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

??????

*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

??

??

???

???

????

???

???

????

????

????

????

?????

?????

?????

??????

??????

????????

??????

??????????

??????????

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