Historical Geology

Index fossils have usually formed from organisms which had

a

• narrow geographic distribution and existed for a long

  time

• e geographic distribution and existed for a long time

• wide geographic distribution and existed for only a

  short time

• narrow geographic distribution and existed for only a

  short time

Tags

NGSS.MS-LS4-1

According to the Earth Science Reference Tables, which event occurred at the time of the Alleghenyan Orogeny?

• the development of birds and mammals

• the development of primitive aquatic plants

• the extinction of many kinds of land animals

• the extinction of many kinds of marine animals

Tags

NGSS.MS-LS4-1

An unconformity between two sedimentary layers is most

likely produced by

• uplift followed by extensive erosion, submergence, and

  deposition

• a period of extrusive vulcanism followed by another

  period of extrusive vulcanism

• continuous sedimentation in a deep basin over a long

  period

• the deposition of gravel followed by the deposition of

  sand and silt

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

For which geologic period are no fossils found in New York

State?

• Silurian

• Ordovician

• Devonian

• Permian

Tags

NGSS.MS-LS4-1

Geologists have subdivided geologic time into units based

on

• rock type

• erosion rates

• fossil evidence

• landscape development

Tags

NGSS.MS-ESS1-4

Trilobite fossils from different time periods show small

changes in appearance. These observations suggest that

the changes may be the result of

• a variety of geological processes

• the gradual disintegration of radioactive substances

• evolutionary development

• periods of destruction of the geological record

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which feature is represented by line WX?

• a former erosional surface

• a fault

• an area of metamorphism

• an igneous intrusion

Tags

NGSS.MS-ESS1-4

Why is layer 4 likely to be a good time marker?

• Volcanic ash is usually a unique gray color.

• Volcanic ash can usually be dated with carbon-14.

• Volcanic ash is usually rapidly deposited over a large

  area.

• Volcanic ash usually contains index fossils.

Tags

NGSS.MS-ESS1-4

What type of rock forms fossils?

• Intrusive Igneous

• Extrusive Igneous

• Sedimentary

• Metamorphic

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

The oldest rocks are located on the bottom of undisturbed rock layers.

• Law of Superposition

• Law of Horizontality

• Law of Cross-Cutting Relationships

• Law of Unconformities

Answer explanation

Tags

NGSS.MS-ESS1-4