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Zircon can be used to constrain CO_2 content of the early atmosphere. the compos

ID: 158865 • Letter: Z

Question

Zircon can be used to constrain CO_2 content of the early atmosphere. the composition of Earth's mantle. paleomagnetic pole reversals. the absolute ages of terrestrial rocks. A mineral appropriate for radiogenic age dating is resistant to chemical weathering. forms a solid solution with the radioactive element. can trap the daughter isotope. All of the above. Hydrogen bonding in minerals reduces bond strength. reduces mineral density. reduces directionality of bonds. All of the above. (a) and (b) only.

Explanation / Answer

1) zircon can be used to constrain the absolute ages of terristrial rock.

2) A mineral appropriate for radiogenic age dating option d.

3) Hydrogen bonding in minerals reduse the bond strength,reduce the density.