PHSC 211 Final Exam Questions With
Correct Answers
If ||2,000 ||atoms ||of ||206Pb ||are ||found ||in ||a ||mineral ||sample, ||the ||how ||many ||helium ||atoms ||
were ||produced? ||- ||CORRECT ||ANSWER✔✔-16,000
Mount ||Fuji ||and ||Mount ||St. ||Helens ||in ||the ||western ||United ||States ||are ||examples ||
of__________ ||- ||CORRECT ||ANSWER✔✔-Stratovolcanoes
The ||color ||of ||a ||mineral's ||powder ||is ||known ||as_______ ||- ||CORRECT ||ANSWER✔✔-streak
Which ||of ||the ||following ||pairs ||does ||NOT ||go ||together? ||- ||CORRECT ||ANSWER✔✔-Phyllite, ||
High-grade ||metamorphism
Pumice ||and ||scoria ||are ||easily ||identifiable ||because ||of ||their_________ ||textures ||- ||CORRECT ||
ANSWER✔✔-Vesicular
The ||first ||minerals ||to ||crystallize ||as ||a ||magma ||cools ||tend ||to ||be________ ||- ||CORRECT ||
ANSWER✔✔-Olivine ||& ||pryoxene? ||Calcium ||plagioclasts?
Uranium-238 ||radioactively ||decays ||into___________ ||- ||CORRECT ||ANSWER✔✔-None ||of ||the ||
above/thorium-234
This ||is ||an ||unconformity ||where ||younger ||sedimentary ||rocks ||overlie ||older ||igneous ||or ||
metamorphic ||rocks. ||- ||CORRECT ||ANSWER✔✔-Disconformity
Which ||of ||the ||following ||is ||NOT ||true ||of ||the ||mineral ||quartz? ||- ||CORRECT ||ANSWER✔✔-It ||is
||always ||colorless
, How ||many ||years ||pass ||in ||four ||Carbon-14 ||half-lives? ||- ||CORRECT ||ANSWER✔✔-22,920
The ||parent ||rock ||(i.e.,precursor) ||of ||marble ||is ||- ||CORRECT ||ANSWER✔✔-Limestone
The ||most ||recent ||geologic ||period ||is ||the ||____________ ||- ||CORRECT ||ANSWER✔✔-Cenozoic
Which ||mineral ||exhibits ||one ||plan ||of ||cleavage? ||- ||CORRECT ||ANSWER✔✔-Muscovite
Which ||environment ||of ||deposition ||typically ||evidences ||poorly-sorted ||particles? ||- ||CORRECT ||
ANSWER✔✔-Glacial
High-temperature ||metamorphism ||caused ||by ||molten ||rock ||coming ||into ||contact ||with ||pre-
existing ||rock ||is ||known ||as ||________ ||metamorphism ||- ||CORRECT ||ANSWER✔✔-Galena, ||
pyrite, ||magnetite, ||and ||some ||varieties ||of ||hematite
This ||principle ||of ||relative ||dating ||states ||that ||in ||a ||sequence ||of ||sedimentary ||rocks, ||the ||
oldest ||rocks ||are ||typically ||on ||the ||bottom ||with ||younger ||beds ||on ||top ||- ||CORRECT ||
ANSWER✔✔-The ||principle ||of ||superposition
This ||chemical ||sedimentary ||rock ||is ||composed ||almost ||entirely ||of ||tiny ||calcite ||spheres ||- ||
CORRECT ||ANSWER✔✔-Oolitic ||limestone
The ||decay ||chain ||for ||Uranium-238 ||consists ||of______ ||decay ||steps ||- ||CORRECT ||ANSWER✔✔-
21
According ||to ||your ||lab ||manual____________ ||- ||CORRECT ||ANSWER✔✔-The ||discovery ||of ||
magnetic ||reversals ||was ||made ||by ||Motonori ||Matuyama
Correct Answers
If ||2,000 ||atoms ||of ||206Pb ||are ||found ||in ||a ||mineral ||sample, ||the ||how ||many ||helium ||atoms ||
were ||produced? ||- ||CORRECT ||ANSWER✔✔-16,000
Mount ||Fuji ||and ||Mount ||St. ||Helens ||in ||the ||western ||United ||States ||are ||examples ||
of__________ ||- ||CORRECT ||ANSWER✔✔-Stratovolcanoes
The ||color ||of ||a ||mineral's ||powder ||is ||known ||as_______ ||- ||CORRECT ||ANSWER✔✔-streak
Which ||of ||the ||following ||pairs ||does ||NOT ||go ||together? ||- ||CORRECT ||ANSWER✔✔-Phyllite, ||
High-grade ||metamorphism
Pumice ||and ||scoria ||are ||easily ||identifiable ||because ||of ||their_________ ||textures ||- ||CORRECT ||
ANSWER✔✔-Vesicular
The ||first ||minerals ||to ||crystallize ||as ||a ||magma ||cools ||tend ||to ||be________ ||- ||CORRECT ||
ANSWER✔✔-Olivine ||& ||pryoxene? ||Calcium ||plagioclasts?
Uranium-238 ||radioactively ||decays ||into___________ ||- ||CORRECT ||ANSWER✔✔-None ||of ||the ||
above/thorium-234
This ||is ||an ||unconformity ||where ||younger ||sedimentary ||rocks ||overlie ||older ||igneous ||or ||
metamorphic ||rocks. ||- ||CORRECT ||ANSWER✔✔-Disconformity
Which ||of ||the ||following ||is ||NOT ||true ||of ||the ||mineral ||quartz? ||- ||CORRECT ||ANSWER✔✔-It ||is
||always ||colorless
, How ||many ||years ||pass ||in ||four ||Carbon-14 ||half-lives? ||- ||CORRECT ||ANSWER✔✔-22,920
The ||parent ||rock ||(i.e.,precursor) ||of ||marble ||is ||- ||CORRECT ||ANSWER✔✔-Limestone
The ||most ||recent ||geologic ||period ||is ||the ||____________ ||- ||CORRECT ||ANSWER✔✔-Cenozoic
Which ||mineral ||exhibits ||one ||plan ||of ||cleavage? ||- ||CORRECT ||ANSWER✔✔-Muscovite
Which ||environment ||of ||deposition ||typically ||evidences ||poorly-sorted ||particles? ||- ||CORRECT ||
ANSWER✔✔-Glacial
High-temperature ||metamorphism ||caused ||by ||molten ||rock ||coming ||into ||contact ||with ||pre-
existing ||rock ||is ||known ||as ||________ ||metamorphism ||- ||CORRECT ||ANSWER✔✔-Galena, ||
pyrite, ||magnetite, ||and ||some ||varieties ||of ||hematite
This ||principle ||of ||relative ||dating ||states ||that ||in ||a ||sequence ||of ||sedimentary ||rocks, ||the ||
oldest ||rocks ||are ||typically ||on ||the ||bottom ||with ||younger ||beds ||on ||top ||- ||CORRECT ||
ANSWER✔✔-The ||principle ||of ||superposition
This ||chemical ||sedimentary ||rock ||is ||composed ||almost ||entirely ||of ||tiny ||calcite ||spheres ||- ||
CORRECT ||ANSWER✔✔-Oolitic ||limestone
The ||decay ||chain ||for ||Uranium-238 ||consists ||of______ ||decay ||steps ||- ||CORRECT ||ANSWER✔✔-
21
According ||to ||your ||lab ||manual____________ ||- ||CORRECT ||ANSWER✔✔-The ||discovery ||of ||
magnetic ||reversals ||was ||made ||by ||Motonori ||Matuyama
