GEOLOGY 1010 EXAM 2 (Latest Update
) Questions with Correct
Answers 100% Verified {Grade A} -
CLEMSON
What happens when there is too much change in metamorphic change? - correct
answer - melting into igneous
***this is wrong
Index Mineral - correct answer - mineral that forms under a narrower range of
pressure and temperature conditions
-Chlorite- low grade only
- Garnet- Intermediate Grade mostly
- Sillimanite- High Grade only
,Metamorphic Facies - correct answer - *group of index minerals that form at ~ the
same T/P*
ex:BLUE SCHIST FACIES- includes mineral glaucophane, lawsonite, epidote
What does facies information provide about metamorphism? - correct answer -
reconstructs HOW metamorphism occurred
ex: contact metamorphism
What is key in ID-ing clastic sedimentary rock names? - correct answer - grain size is
key
ex: sand = sandstone
ex: silt = siltstone
Rocks with Gravel sized grains - correct answer Conglomerate (if gravels are
moderate rounded)
,Breccia (if gravels are poorly rounded)
Rocks with Sand sized grains - correct answer Sandstone
Rocks with Silt sized grains - correct answer Siltstone
Rocks with Clay sized grains - correct answer Shale (if layered)
Mudstone (if unlayered)
Chemical Sediments - correct answer - form from chemical weathering (dissolution &
re-precipitation, saltwater evaporation)
- usually compromised of 1 major mineral type (ex: halite = rocksalt, quartz = chert)
- economically viable (b/c almost completely uniform of 1 mineral)
-SORTING AND ROUNDING DON'T APPLY TO CHEMICAL SEDIMENTS
, Biogenic Sediments - correct answer - formed from biological activity (animals,
plants)
ex: seashell
- some plants will not decay and make rock instead
Biogenic Rock Types/Names - correct answer - chalk = tiny shell remains
- limestone = carbonate particles
- coal = plant material
(all effervesce with HCl b/c carbonate is biogenic and reacts with HCl)
Mass Wasting - correct answer - landslides
- Transport of sediment and association materials downhill via gravity
Why are landslides important? - correct answer - is a sedimentary process (erosion
using gravity), hazardous
) Questions with Correct
Answers 100% Verified {Grade A} -
CLEMSON
What happens when there is too much change in metamorphic change? - correct
answer - melting into igneous
***this is wrong
Index Mineral - correct answer - mineral that forms under a narrower range of
pressure and temperature conditions
-Chlorite- low grade only
- Garnet- Intermediate Grade mostly
- Sillimanite- High Grade only
,Metamorphic Facies - correct answer - *group of index minerals that form at ~ the
same T/P*
ex:BLUE SCHIST FACIES- includes mineral glaucophane, lawsonite, epidote
What does facies information provide about metamorphism? - correct answer -
reconstructs HOW metamorphism occurred
ex: contact metamorphism
What is key in ID-ing clastic sedimentary rock names? - correct answer - grain size is
key
ex: sand = sandstone
ex: silt = siltstone
Rocks with Gravel sized grains - correct answer Conglomerate (if gravels are
moderate rounded)
,Breccia (if gravels are poorly rounded)
Rocks with Sand sized grains - correct answer Sandstone
Rocks with Silt sized grains - correct answer Siltstone
Rocks with Clay sized grains - correct answer Shale (if layered)
Mudstone (if unlayered)
Chemical Sediments - correct answer - form from chemical weathering (dissolution &
re-precipitation, saltwater evaporation)
- usually compromised of 1 major mineral type (ex: halite = rocksalt, quartz = chert)
- economically viable (b/c almost completely uniform of 1 mineral)
-SORTING AND ROUNDING DON'T APPLY TO CHEMICAL SEDIMENTS
, Biogenic Sediments - correct answer - formed from biological activity (animals,
plants)
ex: seashell
- some plants will not decay and make rock instead
Biogenic Rock Types/Names - correct answer - chalk = tiny shell remains
- limestone = carbonate particles
- coal = plant material
(all effervesce with HCl b/c carbonate is biogenic and reacts with HCl)
Mass Wasting - correct answer - landslides
- Transport of sediment and association materials downhill via gravity
Why are landslides important? - correct answer - is a sedimentary process (erosion
using gravity), hazardous
