title: Dating Desert Ground Water.
abstract: Tritium in Arabian rainfall has followed the trend observed in North America with peaks in 1958 and the spring of 1959. These measurements will be useful for future hydrologic studies. Water from wadi gravels averages 10 yr old. Carbon-14 measurements of deep waters indicate ages of several thousand years.
authors.forename: L
authors.initials: L
authors.lastname: Thatcher
authors.forename: M
authors.initials: M
authors.lastname: Rubin
authors.forename: G F
authors.initials: GF
authors.lastname: Brown