The aplastic inclusions are always poorly sorted but can exhibit a bimodal distribution. The naturally occurring grains exhibit a high to moderate sphericity and are rounded to well rounded. Rarely grains occur that are elongated. Silt-sized planktonic foraminifera are found occasionally (1-3%). In some instances, there are very high levels of foraminifers, indicating a greater contribution of chalk sources. They occur in the clay matrix and are found in pieces of fossiliferous limestone (chalk). The fossils often contain sparites. The overwhelming majority of microfossils in the samples represent various species of the Genus Globigerina, include Globotruncana gagnebibi and Globorotalia pseudobulloides. Pieces of micritic lime mudstone occur in the samples occasionally to moderately. They occur in fine to coarse sand sized grains. Rarely, examples of silty limestones are found. Chalky limestones composed of Globigerina occur rarely. Rounded grains of fine to coarse sand sized calcite occur rarely. Rounded grains of quartz with a moderate to high sphericity occurred occasionally in the samples. Quartz most commonly occurs in fine to medium sand sized grains that are anhedral. Sand sized grains of hematite occurrs in trace amounts.