Parnell, JohnMark, Darren FFrei, RobertFallick, Anthony EEllam, Rob M2014-09-092014-09-092014-06Parnell, J, Mark, D F, Frei, R, Fallick, A E & Ellam, R M 2014, 'Ar-40/Ar-39 dating of exceptional concentration of metals by weathering of Precambrian rocks at the Precambrian-Cambrian boundary', Precambrian Research, vol. 246, pp. 54-63. https://doi.org/10.1016/j.precamres.2014.02.0120301-9268http://hdl.handle.net/2164/3467102596156engPrecambrianPrecambrian-Cambrian boundarygreat unconformityore depositsweatheringMetazoanFish Canyon sanidineK-40 decay constantsisotopic compositionjoint determinationchromium isotopesimproved accuracygeochronologyconstraintssupergoruptransitionQE GeologyQEAr-40/Ar-39 dating of exceptional concentration of metals by weathering of Precambrian rocks at the Precambrian-Cambrian boundaryJournal article10.1016/j.precamres.2014.02.012246