Hill, Tessa M; LaVigne, M; Spero, Howard J; Guilderson, Thomas P; Gaylord, B; Clague, David A (2012): Age determination and geochemistry of corals from the North Pacific [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.825515, Supplement to: Hill, TM et al. (2012): Variations in seawater Sr/Ca recorded in deep-sea bamboo corals. Paleoceanography, 27(3), PA3202, https://doi.org/10.1029/2011PA002260
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Abstract:
A depth transect of deep-sea bamboo corals along the California margin provides evidence that coral strontium to calcium ratios (Sr/Ca[coral]) record seawater Sr/Ca ratios (Sr/Ca[sw]). A calibration was constructed utilizing Sr/Ca[coral] ratios and previously published Pacific Sr/Ca[sw] data (R**2 = 0.53, n = 12, p < 0.01): Sr/Ca[coral] (mmol/mol) = 4.62*Sr/Ca[sw] (mmol/mol) - 36.64. Sr/Ca[sw] is ultimately governed by the remineralization of Sr-containing shells of surface water-derived marine organisms (e.g., Acantharia) at intermediate water depths. California margin Sr/Cacoral records from 792 and 1295 m document fluctuations in Sr/Ca[sw] that appear decadal-scale. These results suggest that Sr/Casw may not be as stable as previously assumed and may be influenced by surface productivity on short timescales.
Coverage:
Median Latitude: 33.139250 * Median Longitude: -120.851500 * South-bound Latitude: 31.910000 * West-bound Longitude: -121.480000 * North-bound Latitude: 34.050000 * East-bound Longitude: -120.050000
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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2 datasets
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Datasets listed in this publication series
- Hill, TM; LaVigne, M; Spero, HJ et al. (2014): (Table 5) Mean Sr/Ca ratios of corals. https://doi.org/10.1594/PANGAEA.825513
- Hill, TM; LaVigne, M; Spero, HJ et al. (2014): (Table 3) Age determination and calculated growth rates of corals. https://doi.org/10.1594/PANGAEA.825507