Shell debris of various sizes is mixed with cobbles, pebbles, and granules. 40% of the sample consists of calcareous hard parts, 58% of cobbles, pebbles, and granules, and 2% of agglutinated worm tubes.
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].