GEOL 101 Quiz #8

"Geological processes operating at the present time are the same processes that have operated in the past" is a statement of:

• the Principle of Faunal Succession.
• the Principle of Uniformitarianism.
• the Principle of Original Horizontality.
• the Principle of Cross-cutting Relationships.

If rock A cross-cuts rock B, then rock A is:

• on top of rock B.
• the same age as rock B.
• younger than rock B.
• older than rock B.

Which of the following is a method of correlation?

• similar fossil assemblages
• physical continuity
• similarity of rock types
• All of these can be used for correlation.

Eras of the Standard Geologic Time Scale are subdivided into:

• Ages.
• Epochs.
• Eons.
• none of these

Which subdivision of geologic time is the longest?

• Miocene Epoch
• Tertiary Period
• Mesozoic Era
• Precambrian

Which is a useful radioactive decay scheme?

• K40/Ar40
• U238/Pb206
• U235/Pb207
• all of these

Radiocarbon dating is a useful technique for all samples below except:

• granite.
• shells.
• bone.
• wood.

Radon is a gas derived from the natural radioactive decay of:

• Lead
• Potassium
• Plutonium
• Uranium

Concentrations of radon are highest in areas where the bedrock is:

• black shale.
• phyllite.
• basalt.
• sandstone.

Which of the following is not a type of unconformity?

• angular unconformity
• uniformity
• disconformity
• nonconformity