MD13-3457 is a calypso core taken from the East Melilla Mound Province, an area with multiple cold-water coral mounds. Taken from the nearby seafloor, and 20.31m long, it provides a perfect record to compare the common sedimentary system surrounding the mounds (off-mound) with cores taken from the cold-water coral mounds themselves. Here, we provide sediment dry bulk density measurements from sediment samples performed with Pycnometer following ODP Standards, that can be used to calculate organic and inorganic carbon accumulation rates (in combination with our AMS 14C ages).