title: GEOLOGICAL SOCIETY OF AMERICA MEETING: Geologists Pursue Solar System's Oldest Relics.
abstract: Last month, the Geological Society of America held their annual meeting here. Offerings included claims for the oldest known examples in a class: the oldest scrap of ocean crust, the oldest sample of Earth, and the oldest trace of life--which happens to come from Mars.
authors.forename: R A
authors.initials: RA
authors.lastname: Kerr