2017 Fall Exam 1 Test A

Radiometric dating

________ is possible if a rock contains a measurable amount of.

Tyrannosaurus Rex

________ lived during the Upper Cretaceous period (roughly 100- 66 Ma ago) in the era.

lithosphere

The ________ is made up of the uppermost mantle and the.

Glacial ice

________ once covered much of what is now India and Australia.

biblical scholar

Was a classical and ________ who created a careful and critical chronology of human history, including the date of the Creation of the Earth (4004 BC)

Clay minerals

________ are common examples of silicate structures.

CO3

A (n) is a negatively charged element or element group such as Cl- or ________- 2.

Moon

A disk of orbiting material was formed, and this matter eventually condensed to form the ________ in orbit around the Earth.

Mesosaurus

________ migrated across the ocean from location X to location Y.

scratches

Are ________ or gouges cut into bedrock by glacial abrasion.

Mesosaurus

________ came into existence on several widely separated continents at different times.

is thick (30 

75 km), old (up to 4,400,000,000 years), composed of felsic (granitic) silicates, light (-2.7 g/cm3), and is highly deformed by folding

older

- younger

Hint

how many half-lives have elapsed