Fallon, Stewart; McCulloch, Malcolm; Guilderson, Thomas
Coralline sponges (sclerosponges) have been proposed as a new source for paleo subsurface temperature reconstructions by utilizing methods developed for reef-building corals. However unlike corals, they do not have density variations, making age determination difficult. In this study, we examined multiple elemental ratios (B / Ca, Mg / Ca, Sr / Ca, Ba / Ca, U / Ca) in the coralline sponge Astrosclera willeyana. We also measured skeletal density profiles along the outer "living" edge of the...[Show more]
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