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Tuatara: Volume 30, Issue 1, December 1988

Fig. 1. An example of variation and inconsistencies in ring expression in sanded cores traken from Fijian kauri trees at Nadarivatu. Each core has a 5mm diameter. Core ‘a’ shows a zone of indistinct ring formation at left. To the right large variations in ring distances are seen causing difficulties in determining whether they are annually formed. Some rings are likely to be false (arrow). Core ‘b’ shows no visible ring formation for this section of the core. Core ‘c’ shows variation in the vis…

Fig. 1. An example of variation and inconsistencies in ring expression in sanded cores traken from Fijian kauri trees at Nadarivatu. Each core has a 5mm diameter. Core ‘a’ shows a zone of indistinct ring formation at left. To the right large variations in ring distances are seen causing difficulties in determining whether they are annually formed. Some rings are likely to be false (arrow). Core ‘b’ shows no visible ring formation for this section of the core. Core ‘c’ shows variation in the visibility of rings. Core ‘d’ shows evidence of ring wedging and false ring formation (arrowed).

Fig. 1. An example of variation and inconsistencies in ring expression in sanded cores traken from Fijian kauri trees at Nadarivatu. Each core has a 5mm diameter. Core ‘a’ shows a zone of indistinct ring formation at left. To the right large variations in ring distances are seen causing difficulties in determining whether they are annually formed. Some rings are likely to be false (arrow). Core ‘b’ shows no visible ring formation for this section of the core. Core ‘c’ shows variation in the visibility of rings. Core ‘d’ shows evidence of ring wedging and false ring formation (arrowed).