In the figure, "T" is _______?

A fossil found over a large area that only existed within a short time period:

All VA provinces have abundant fossils (and sedimentary rocks) EXCEPT ___________. 

Absolute dating uses the ________ to determine the numerical ages of rocks & fossils.

The law of ________ states that older rocks are at the bottom, and younger rocks are at the top.

The Earth is ______ years old.

Dinosaurs, reptiles, and birds are the dominant life forms of this era:

"middle life"

The end of an Era, and the end of life for most of organisms, is often caused by a:

The end of the Mesozoic Era was most likely caused by?

Which era best represents when humans first appeared on Earth?

"recent life"

Use relative age dating to put the rock layers in correct order from oldest to youngest.

What is the half-life of iodine-131? (read the graph)

The period when huge land plants were dominant and eventually became the coal and oil we use today.

As ____ evolved, they changed Earth’s atmosphere by producing oxygen.

What type of rock do almost all fossils form in?

An insect encased in amber is an example of what type of fossil?

What type of fossil is evidence such as a footprint, burrow, or teeth marks left behind by an animal?

Which of the following environments would NOT

contain fossils?

Identify the type of fossil that you see here; these are also known as impressions and copies

Identify the type of fossil that you see here; it is a dark silhouette outline of the plant

_______is the amount of time for one-half of a radioactive element to decay into a stable isotope

a law of relative dating: a magma intrusion or fault is younger than any rock layer it cuts through

In which environment would you be LEAST likely to find a fossil?

The body of an animal will likely become fossilized if:

Carbon-14 dating can be used to date 65 myo permineralized dinosaur bones (replaced remains):

If a section of rocks are missing because of erosion, it is called a/an:

What are the divisions of geologic time based upon?

What evidence supports a meteorite impact 65mya caused the dinosaur extinction?

What is the fossil fuel found and mined in the Appalachian Plateau Province?

Going in order from EAST to WEST what are the five Virginia Provinces?

Most of the gravel and sand deposits in Virginia are found in which region?

Contains deep narrow valleys and steep rugged mountain sides through sedimentary rocks.

Contains sandstone as old as 320 million years old

Coal beds can be found here

This region is best known for its rolling hills and valuable resources like kyanite and high quality slate:

What is the oldest province?

Which province is known for its karst topography?