LEADER 01645nam  2200457   450 
001 9910713309703321
005 20200413100332.0
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035   $a(OCoLC)1150257401
035   $a(EXLCZ)995470000002500551
100   $a20200413d2019      ua             0
101 0 $aeng
135   $aur|||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aTritium as an indicator of modern, mixed, and premodern groundwater age /$fby Bruce D. Lindsey, Bryant C. Jurgens, and Kenneth Belitz
210  1$aReston, Virginia :$cU.S. Department of the Interior, U.S. Geological Survey,$d2019.
215   $a1 online resource (vii, 18 pages) $ccolor illustrations, color maps
225 1 $aScientific investigations report,$x2328-0328 ;$v2019-5090
320   $aIncludes bibliographical references (pages 15-18).
606   $aTritium dating
606   $aGroundwater tracers$zUnited States
606   $aGroundwater recharge$zUnited States
606   $aHydrogeology$zUnited States$xMethodology
606   $aAquifers$zUnited States
615  0$aTritium dating.
615  0$aGroundwater tracers
615  0$aGroundwater recharge
615  0$aHydrogeology$xMethodology.
615  0$aAquifers
700   $aLindsey$b Bruce D.$f1962-$01391410
702   $aJurgens$b Bryant C.
702   $aBelitz$b Kenneth
712 02$aGeological Survey (U.S.),
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910713309703321
996   $aTritium as an indicator of modern, mixed, and premodern groundwater age$93517626
997   $aUNINA