 22

intergrown crystals are roughly equal in size and are large enough so that it can be identified without an aid of a microscope.

Answer 22

Phaneritic

Question 23

Granite and diorite

Answer 23

Phaneritic

Question 24

Rhyolite, andesite, basalt

Answer 24

Aphanitic

Question 25

Obsidian, pumice

Answer 25

Glossy

Question 26

pumice, seonia

Answer 26

Vesicular

Question 27

Formed at or near the surface of the Earth.

Answer 27

Sedimentary rocks

Question 28

the process of breaking down or dissolving rocks

Answer 28

Weathering

Question 29

What are the 4 sedimentary processes?

Answer 29

Weathering, lithification, deposition, and erosion

Question 30

Onsite breakdown of rocks

Answer 30

Weathering

Question 31

Forms when mineral crystals and clasts of plants, animals, or rocks are compressed or naturally cemented together.

Answer 31

Sedimentary rocks

Question 32

the process by which the soil and rock particles are driven by ice, water, wind

Answer 32

erosion

Question 33

process wherein the sediments are turned into sedimentary rock

Answer 33

Lithification

Question 34

laying down of sediment carried by any transport agent

Answer 34

Deposition

Question 35

*Originated and is transported as solid particles* derived from both chemical and mechanical weathering.

Answer 35

Detrital Sedimentary

Question 36

Composition of clastic sedimentary rocks

Answer 36

Grains, matrix and cement

Question 37

Eroded parts of other rocks

Answer 37

Clastic sedimentary

Question 38

Evaporation and precipitation from solution or lithification of organic matter

Answer 38

Non clastic sedimentary

Question 39

rocks with volcanic origin and may have undergone some stages in the sedimentary processes could be classified as sedimentary rock

Answer 39

Clastic sedimentary

Question 40

forms when a soluble material *produced by chemical weathering* are precipitated by either organic or inorganic processes.

Answer 40

Chemical sedimentary

Question 41

Forms from the accumulation and lithification of *organic debris*

Answer 41

Organic sedimentary rocks

Question 42

"Change form"

Answer 42

Metamorphism

Question 43

A process that changes the mineral content, texture, chemical composition

Answer 43

Metamorphism

Question 44

what are the 3 agents of metamorphic rocks?

Answer 44

Heat, pressure, chemically active fluids

Question 45

it provides the *energy* needed to drive the chemical reactions that result in the *recrystallization* of existing minerals and/or the formation of new minerals.

Answer 45

Heat

Question 46

Most important agent

Answer 46

Heat

Question 47

hydrating the minerals during the process

Answer 47

Chemically active fluids

Question 48

increases with depth as the *thickness of the rock increases.*

Answer 48

Pressure

Question 49

Where does metamorphism takes place?

Answer 49

preexisting rocks are subjected into new conditions.

Question 50

This term refers to any *planar arrangement* with mineral grains or within the rocks

Answer 50

Foliation

Question 51

Planar arrangement

Answer 51

Foliated texture

Question 52

develop in environments where *deformation is minimal*

Answer 52

Non foliated texture

Question 53

What are the 2 types of metamorphic textures?

Answer 53

Foliated and non foliated

Question 54

Origins in igneous rocks

Answer 54

Intrusove and extrusive

Question 55

Textures in igneous rocks

Answer 55

Phaneritic, aphenitic, porphyritic, glossy, pyroclastic, vesicular, pegmatitic

Question 56

types of sedimentary rocks

Answer 56

clastic, non clastic, detrital, organic, and chemical sedimentary rocks

Question 57

the parent rocks are composed of minerals that exhibit equidimensional crystals, such as quartz or calcite.

Answer 57

Non foliated

Question 58

Main factors of contact metamorphism

Answer 58

Heat and reactive fluids

Question 59

Contact metamorphism creates?

Answer 59

Non foliated

Question 60

Occurred when preexisting rocks gets in contact with magma

Answer 60

Contact metamorphism

Question 61

Rocks that are altered at *high temperatures and moderate pressures*

Answer 61

Hydrothermal metamorphism

Question 62

Main factor of regional metamorphism

Answer 62

Pressure

Question 63

This is common in basaltic rocks that lack hydrous minerals.

Answer 63

Hydrothermal metamorphism

Question 64

When an extraterrestrial body impacts with the earth, ultrahigh pressures can be generated in the impacted rock.

Answer 64

Shock metamorphism

Question 65

what textures shock metamorphism can produce?

Answer 65

Lamellae and shatter cones

Question 66

occurs in areas that have undergone considerable amount of mechanical deformation and chemical recrystallization

Answer 66

Regional metamorphism

Question 67

Occurs in a large scale

Answer 67

Regional metamorphism

Question 68

Regional metamorphism creates?

Answer 68

Foliated