NJIT PHYSICS 203 EARTH IN SPACE
EXAM 2 QUESTIONS AND DETAILED
CORRECT ANSWERS | A+ GRADE
VERIFIED ANSWERS
silicates Correct Answer the most common type of mineral
based on SO4, tetrahedral structure
types of silicates in increasing complexity Correct Answer
nesosilicates, sorosilicates, single chain inosilicates,
double chain inosilicates, phyllosilicates, tectosilicates
types of silicates from darkest to lightest Correct Answer
nesosilicates, sorosilicates, single chain inosilicates,
double chain inosilicates, phyllosilicates, tectosilicates
darker silicates are more dense due to the most amount of
metals such as magnesium and iron
lighter silicates are less dense due to the smaller amount
of metals
sulfates Correct Answer mineral group based on sulfur
oxygen
carbonates Correct Answer mineral group based on
carbon oxygen
oxides Correct Answer mineral group based on metals
connected with oxygen
,- iron (red), aluminum, copper (green)
halides Correct Answer a mineral group based on the
halogens
native elements Correct Answer based on one atom type
only
- pure iron/gold
petrology Correct Answer the study of rocks
rock Correct Answer any naturally occurring, inorganic
solid that is a mixture/aggregate of minerals with no
definite chemical structure
petrography Correct Answer the study of the classification
of rocks
petrogenesis Correct Answer the study of how rocks form
types of rocks Correct Answer igneous, sedimentary,
metamorphic
igneous rock Correct Answer molten rock that crystallizes
into solid rock
extrusive igneous rock Correct Answer VOLCANIC:
molten rock (lava) that came out of the Earth, cools off and
then crystallizes
- aphanitic and glassy (short cooling period)
, intrusive igneous rock Correct Answer PLUTONIC: molten
rock (magma) that stays in the center of the Earth and
then cools off and then crystallizes
- phaneritic and pegmatitic (long cooling period)
texture of igneous rock Correct Answer records the
cooling history of the rock
- Pegmatic: extremely coarsely grained, rough to touch
- Phaneritic: coarsely grained
- Aphanatic: fine grained
- Glassy: extremely fine grained, soft to touch
quenching Correct Answer fast cooling, leads to glassy
rock
ex. molten rock meets water
Porphyritic Correct Answer describing an igneous rock
composed of both large and small crystals due to an
interrupted cooling history
types of silicates Correct Answer - malfic: hottest / most
dense / darkest
- intermediate
- felsic: coolest / least dense / lightest
bowen's reaction series Correct Answer MALFIC:
extrusive: basalt // intrusive: gabbro
INTERMEDIATE: extrusive: andesite// intrusive: diorite
FELSIC: extrusive: rhyolite // intrusive: granite
EXAM 2 QUESTIONS AND DETAILED
CORRECT ANSWERS | A+ GRADE
VERIFIED ANSWERS
silicates Correct Answer the most common type of mineral
based on SO4, tetrahedral structure
types of silicates in increasing complexity Correct Answer
nesosilicates, sorosilicates, single chain inosilicates,
double chain inosilicates, phyllosilicates, tectosilicates
types of silicates from darkest to lightest Correct Answer
nesosilicates, sorosilicates, single chain inosilicates,
double chain inosilicates, phyllosilicates, tectosilicates
darker silicates are more dense due to the most amount of
metals such as magnesium and iron
lighter silicates are less dense due to the smaller amount
of metals
sulfates Correct Answer mineral group based on sulfur
oxygen
carbonates Correct Answer mineral group based on
carbon oxygen
oxides Correct Answer mineral group based on metals
connected with oxygen
,- iron (red), aluminum, copper (green)
halides Correct Answer a mineral group based on the
halogens
native elements Correct Answer based on one atom type
only
- pure iron/gold
petrology Correct Answer the study of rocks
rock Correct Answer any naturally occurring, inorganic
solid that is a mixture/aggregate of minerals with no
definite chemical structure
petrography Correct Answer the study of the classification
of rocks
petrogenesis Correct Answer the study of how rocks form
types of rocks Correct Answer igneous, sedimentary,
metamorphic
igneous rock Correct Answer molten rock that crystallizes
into solid rock
extrusive igneous rock Correct Answer VOLCANIC:
molten rock (lava) that came out of the Earth, cools off and
then crystallizes
- aphanitic and glassy (short cooling period)
, intrusive igneous rock Correct Answer PLUTONIC: molten
rock (magma) that stays in the center of the Earth and
then cools off and then crystallizes
- phaneritic and pegmatitic (long cooling period)
texture of igneous rock Correct Answer records the
cooling history of the rock
- Pegmatic: extremely coarsely grained, rough to touch
- Phaneritic: coarsely grained
- Aphanatic: fine grained
- Glassy: extremely fine grained, soft to touch
quenching Correct Answer fast cooling, leads to glassy
rock
ex. molten rock meets water
Porphyritic Correct Answer describing an igneous rock
composed of both large and small crystals due to an
interrupted cooling history
types of silicates Correct Answer - malfic: hottest / most
dense / darkest
- intermediate
- felsic: coolest / least dense / lightest
bowen's reaction series Correct Answer MALFIC:
extrusive: basalt // intrusive: gabbro
INTERMEDIATE: extrusive: andesite// intrusive: diorite
FELSIC: extrusive: rhyolite // intrusive: granite
