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Pronunciation varies by accent · noun
(geology, geochronology) A set of plotted points, appearing as a curve on a concordia diagram or isochron diagram, representing sample data from rock of the same age; the condition of being a member of said set (or on said curve)..
1994 [1988 Elsevier], H.-G. Attendorn, R. Bowen, Isotopes in the Earth Sciences, Chapman & Hall, page 131, Such lower intersections of resultant discordias with U-Th-Pb concordias are not significant in terms of geological time, merely changes which took place in the Th/U ratios or lead isotope ratios through the factors alluded to above.
Points above concordia indicate uranium loss and those below indicate uranium gain.
The addition of U to a carbonate sample on concordia causes the point to move off concordia in the direction of the origin.[…]The patterns that develop in the ^{₂₃₁}Pa-^{₂₃₀}Th concordia diagrams are similar to the responses of Pa-Th concordias presented in Section 10.5a.
Use concordia when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Concordia means (geology, geochronology) A set of plotted points, appearing as a curve on a concordia diagram or isochron diagram, representing sample data from rock of the same age; the condition of being a member of said set (or on said curve)..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
1994 [1988 Elsevier], H.-G. Attendorn, R. Bowen, Isotopes in the Earth Sciences, Chapman & Hall, page 131, Such lower intersections of resultant discordias with U-Th-Pb concordias are not significant in terms of geological time, merely changes which took place in the Th/U ratios or lead isotope ratios through the factors alluded to above.
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