Figure 6. Classification scheme and naming procedure for mixtures of siliciclastic and biogenic sediments. The names for microfossil components and the siliciclastic fraction are examples only (i.e., placeholders), and can be replaced by any valid textural name (for siliciclastic fraction) or microfossil name. Examples are foraminifer silty clay and nannofossil-rich sandy mud. The asterisks in the scheme for biogenic-clastic mixtures indicate an unusual component, such as plant debris, present in amounts of 5%-10%; use of this "-bearing" category is optional.

Figure 6. Classification scheme and naming procedure for mixtures of siliciclastic and biogenic sediments. The names for microfossil components and the siliciclastic fraction are examples only (i.e., placeholders), and can be replaced by any valid textural name (for siliciclastic fraction) or microfossil name. Examples are foraminifer silty clay and nannofossil-rich sandy mud. The asterisks in the scheme for biogenic-clastic mixtures indicate an unusual component, such as plant debris, present in amounts of 5%-10%; use of this "-bearing" category is optional.