Diffuse reflectance spectroscopy (DRS) data are routinely collected by IODP. DRS data were collected at the IODP Gulf Coast Repository (GCR) in College Station, Texas (USA) using a hand-held Minolta C
Color reflectance data were measured on section halves using an integration sphere and a UV-VIS spectrophotometer mounted on the Section Half Multisensor Logger (SHMSL). Spectral counts are recorded i