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Progress in Earth and Planetary Science
Fig. 8 | Progress in Earth and Planetary Science

Fig. 8

From: Evaluation of geochemical records as a paleoenvironmental proxy in the hypercalcified demosponge Astrosclera willeyana

Fig. 8

Scatter plot of a δ18O and δ13C and b elements/Ca ratios of sclerosponges. Data are shown as averages with 1σ standard deviations in individual samples, which show intraspecific variations in sclerosponge geochemistry. Red (EQ1) and gray (EQ2) areas are shown respectively as estimated ranges of isotopically equilibrium aragonite precipitated at the study site using a relation between seawater δ18O and salinity by Oba (1990) and Abe et al. (2009)

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