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Coral microatolls from the central Pacific record late Holocene El Ni�o

Woodroffe, Colin; Gagan, Michael


Microatolls are discoid corals that have grown laterally because vertical growth is constrained by exposure at lowest tides. We demonstrate that a modern reef-flat Porites microatoll from Christmas (Kiritimati) Island preserves an oxygen isotope record of substantial sea surface temperature variations related to El Niño-Southern Oscillation (ENSO). We also show that a late Holocene fossil microatoll from the centre of the island contains interannual oxygen isotope variations over an approximate...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
Source: Geophysical Research Letters


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