Chiza N Mwinde¹, Daniel P Babin², Allison M Franzese³, Steven L Goldstein¹, Ian R Hall⁴, Sidney R Hemming¹, Sophia K Hines², Kaoru Kubota⁵ and Margit H Simon⁶, (1)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (2)Lamont -Doherty Earth Observatory, Palisades, United States, (3)Hostos Community College, Department of Natural Sciences, New York, NY, United States, (4)Cardiff University, School of Earth and Ocean Sciences, Cardiff, CF24, United Kingdom, (5)Isotope Geochemistry Group, Kochi Institute for Core Sample Research, JAMSTEC, Tokyo, Japan, (6)NORCE, Norwegian Research Centre and Bjerknes Centre for Climate Research, Bergen, Norway