MAR 104 Lecture Notes - Lecture 5: Pelagic Sediment, Terrigenous Sediment, Continental Shelf

• School: Stony Brook University
• Department: Marine Sciences
• Course: MAR 104
• Professor: henry Bokuniewicz

Document Summary

Sediment: particles of organic or inorganic matter that accumulate in a loose unconsolidated form: sediment can be classified by particle size. Waves and currents generally transport smaller particles farther than larger particles: sediment can also be classified according to its source. Hydrogenous: come from dissolved minerals from water, often bacteria. Pacific ocean contains more pelagic clays than. The rate at which calcareous sediments accumulate equals the rate at which these sediments dissolve. Hydrogenous sediments: originate from chemical reactions that occur in the existing sediment: often found in the form of nodules containing manganese and iron oxides. Evaporites: salts that precipitate as evaporation occurs: include many salts with economic importance, currently form in the gulf of california, the red sea, and the persian gulf. Clamshell samplers: can be used to obtain a relatively undisturbed sediment sample. What can be learned from the study of sediments.