COFC GEOLOGY 105 LAB FINAL || WITH ERROR-
FREE SOLUTIONS.
shale correct answers sediment: mud
depositional environment: wet, marsh/swamp/lake/deep ocean
conglomerate correct answers sediment: unsorted
depositional environment: alluvial fan/river
varved shale correct answers sedimentary structure: varves
sediment: mud/silt
depositional environment: lakes
coquina correct answers - sedimentary rock made from fossilized seashells stuck together
- high energy
- shallow ocean
fossiliferous shale correct answers sedimentary structure: mud
sediment: mud
depositional environment: marsh/deep ocean
coal correct answers sediment: carbon
depositional environment: marsh/swamp
limestone correct answers a sedimentary rock consisting mainly of calcium that was deposited by
the remains of marine animals
fossil coral correct answers
sandstone correct answers sediment: sand
depositional environment: desert/coast
peat correct answers sediment: carbon
depositional environment: bogs
fossiliferous limestone correct answers sedimentary structure: fossil
sediment: marine fossils/carbonate mud
depositional environment: shallow ocean
siltstone correct answers sediment: silt
depositional environment: shallow ocean
halite correct answers sediment: evaporite
depositional environment: salt lake
, cross-bedded sandstone correct answers sedimentary structure: crossbeds
sediment: sand
depositional environment: desert/coast
gypsum correct answers sediment: evaporite
depositional environment: where water evaporates
chalk correct answers sediment: organic material
depositional environment: deep ocean
syncline/anticline correct answers formed by compression
anti: up-fold
syn: down-fold
normal fault correct answers
reverse fault correct answers - when footwall goes down & hanging goes up
- convergent plate boundary
thrust fault correct answers when footwall and hanging slide past each other
unconformities correct answers A break in the geologic record created when rock layers are
eroded or when sediment is not deposited for a long period of time.
stenos laws correct answers superposition, original horizontality, lateral continuity
superposition correct answers the principle that in undisturbed rock layers, the oldest rocks are
on the bottom
original horizontality correct answers layers of sediment are originally deposited horizontally
under the action of gravity
Lateral Continuity correct answers Principle that states that an original sedimentary layer extends
laterally until it tapers or thins at its edges.
half-lifes correct answers parent starts at 100% and then divide by 2 going down.
- ie. 1 'half-life' = 50% parent, 2 = 25% parent, 3 = 12.5% parent, etc. (as parent goes down,
daughter goes up)
determining age of rock from half-life correct answers if a rocks half-life is 200 million years old
and 3 half-lifes are depicted, multiply # by how many half-lifes are shown... 200 x 3 = 600 year
old rock
Dikes correct answers a structure built to prevent ocean waters from flooding adjacent land
FREE SOLUTIONS.
shale correct answers sediment: mud
depositional environment: wet, marsh/swamp/lake/deep ocean
conglomerate correct answers sediment: unsorted
depositional environment: alluvial fan/river
varved shale correct answers sedimentary structure: varves
sediment: mud/silt
depositional environment: lakes
coquina correct answers - sedimentary rock made from fossilized seashells stuck together
- high energy
- shallow ocean
fossiliferous shale correct answers sedimentary structure: mud
sediment: mud
depositional environment: marsh/deep ocean
coal correct answers sediment: carbon
depositional environment: marsh/swamp
limestone correct answers a sedimentary rock consisting mainly of calcium that was deposited by
the remains of marine animals
fossil coral correct answers
sandstone correct answers sediment: sand
depositional environment: desert/coast
peat correct answers sediment: carbon
depositional environment: bogs
fossiliferous limestone correct answers sedimentary structure: fossil
sediment: marine fossils/carbonate mud
depositional environment: shallow ocean
siltstone correct answers sediment: silt
depositional environment: shallow ocean
halite correct answers sediment: evaporite
depositional environment: salt lake
, cross-bedded sandstone correct answers sedimentary structure: crossbeds
sediment: sand
depositional environment: desert/coast
gypsum correct answers sediment: evaporite
depositional environment: where water evaporates
chalk correct answers sediment: organic material
depositional environment: deep ocean
syncline/anticline correct answers formed by compression
anti: up-fold
syn: down-fold
normal fault correct answers
reverse fault correct answers - when footwall goes down & hanging goes up
- convergent plate boundary
thrust fault correct answers when footwall and hanging slide past each other
unconformities correct answers A break in the geologic record created when rock layers are
eroded or when sediment is not deposited for a long period of time.
stenos laws correct answers superposition, original horizontality, lateral continuity
superposition correct answers the principle that in undisturbed rock layers, the oldest rocks are
on the bottom
original horizontality correct answers layers of sediment are originally deposited horizontally
under the action of gravity
Lateral Continuity correct answers Principle that states that an original sedimentary layer extends
laterally until it tapers or thins at its edges.
half-lifes correct answers parent starts at 100% and then divide by 2 going down.
- ie. 1 'half-life' = 50% parent, 2 = 25% parent, 3 = 12.5% parent, etc. (as parent goes down,
daughter goes up)
determining age of rock from half-life correct answers if a rocks half-life is 200 million years old
and 3 half-lifes are depicted, multiply # by how many half-lifes are shown... 200 x 3 = 600 year
old rock
Dikes correct answers a structure built to prevent ocean waters from flooding adjacent land
