Published March 1, 2021 | Version v1
Dataset Open

Impact of Coral Growth on Geochemistry: Lessons from the Galapagos Islands

  • 1. University of Arizona
  • 2. University of Michigan
  • 3. Australian Institute of Marine Science
  • 4. Brown University
  • 5. University of Edinburgh
  • 6. Chubb Limited
  • 7. University of Minnesota

Description

These datasets include trace element (Sr/Ca, Mg/Ca, and partial Ba/Ca) and coral growth metrics (skeletal density, annual extension rate, and annual calcification rate) for four coral records from Wolf Island, Galapagos: WLF03, WLF04, WLF05, and WLF10. Trace metal and coral skeletal density data are given after interpolating to monthly resolution, and, as in the publication, data are not averaged between overlapping transects to produce a single continuous time series. Analytical precisions are given in the metadata for each record.  Trace element data were corrected to an internal coral standard, and the inter-laboratory standard JCp-1 was measured for comparison. WLF04 and WLF05 are cored from the same subfossil coral colony and U/Th dated; WLF10 and WLF03 were collected from different live coral colonies. Both monthly data (trace elements, density) and annual data (trace elements, density, extension, and calcification) are given, where “annual” is defined as the time between successive March tie points, determined from Sr/Ca minima (inferred SST maxima).  WLF03 and WLF10 Sr/Ca were previously published in Jimenez et al. (2018) (https://doi.org/10.1002/2017GL075323), and the data here differ slightly from the prior publication: these data are presented in monthly resolution (as opposed to bimonthly resolution), are corrected to updated known values of the internal coral standard, and are not averaged between overlapping transects.  Additionally, colony growth data (density, extension, and calcification) are new in this study. 

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Additional details

Funding

Sampling Galapagos corals for SST trend reconstruction 0957881
National Science Foundation
Reconciling divergent histories of Eastern Pacific climate with new coral data from Galapagos (Ecuador) 1401326
National Science Foundation
Quantifying variability of the El Nino Southern Oscillation on adaptation-relevant time scales using a novel palaeodata-modelling approach NE/H009957/1
UK Research and Innovation