OCG 451 Lecture Notes - Lecture 4: Terrigenous Sediment, Neritic Zone, Paleoclimatology

• School: URI
• Department: Oceanography
• Course: OCG 451
• Professor: David Smith, Lewis Rothstein

Document Summary

Exam 1 study guide solution: lecture 4: sediments and. Marine sediments are classified by size and origin. How do neritic and pelagic sediments differ (e. g. , region, composition, etc. )? (classification) Neritic sediments are found at continental margin and are primarily terrigenous. Pelagic sediments are found at deep-ocean floor and are primarily biogenous. What is the difference between well- and poorly-sorted sediments? (classification) Well sorted sediments are sediments that are composed of particles of one size found in environments with small fluctuating amounts of energy. Poorly sorted sediments are sediments that are composed varying particle sizes due to widely fluctuating energy. What are the types of oozes and what organisms create them? (oozes) The two types of oozes are calcareous and siliceous: Calcareous oozes- form of calcium carbonate derived from planktonic organisms. Siliceous oozes- made up of diatoms and radiolarians. What is the calcium carbonate compensation depth? (carbonate)