Multiple Choice
What kind of materials can be reliably dated by the C-14 method?
A) biotite, hornblende, and muscovite; particularly in Mesozoic and older rocks
B) Recent: clams, foraminifera, and wood <50,000 years old
C) Paleozoic oil and gas deposits in limestones
D) Precambrian zircons in igneous and metamorphic rocks
Correct Answer:

Verified
Correct Answer:
Verified
Q9: In a given area where you have
Q10: Which type of microfossils have a tooth-like
Q11: Which of the following means to recognize,
Q12: How can fossiliferous sedimentary rock most easily
Q13: Consider the names of the eras in
Q14: At the end of the Cretaceous (K/T
Q16: Carbon-14 is produced by cosmic rays reacting
Q18: Name the two Quaternary Epochs.
Q19: An unstable radioactive _ isotope decays to
Q20: Which of the following geologic observations would