Stratigraphy Practice

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 scientific law tells us that if one rock layer crosses over other layers, then that layer of rock will be younger than any rock layers that it crosses?

• Cross-cutting

• Original Horizontality

• Unconformities

• Inclusions

List from youngest to oldest

• ECADB

• CABED

• BADCE

• BDACE

Tags

NGSS.MS-ESS1-4

In this diagram, what scientific law tells us that rock layer C is older than rock layer A?

• Cross-cutting

• Inclusions

• Superposition

• Unconformities

Tags

NGSS.MS-ESS1-4

In the diagram, what scientific law tells us that rock layer D is older than rock layer B?

• Cross-cutting

• Inclusions

• Superposition

• Unconformities

Tags

NGSS.MS-ESS1-4

Which layer is oldest?

• A

• W

• G

• Z

Tags

NGSS.MS-ESS1-4

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

In the diagram, what does letter D represent?

• A rock layer

• An earthquake

• An unconformity

• An inclusion

Tags

NGSS.MS-ESS1-4