Germanium incorporation into sponge spicules: Development of a proxy for reconstructing inorganic germanium and silicon concentrations in seawater

• Published in: Earth and Planetary Science Letters
• Main Authors: Ellwood, Michael J, Kelly, Michelle, Maher, William, De Deckker, Patrick
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Elsevier
• Subjects: Keywords: Germanium incorporation; Silicon concentrations; Sponge spicules; Fractionation; Germanium; Isotopes; Mathematical models; Seawater; Sediments; Silicon; Oceanography; sponge Ge/Si fractionation; Southern Ocean; Sponge
• Online Access: http://hdl.handle.net/1885/26297; https://doi.org/10.1016/j.epsl.2006.01.016; https://openresearch-repository.anu.edu.au/bitstream/1885/26297/5/U8610899xPUB432006.pdf.jpg; https://openresearch-repository.anu.edu.au/bitstream/1885/26297/7/01_Ellwood_Germanium_incorporation_into_2006.pdf.jpg

Measurements of germanium (Ge) in deep-sea sponge skeletons are presented for sponges collected by dredge and for spicules isolated from a range of deep-sea sediment cores. Germanium to silicon (Si) ratios (Ge/Sisp) for sponge silica ranged between 0.075