Wille, MartinSutton, JillEllwood, MichaelSambridge, MalcolmMaher, WilliamEggins, StephenKelly, Michelle2015-12-080012-821Xhttp://hdl.handle.net/1885/34004The silicon (Si) isotope (δ30Si) composition of deep-sea sponges from near Antarctica, subantarctic waters (Tasmania Seamounts) and subtropical waters north of New Zealand vary widely between +0.87‰ and -3.40‰ (vs. NBS28). Depth profiles show that spKeywords: Antarctica; Asymptotic behaviour; Depth profile; Depth range; Isotope fractionation; Isotope values; Isotopic fractionations; Isotopic variations; Marine sponge; New model; New zealand; Rayleigh; Sea sponge; Si concentration; Silicon isotopes; Southern Oc Isotope fractionation; Silicon; Silicon isotopes; Southern Ocean; SpongesSilicon isotopic fractionation in marine sponges: A new model for understanding silicon isotopic variations in sponges201010.1016/j.epsl.2010.01.0362016-02-24