Accepted Manuscript Differences between mono-generic and mixed diatom silicon isotope composi- tions trace present and past nutrient utilisation off Peru Kristin Doering, Claudia Ehlert, Patricia Grasse, Xavier Crosta, Sophie Fleury, Martin Frank, Ralph Schneider PII: S0016-7037(15)00731-0 DOI: http://dx.doi.org/10.1016/j.gca.2015.12.029 Reference: GCA 9561 To appear in: Geochimica et Cosmochimica Acta Received Date: 24 February 2015 Accepted Date: 23 December 2015 Please cite this article as: Doering, K., Ehlert, C., Grasse, P., Crosta, X., Fleury, S., Frank, M., Schneider, R., Differences between mono-generic and mixed diatom silicon isotope compositions trace present and past nutrient utilisation off Peru, Geochimica et Cosmochimica Acta (2016), doi: http://dx.doi.org/10.1016/j.gca.2015.12.029 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.