About 97% organic matter and 3% clear, subangular quartz sand. Forams at 40%, at 30%. The remainder is about evenly divided between bryozoans,radiolarians, pteropods, ostracods,pelecypod and echinoid fragments.
Cite the IMLGS database as: Curators of Marine and Lacustrine Geological Samples Consortium. The Index to Marine and Lacustrine Geological Samples (IMLGS). National Geophysical Data Center, NOAA. doi:10.7289/V5H41PB8 [date of access].