Geeology II Lab - Final
This rock will fizz in acid. Name this rock.
Coquina
Identify this specimen
Crinoid
In the diagram, what type of unconformity is this?
Disconformity
What type of unconformity is represented by Erosion a in block 1?
Disconformity
Identify this specimen
Eurypterid
Which is oldest- Intrusion N, Fault A, or Erosion I?
Fault A
This rock fizzes in hydrochloric acid. Name this rock.
Fossiliferous limestone
Identify this specimen
Gastropod
Identify this specimen
Graptolite
Does this mineral have cleavage or does it just fracture?
It does not have cleavage. It has irregular fracture.
Does this mineral have cleavage or does it just fracture?
It has 3 directions of cleavage at 90 degrees
Identify this specimen
Nautiloid
This rock fizzes in hydrochloric acid. Name this rock.
Oolitic limestone
Identify this specimen
Porifera
This rock does not fizz in acid. Name this rock.
Quartz sandstone
Identify the specimen
Rugose coral
Identify the specimen
Scleractinian coral
This rock does not fizz in hydrochloric acid. Name this rock.
Shale
Identify this specimen
Tabulate coral
In the image below, the igneous rock is younger than the sedimentary layers that is intrudes. This relationship is known as
The principle of instrusive relationships
Identify this specimen
Trilobite
In the diagram below, the part of the column indicated with the red arrow represents which of the following?
a transgression
Chert and chalk indicate deposition in this environment:
abyssal plain
Interpret the sedimentary environment in which this rock was deposited. Fine grained, laminated, organic-rich, black shale, with gray to black chert and chalk. Microfossils are probably present in the chalk.
abyssal plain
Describe the roundness of the grains of this sand.
angular
Sandstone with abundant feldspar indicates this type of climate:
arid
Interpret the sedimentary environment in which this rock was deposited. White to tan quartz sandstone, with quartz grains and silica cement, delta with molds of fossil brachiopods
barrier beach
In which fossil group are the valves (or shells) the same size, but mirror images of one another?
bivalve
Identify the fossil.
bivalve mollusc
Identify the fossil.
bivalve mullusc
Identify the fossil.
brachiopod
In which fossil group does the plane of symmetry cut through the center (across) of the valves (or shells)?
brachiopod
What mineral or grain type is present in this rock?
broken shells
Identify the structure below:
burrows
Burrows may be differentiated from borings because:
burrows form in soft sediment and borings form in hard sediment
Identify this mineral. It fizzes in acid.
calcite
What is the composition of the microfossil shown below?
calcite
Sands from warm, shallow tropical seas far from continental sources of sediments may be made up almost entirely of :
calcium carbonate
Stromatolitic limestone is associated with this environment:
carbonate tidal flat
What is the type of preservation of this fossil plant?
carbonization
What mineral or grain type? It does not fizz in acid.
clay minerals
Which is in the correct order for increasing grain size?
clay, silt, sand, gravel
Does this mineral have cleavage or does it just fracture?
cleavage in one direction
Identify the microfossils in the photo.
coccolithophore (calcite)
Identify the microfossils in the photo.
conodont (phosphate)
Graded bedding, turbidites, green to gray color, and litharenite/graywacke and fossiliferous shale characterize the deposits of this environment.
continental slope and rise
Interpret the sedimentary environment in which this rock was deposited. Gray limestone and fossiliferous shale interbedded with greenish gray graywacke or litharenite. Laminations and graded bedding. Fossils in the shale and limestone consist primarily of molds of brachiopods.
continental slope and rise
Identify the fossil.
crinoid
Identify the structure below:
cross-bedding
Identify the microfossils in the photo.
diatom
Identify the microfossils in the photo.
dinoflagellate
Identify this mineral
feldspar
What is the pink mineral in this igneous rock?
feldspar
What mineral or grain type is the pink mineral?
feldspar grains
Identify the fossil.
fern/plant
What is the texture of this Metamorphic rock?
foliated
What is the texture of this metamorphic rock?
foliated
Identify the microfossils in the photo.
foraminifera
Identify the fossil.
gastropod
what metamorphic rock is this
gneiss
Identify the structure below:
graded-bedding
Identify this igneous rock.
granite
Identify this mineral
halite
Identify this mineral
hematite
The lithologic symbol which resembles rectangular bricks represents this rock type:
limestone
What is the parent rock of this metamorphic rock?
limestone
What is the name of this metamorphic rock?
marble
Identify the structure below:
mudcracks
Identify this mineral
muscovite
What is the name of the mineral that makes up this metamorphic rock? It has one direction of cleavage.
muscovite
What type of luster does this mineral have?
non-metallic luster.
In the image below, the four pinkish rocks circled in blue are _________ than the sandstone layer P in which they are contained.
older
Examine the two green sands in the photos below. What is the green mineral in these two sands?
olivine
Identify this mineral
olivine/biotite/amphibole
These shells were originally calcite and currently fizz in hydrochloric acid. What is the type of preservation?
original material
What is the type of preservation of the small fossils preserved in this yellow material?
original material
what is the type of preservation?
original material
Identify the microfossils in the photo.
ostracode
What is the texture of this igneous rock?
phaneritic
What is the composition of the microfossil shown below?
phosphate
Examine the sand from Colorado in the photo below. The angular pink grains in the sand are what mineral?
potassium feldspar
What is the gold-colored metallic mineral in this shell?
pyrite
This mineral scratches glass. Identify this mineral
quartz
What mineral or grain type is dominant in this rock? It does not fizz in acid. The mineral is harder than glass.
quartz grains
Identify the microfossils in the photo.
radiolaria
What color is the streak
red/brown
Interpret the sedimentary environment in which this rock was deposited. Fossiliferous limestone dominated by very coarse coral pieces.
reef
A drop in sea level is called a:
regression
The shell material is white. the brown is sediment. The sample has been cut and polished. When you put acid on the white shells, they do not fizz. What is the type of preservation?
replacement
This fossil was found in NW Georgia. Usually they would be composed of calcite, but these don't fizz in hydrochloric acid. What is the type of preservation?
replacement
What is the type of preservation of this shell
replacement
What mineral or grain type? This rock does not fizz in acid. The large rounded grains will scratch glass.
rock fragments
As sediment is transported it comes into contact with the stream bottom (or sea floor) and other grains of sediment, it will become more ___________:
rounded
The lithologic symbol which resembles dots represents this rock type:
sandstone
What is the name of this metamorphic rock?
schist
Identify the microfossils in the photo.
sponge spicules
Identify the microfossils in the photo.
spores or pollen
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*choose longer/top answer*
If sandstone contains abundant rock fragment grains, it likely comes from an environment with this type of tectonic activity:
tectonically active
A vertical sequence of facies representing progressively deeper environments is: transgressive sequence
transgressive sequence
Asymmetrical ripples form under these conditions:
unidirectional currents
Graded beds form under these conditions:
waning currents/loss of velocity
Symmetrical ripples form under these conditions:
waves
Sediment that was transported a long time in a fairly high energy environment (waves or currents) tends to be:
well sorted
This metamorphic rock is mined in Georgia, and used for decorative building stone. It is hardness 3 on Mohs Hardness Scale. Would you expect this metamorphic rock to fizz in acid?
yes (marble)
Does this mineral have cleavage or does it just fracture?
2 directions of cleavage at 90 degrees
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Identify this specimen
Ammnonoid
Identify the specimen
Ammonoid
Identify this specimen
Ammonoid
What type of unconformity is represented by Erosion N in block 2?
Angular unconformity
This rock does not fizz in acid. Name this rock.
Arkose
Identify this specimen
Barnacles
Did the folding event (A) happen before or after the intrusion (J)?
Before
Identify this specimen
Bivalve
Identify this specimen
Brachiopod
Identify this specimen
Bryozoan
