Dry bulk density (g/cm3) and loss on ignition (%) of 1674 samples from Orakei Basin (Auckland Volcanic Field maar lake, New Zealand) on the event corrected depth scale (ECD; m). The ECD was developed in Peti and Augustinus (2019), the age model was developed in Peti et al. (2020). The data spans the time interval ca. 132 to 9.8 ka. Measurements were all conducted between 2017 and 2019 at the School of Environment, University of Auckland, New Zealand. DBD was acquired by drying a known volume of sediment and relating the dry mass to the volume (g/cm3). LOI%, as an indicator of organic matter, was acquired by igniting a known mass of sediment at 550°C and relating the mass loss to the initial mass (in %).