If there is an abundance of foraminifera shells found in a sediment, it would be categorized as:
a. hydrogenous sediment.
b. calcareous ooze.
c. coccolithophore.
d. siliceous ooze.
ANS: B
Ooze is created when at least 30% of the sediment is biogenous in origin. There are two types of oozes
that form. Calcareous oozes are made from the shells of foraminifera, pteropods, and coccolithophores.
These are unable to form below a certain depth. Information can be found in the section Pelagic
Sediments Vary in Composition and Thickness
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