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Concept

Excess activity

URI http://vocab.nerc.ac.uk/collection/S06/current/S0600049/
Within Vocab BODC parameter semantic model parameter entity names
Alternative Labels
Definition Difference between the measured activity of a radioactive isotope and the activity of that isotope predicted from equilibrium in-situ decay of its parent in a decay scheme. This difference is used as the basis for radiometric dating.
Date 2022-04-27T17:00:33
Identifier SDN:S06::S0600049
Note accepted
Has Current Version 2
Version 1
version 2
Broader S01:S014 parameter entity Mapping: 1450350
Narrower
P01 BODC Parameter Usage Vocabulary - (12) [+]
P01:X210GSXX Excess activity of lead-210 {210Pb CAS 14255-04-0} per unit dry weight of sediment by compression into pellets and gamma spectroscopy Mapping: 827006
P01:X210IGXX Excess activity of lead-210 {210Pb CAS 14255-04-0} per unit dry weight of sediment by plating and alpha spectroscopy Mapping: 825416
P01:EDZ00101 Excess activity of radium-223 {223Ra} per unit mass of the water body [dissolved plus reactive particulate phase] Mapping: 1527041
P01:EDZ00301 Excess activity of radium-224 {224Ra CAS 13233-32-4} per unit mass of the water body [dissolved plus reactive particulate phase] Mapping: 1527059
P01:XTH0APXT Excess activity of thorium-230 {230Th CAS 14269-63-7} per unit dry weight of sediment by digestion, purification, plating and alpha spectroscopy Mapping: 825390
P01:XT34GSXT Excess activity of thorium-234 {234Th CAS 15065-10-8} per unit dry weight of sediment by gamma spectroscopy Mapping: 805934
P01:EDZ00201 Excess activity standard deviation of radium-223 {223Ra} per unit mass of the water body [dissolved plus reactive particulate phase] Mapping: 1527049
P01:EDZ00401 Excess activity standard deviation of radium-224 {224Ra CAS 13233-32-4} per unit mass of the water body [dissolved plus reactive particulate phase] Mapping: 1527067
P01:SX10GSXX Excess activity standard error of lead-210 {210Pb CAS 14255-04-0} per unit dry weight of sediment by compression into pellets and gamma spectroscopy Mapping: 827018
P01:SX10IGXX Excess activity standard error of lead-210 {210Pb CAS 14255-04-0} per unit dry weight of sediment by plating and alpha spectroscopy Mapping: 825428
P01:EXT0APXT Excess activity standard error of thorium-230 {230Th CAS 14269-63-7} per unit dry weight of sediment by digestion, purification, plating and alpha spectroscopy Mapping: 825402
P01:XTE4GSXT Excess activity standard error of thorium-234 {234Th CAS 15065-10-8} per unit dry weight of sediment by gamma spectroscopy Mapping: 805944

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