Correlation Index Fossils And Unconformities Question Preview (ID: 56793)

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During which geologic epoch was layer F deposited?

a) Late Devonian

b) Middle Devonian

c) Early Devonian

d) Late Silurian

Which pair of organisms existed when the unconsolidated sediment in layer A was deposited?

a) birds and trilobites

b) dinosaurs and mastodonts

c) ammonoids and grasses

d) humans and vascular plants

The depositional environment dming the time these layers and fossils were deposited

a) was consistently marine

b) was consistently terrestrial (land)

c) changed from marine to terrestrial (land)

d) changed from terrestrial (land) to marine

What does the unconformity (buried erosional surface) at line XY represent?

a) an area of contact metamorphism

b) a time gap in the rock record of the area

c) proof that no deposition occurred between the Cambrian and Carboniferous periods

d) overturning of the Cambrian and Carboniferous rock layers

Evidence best indicates that rock layers 4 and 8 were deposited during the same geologic period because both layers

a) contain the same index fossil

b) are composed of glacial sediments

c) contain index fossils of the same age

d) are found in the same area

Many parts of the rock record in New York State are missing. These parts are most likely missing because of

a) uplift and erosion

b) earthquakes and volcanic activity

c) subsidence and deposition

d) folding and faulting

Fossil evidence indicates that the earliest birds developed during which time interval?

a) A

b) B

c) C

d) D

The unconformity between the Paleozoic sedimentary rocks and the Precambrian sedimentary rocks represents

a) a gap in the geologic time record

b) an intrusion of igneous rock

c) an abundance of fossils

d) a region of metamorphic rock

Rock layer X at location B is most likely the same relative as which rock layer at location A?

a) 1

b) 2

c) 3

d) 4

The fault is older than the

a) slate

b) marble

c) unconformity

d) shale

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