ROCKS

Question 1

• natural occurring solid mass/aggregate materials
• contains organic materials (ex: fossils, shells, teeth)
• no definite chemical composition

Answer 1

ROCKS

Question 2

2 or more minerals composed of rock

Answer 2

AGGREGATES

Question 3

EXAMPLE OF AGGREGATE

Answer 3

(IR) GRANITE COMPOSED OF FELDSPAR, MICA, QUARTZ

Question 4

3 TYPES OF ROCKS

Answer 4

IGNEOUS, SEDIMENTARY, METAMORPHIC

Question 5

• from molten rock materials
• can be formed from either magma or lava
• magma solidifies (naninigas)

Answer 5

IGNEOUS ROCKS

Question 6

PROCESS
- magma cools and crytallizes

Answer 6

CRYSTALLIZATION

Question 7

2 TYPES OF IGNEOUS ROCKS

Answer 7

INTRUSIVE & EXTRUSIVE

Question 8

• mabagal ang cooling time
  time: thousands of yrs
• mabagal lumamig

ex: granite, diorite, pegmatite

Answer 8

INTRUSIVE/PLUTONIC

PLUTO > roman god of the underworld

Question 9

• mabilis ang cooling time
  time: sec to months
• nilabas ng lava
• mabilis lumamig

ex: obsidian, basalt, andesite

Answer 9

EXTRUSIVE/VOLCANIC

Question 10

4 CLASSIFICATION OF IR (CHEMICAL)

Answer 10

FELSIC, ANDESITIC, BASALTIC, ULTRAMAFIC

Question 11

color: light
dominant minerals: feldspar, quarts, mica
- 65%

Answer 11

FELSIC (GRANITIC)

Question 12

color: light to grey
DM: felsic, mafic, little or no quartz
- 55% - 65%

Answer 12

INTERMEDIATE (ANDESITIC)

Question 13

color: grey to black
DM: plagioclase and pyroxene smaller amounts of olivine
- 45% - 55%

Answer 13

BASALTIC

Question 14

color: black to olive green
DM: olivine and/or pyroxene
- less than 45%

Answer 14

ULTRAMAFIC

Question 15

4 CLASSIFICATION OF IR (TEXTURE)

Answer 15

COARSE-GRAINED, FINE GRAINED, PORPHYRITIC, GLASSY

Question 16

• large crystals
  ex: granite, diorite, gabbro, peridotite

Answer 16

COARSE-GRAINED

Question 17

• small crystals
  ex: rhyolite, andesite, basalt, komatiite,

Answer 17

FINE GRAINED

Question 18

• mixed (large embedded in small crystals)
• andesite porphyry and rhyolite porphyry

Answer 18

PORPHYRITIC

Question 19

• no crystals
  ex: pumice

Answer 19

GLASSY

Question 20

• formed near the surface of the earth

Answer 20

SEDIMENTARY

Question 21

• broken fragments of rocks

Answer 21

SEDIMENTS

Question 22

3 TYPES OF SEDIMENTS

Answer 22

CLASTS/DETRITUS
CHEMICAL/DISSOLVED
ORGANIC

Question 23

• formed from mechanical weathering
  ex: conglomerate, shale, sandstone

Answer 23

CLASTS/DETRITUS

Question 24

• from precipitation
  ex: limestone, dolomite, coal, rock salt, chert, hematite

Answer 24

CHEMICAL/DISSOLVED

Question 25

• formed from the accumulation of plant or animal debris
  ex: chalk, coal, lignite

Answer 25

ORGANIC

Question 26

• compaction & cementation of the sediments

Answer 26

PROCESS: LITHIFICATION

Question 27

• formed kahit sa anong bato
• came from other/older rocks
  -IR or SR
• crystalline

Answer 27

METAMORPHIC ROCKS

Question 28

• to change form
• process of change in the structure, texture, or
  composition of rocks caused by agents of heat,
  deforming pressure

Answer 28

METAMORPHISM