What Sediment Type Is The Rarest Found In The Ocean? Siliceous ooze is a type of biogenic pelagic sediment located on the deep ocean floor. Siliceous oozes are the least common of the deep sea sediments, and make up approximately 15% of the ocean floor. Oozes are defined as sediments which contain at least 30%
What Are Some Examples Of Hydrogenous Sediments? Hydrogenous sediments are sediments directly precipitated from water. Examples include rocks called evaporites formed by the evaporation of salt bearing water (seawater or briny freshwater). What is Hydrogenous sediments composed of? Hydrogenous sediments are created from chemical reactions in seawater. Under special chemical conditions, dissolved materials in seawater