Data for: The organic, inorganic and isotope geochemistry of the Holocene sapropel units in the Sea of Marmara and their Paleoceanographic significance

Data include in the three tables below are new in this research. The isotopic analyses of nitrogen (d15N) and organic carbon (d13Corg), together with total nitrogen (TN), and total organic carbon (TOC) were carried out using Vario Microcube Elemental Analyzer (E.A.) connected to an Isoprime 100 isotope ratio mass spectrometer (IRMS). Mo and Mn concentrations were measured on sediments, using Perkin Elmer NexION 350 Inductively Coupled Plasma Mass Spectrometer ( ICP-MS). Grain size analyses were performed after treatment for removal of carbonate, amorphous metal oxides, and silica, using a Malvern Mastersizer S equipment. Skewness sorting, and Mean grain size were determined using the Malvern software.