Relative Dating and Absolute Dating

Which type of dating method can be used on rock layers by applying the Law of Superposition?

• relative dating

• absolute dating

• radioactive dating

• radiometric dating

Which of the following is NOT true about Absolute Dating?

• It is a quantitative method of dating.

• It uses simple principles to recognize the relative ages of rocks.

• It is used to give rocks an actual date, or date range, in number of years.

• It uses radiometric method by radioactive decay: concept of Isotopes and concepts of half- life.

Which of the following is NOT true about Relative Dating?

• quantitative method of dating

• principles to recognize the relative ages of rocks

• used to arrange geological events and the rocks they leave behind in sequence

• used stratigraphy method (oldest found at the bottom and youngest at the top)

The absolute age of an igneous rock can best be determined by ___________

• examining the rock’s relative position in a rock outcrop

• examining the environment in which the rock is found.

• comparing the size of crystals in the upper and lower parts of the rock

• comparing the amount of decayed and undecayed radioactive isotopes

Use the picture below to answer: Which rock layer is the oldest?

• 1

• 2

• 3

• 4