Even though volcanic records are not complete records, theyre still the best kind of records we have of recording a given time and place, higher accuracy in the age dating, and being able to get more detailed records [of the reversals]...will give the community a lot to think about.

John Tarduno

Its just going to be pointing toward the [region of] the highest magnetic field, it could be very close to you; it could be very far away.

Were talking billions of years.