Articles | Volume 12, issue 4
Biogeosciences, 12, 1223–1236, 2015
https://doi.org/10.5194/bg-12-1223-2015
Biogeosciences, 12, 1223–1236, 2015
https://doi.org/10.5194/bg-12-1223-2015
Research article
25 Feb 2015
Research article | 25 Feb 2015

Coral records of reef-water pH across the central Great Barrier Reef, Australia: assessing the influence of river runoff on inshore reefs

J. P. D'Olivo et al.

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Short summary
The boron isotope composition in the skeleton of massive Porites corals from the central Great Barrier Reef is used to reconstruct the seawater pH over the 1940-2009 period. The long-term decline in the coral-reconstructed seawater pH is in close agreement with estimates based on the CO2 uptake by surface waters due to rising atmospheric levels. We also observed a significant relationship between terrestrial runoff data and the inshore coral boron isotopes records.
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