01645nam 2200457 450 991071330970332120200413100332.0(CKB)5470000002500551(OCoLC)1150257401(EXLCZ)99547000000250055120200413d2019 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierTritium as an indicator of modern, mixed, and premodern groundwater age /by Bruce D. Lindsey, Bryant C. Jurgens, and Kenneth BelitzReston, Virginia :U.S. Department of the Interior, U.S. Geological Survey,2019.1 online resource (vii, 18 pages) color illustrations, color mapsScientific investigations report,2328-0328 ;2019-5090Includes bibliographical references (pages 15-18).Tritium datingGroundwater tracersUnited StatesGroundwater rechargeUnited StatesHydrogeologyUnited StatesMethodologyAquifersUnited StatesTritium dating.Groundwater tracersGroundwater rechargeHydrogeologyMethodology.AquifersLindsey Bruce D.1962-1391410Jurgens Bryant C.Belitz KennethGeological Survey (U.S.),GPOGPOBOOK9910713309703321Tritium as an indicator of modern, mixed, and premodern groundwater age3517626UNINA