Samples belonging to Fabric 1A (Schmitt et al 2019) generally contain roughly 25–30% non-plastic inclusions and voids. The samples are dominated (12–18%) by fine and medium sand-sized grains of quartz that are generally sub- to well-rounded and equant. A few elongate grains can also be observed. The quartz grains are sometimes polycrystalline and often exhibit an undulose extinction. Rounded pieces of medium sandsized grey micritic limestone also occur (5–9%), along with infrequent highly rounded fine sand-sized grains of calcite (1–3%). Large rounded coarse sandsized argillaceous bodies are found rarely (1–3%). These commonly contain silt-sized grains of quartz and are often surrounded by shrinkage voids. Their texture shows they are highly argillaceous and likely represent clay pellets that perhaps remained unmixed during the preparation of the clay. Clay pellets are also observed that are lighter in colour and contain an abundance of microfossils. Highly rounded grains, orange in ppl, are noted rarely <1%. These grains exhibit little to no optical activity; they were identified as glauconite by SEM-EDS. Grains of zircon, microcline and epidote occurred in trace amounts. Fossils occurred rarely (1–3%), but consistently. Various species of globigerina are most common. Benthic fossils are represented infrequently by weathered fragments of nummilites. Fragments of coralline algae (such as amphiroa or mesophyllum) occurred infrequently (Fabric 2, Schmitt et al 2019).