Unconformities in Rock

When scientists are trying to compare things to see which geological artifacts are older or younger rather than find the actual age of something, this is called ____________.

• Relative aging

• Geologica aging

• approximate aging

• absolute aging

Fossils such as footprints, burrows or droppings.

• Index Fossils

• Unconformities

• Petrified Wood

• Trace fossils

A gap in the sequence of sedimentary rock layers caused by erosion.

• Inclusion

• Unconformity

• Cross-cutting

• Isotope

Tags

NGSS.MS-ESS1-4

Fossils made from organisms that were fairly common and existed only during a certain span of time, used to determine the age of rock layers.

• Index Fossils

• Unconformities

• Inclusions

• Trace Fossils

Tags

NGSS.MS-ESS1-4

What is the study of past life as rocks or fossils?

• Paleontology
• Archeology
• Fossilology

Tags

NGSS.MS-LS4-1

What is the idea that geologic processes are occurring now are the same as those that occurred in the past?

• Unconformities
• Uniformitarianism
• Epicism

What is found only in one layer of rock that indicates a geologic age?

• Cast fossil
• Index fossil
• Mold Fossil
• Geologic Rock

Tags

NGSS.MS-ESS1-4

These  cause missing layers in rock they are caused by movement of the earth. They form by erosion.

• unconformities
• mold fossil
• tracks
• underwater

Tags

NGSS.MS-ESS1-4

How far back in time can geologists study the history of the earth?

• 1.6 billion years
• 46 million years
• 4.6 billion years
• 160 billion years

Tags

NGSS.MS-ESS1-4

Horizontal layers are tilted and uplifted. New sediment is deposited on top.

• Unconformities

• Cross-Cutting

• Angular Unconformities

• Inclusions

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2